Fixed-Mounted Circuit Breaker Switchgear Types 8DA and 8DB, up to 40.5 Kv, Gas-Insulated · Siemens HA 35.11 U.S

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Catalog HA 35.11 · U.S. Fixed-mounted circuit breaker switchgear Edition January 2019 types 8DA and 8DB, up to 40.5 kV, gas-insulated Medium-voltage switchgear

usa.siemens.com/mvswitchgear Application Typical uses R-HA35-170.tif

Application Public power supply system R-HA35-132c.tif Application Traction power supply R-HA35-171.tif

Application Industry

R-HA35-092.tif Application Offshore and industry R-HA25-363.tif R-HA35-123.psd

2 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Contents

Fixed-mounted Application Page Versions, typical uses, circuit breaker ratings 4 and 5 switchgear, Requirements types 8DA and 8DB, Features, safety, technology 6 and 7 Technical data up to 40.5 kV, Electrical data 8 and 9 Room planning 10 and 11 gas-insulated Shipping data 12 Classification 13 Medium-Voltage Switchgear Dimensions Front views, sections, Catalog HA 35.11 · U.S. floor openings, fixing points 14 to 21 Edition January 2019 Product range www.usa.siemens.com/mvswitcgear Single-busbar panels 22 and 23 Double-busbar panels 24 to 30 Single-pole and double-pole single-busbar panels 8DA11/12 31

Design Basic panel design 32 and 33 Gas compartment scheme 34 and 35

Components Vacuum circuit breaker 36 and 37 Three-position disconnector 38 and 39 Control board 40 Busbar, busbar components 41 Current and voltage transformers 42 and 43 Panel connection 44 and 45 Panel connection (commercially available cable plugs and bar connections) 46 Indicating and measuring equipment 47 to 50 Protection, control, measuring, and monitoring equipment 51 to 53 ANSI design 54 to 57

Standards Standards, specifications, guidelines 58 and 59

First 8DA10 – Year of manufacture 1982 60

The products and systems described in this catalog are manufactured and sold according to a certified management system (acc. to ISO 9001, ISO 14001 and BS OHSAS 18001).

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 3 Application Versions R-HA35-135.tif R-HA35-136.tif R-HA35-137.tif

Circuit breaker panel 8DA10 Circuit breaker panel 8DB10 Circuit breaker panel 8DA11/12

4 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Application Typical uses, ratings

Fixed-mounted circuit breaker switchgear 8DA and 8DB Electrical data (maximum values) and dimensions is indoor, factory-assembled, type-tested, single-pole Single-busbar and double-busbar switchgear metal-enclosed, gas-insulated switchgear with metallic partitions 3), for single-busbar and double-busbar Rated voltage kV 12 24 36 40.5 applications, as well as for traction power supply systems. Rated frequency Hz 50 / 60 50 / 60 50 / 60 50 / 60 Rated short-duration It is used in transformer and switching substations, e.g., in: power-frequency 1) 2) • Power supply companies withstand voltage kV 28 50 70 85 Rated lightning-impulse • Power stations withstand voltage kV 75 1) 125 170 185 2) • Cement industry Rated peak-withstand current kA 100/104 100/104 100/104 100/104 • Automobile industry Rated short-circuit • Iron and steel works making current kA 100/104 100/104 100/104 100/104 • Rolling mills Rated short-time • Mining industry withstand current 3 s kA 40 40 40 40 Rated short-circuit • Textile, paper, and food industries breaking current kA 40 40 40 40 • Chemical industry Rated normal current • Petroleum industry of the busbar A 5,000 5,000 5,000 5,000 • Pipeline installations Rated normal current A 2,750 4) 2,750 4) 2,750 4) 2,750 4) 5) 5) 5) 5) • Offshore installations of feeders A 3,150 3,150 3,150 3,150 Width mm 600 600 600 600 • Electrochemical plants Depth (wall-standing • Petrochemical plants arrangement): • Shipbuilding industry – Single busbar mm 1,625 1,625 1,625 1,625 • Diesel power plants – Double busbar mm 2,665 2,665 2,665 2,665 • Emergency power supply installations Height: – Standard mm 2,350 2,350 2,350 2,350 • Lignite open-cast mines – With high low-voltage • Traction power supply systems. compartment mm 2,700 2,700 2,700 2,700

Single-pole and double-pole traction power supply switchgear Rated voltage kV 17.25 27.5 Rated frequency Hz 16.7 50 /60 Rated short-duration power-frequency withstand voltage kV 50 95 Rated lightning-impulse withstand voltage kV 125 200 Rated peak-withstand current kA 80 80 Rated short-circuit making current kA 80 80 Rated short-time withstand current 3 s kA 31.5 31.5 Rated short-circuit breaking current kA 31.5 31.5 Rated normal current of the busbar A 3,150 3,150 Rated normal current of feeders A 2,500 2,500 Width mm 600 600 Depth: – Single pole-traction switchgear mm 865 865 – Double pole-traction switchgear mm 1,245 1,245 Height: – Standard mm 2,350 2,350 1) 42 kV / 70 kV according to some national requirements – With high low-voltage compartment mm 2,700 2,700 2) 95 kV / 190 kV according to some national requirements 3) Corresponds to ”metal-clad“ according to former standard IEC 60298 4) 2,750 A without forced ventilation (8DB10 on request) 5) 3,150 A with forced ventilation (8DB10 on request)

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 5 Requirements Features Safety

Environmental independence Personal safety: The enclosed high-voltage part of 8DA and 8DB switchgear • Safe-to-touch and hermetically sealed primary enclosure is suitable for applications under aggressive ambient • All high-voltage parts including the cable terminations, conditions, such as: busbars and voltage transformers are metal-enclosed • Saline air • Capacitive voltage detecting system to verify safe • Air humidity isolation from supply • Dust • Operating mechanisms and auxiliary switches safely • Condensation. accessible outside the primary enclosure (switchgear It is tight to ingress of foreign objects, such as: housings) • Dust • Due to the system design, operation is only possible • Pollution with closed switchgear enclosure • Small animals. • Standard degree of protection IP 65 for all high-voltage parts of the primary circuit, IP 3XD for the switchgear The application is independent of the site altitude. enclosure according to IEC 60529 Compact design • High resistance to internal arcs by logical mechanical interlocks and tested switchgear enclosure Thanks to the use of gas insulation, compact dimensions are possible. • Panels tested for resistance to internal faults up to 40 kA • Logical mechanical interlocks prevent maloperation Thus: • Make-proof earthing by means of the vacuum circuit • Existing switchgear rooms can be used effectively breaker. • New constructions cost little • Costly city-area space is saved. Security of operation: • Hermetically sealed primary enclosure independent of Maintenance-free design environmental effects (pollution, humidity, and small Switchgear housings designed as sealed pressure systems, animals) maintenance-free switching devices and enclosed cable • Maintenance-free in an indoor environment according to plugs ensure: IEC 62271‑1 • Maximum supply reliability • Two-phase and three-phase short circuits between the • Personnel safety primary conductors of the switchgear are excluded by • Sealed-for-life design according to IEC 62271‑200 the single-pole primary enclosure (sealed pressure system) • In isolated or compensated systems, low-current • Reduced operating costs earth-fault currents are self-extinguishing • Cost-efficient investment. • Operating mechanisms of switching devices accessible outside the primary enclosure (switchgear housings) Innovation • Metal-enclosed, plug-in inductive voltage transformers The use of digital secondary systems and combined mounted outside the switchgear housings protection and control devices ensures: • Current transformers as ring-core current transformers • Clear integration in process control systems mounted outside the switchgear housings • Flexible and highly simplified adaptation to new system • Complete switchgear interlocking system with logical conditions and thus to cost-efficient operation. mechanical interlocks Service life • Bolted switchgear housings sealed for life Under normal operating conditions, the expected service • Minimum fire load life of gas-insulated switchgear 8DA and 8DB is at least • Option: aseismic design. 35 years, probably 40 to 50 years, taking the tightness of Reliability: the enclosed high-voltage part into account. The service life is limited by the maximum number of operating cycles • Type and routine-tested of the switching devices installed: • Standardized, NC production processes • For circuit breakers, according to the endurance class • Quality assurance in accordance with DIN EN ISO 9001, defined in IEC 62271‑100 DIN EN ISO 14001 and BS OHSAS 18001 • For three-position disconnectors and earthing • Up to now, more than 100,000 8DA and 8DB switchgear switches, according to the endurance class defined panels successfully in operation worldwide. in IEC 62271‑102.

6 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Requirements Technology

General: Modular design: • Single-pole enclosure of the primary part by modular • Replacement of the panel connection housings or the switchgear housings made of corrosion-resistant circuit breaker possible without interrupting busbar aluminum alloy operation

• Insulating gas SF6 (fluorinated greenhouse gas in sealed • Low-voltage compartment removable, plug-in bus wires pressure system according to IEC 62271‑1) • Extension of double-busbar switchgear 8DB10 possible • Three-position disconnector as busbar disconnector and without interrupting operation feeder earthing switch • Option: extension of single-busbar switchgear 8DA10 • Make-proof earthing by means of the vacuum circuit possible without interrupting operation. breaker Instrument transformers: • Compact dimensions due to gas insulation • Hermetically bolted switchgear housings made of • Current transformers not subjected to dielectric stress corrosion-resistant aluminum alloy • Metal-enclosed, plug-in, and disconnectable voltage • Single-pole, metal-enclosed, gas-insulated busbars transformers. • Cable connection with inside-cone plug-in system, or for Vacuum circuit breaker: connection of gas-insulated and solid-insulated bars • Maintenance-free under normal ambient conditions • Wall-standing or free-standing arrangement according to IEC 62271‑1 • Installation and extension of existing switchgear at both • No relubrication or readjustment ends without modification of existing panels. • Vacuum interrupters sealed for life Interlocks: • Up to 10,000 operating cycles (maintenance-free) • According to IEC 62271‑200 • Option: Up to 30,000 operating cycles • Logical mechanical interlocks prevent maloperation (maintenance required). • Three-position disconnector can only be operated with Secondary systems: circuit breaker in OPEN position • Protection, measuring, and control equipment • Circuit breaker can only be operated with three-position • Option: numerical multifunction protection relay disconnector in end position and operating lever with integrated protection, control, communication, removed operating, and monitoring functions • Locking device for circuit breaker • Can be integrated in process control systems. • Locking device for three-position disconnector • “Feeder earthed” locking device • Option: electromagnetic interlocks.

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 7 Technical data Electrical data, functional level, temperature for single-busbar and double-busbar switchgear

Common Rated insulation level Rated voltage Ur kV 12 24 36 40.5 electrical Rated short-duration, power-frequency data, withstand voltage Ud: functional 1) 2) 3) – phase-to-earth, open contact gap kV 28 50 70 85 level and 1) 2) 3) – across the isolating distance kV 32 60 80 90 temperature Rated lightning-impulse withstand voltage Up: 4) – phase-to-earth, open contact gap kV 75 125 170 185 4) – across the isolating distance kV 85 145 195 220

Rated frequency fr Hz 50 / 60 50 / 60 50 / 60 50 / 60 9) Rated normal current Ir of the busbar A 1,250 1,250 1,250 1,250 A 2,000 2,000 2,000 2,000 A 2,500 2,500 2,500 2,500 A 3,150 3,150 3,150 3,150 A 4,000 4,000 4,000 4,000 A 5,000 5,000 5,000 5,000

Rated functional level pre (relative) of the busbar 70 /120 kPa at 20 °C

Minimum functional level pme 50 /100 kPa at 20 °C Ambient air temperature – 5 °C to + 55 °C 13)

Data of the switchgear panels 9) Circuit Rated normal current Ir A 1,250 1,250 1,250 1,250 breaker panel, A 1,600 1,600 1,600 1,600 disconnector A 2,000 2,000 2,000 2,000 panel 6) A 2,500 2,500 2,500 2,500 A 2,750 10) 2,750 10) 2,750 10) 2,750 10) A 3,150 11) 3,150 11) 3,150 11) 3,150 11)

Rated short-time withstand current Ik tk = 3 s up to kA 40 40 40 40 5) Rated peak-withstand current Ip up to kA 100 / 104 100 / 104 100 / 104 100 / 104 5) Rated short-circuit making current Ima up to kA 100 / 104 100 / 104 100 / 104 100 / 104

Rated short-circuit breaking current Isc up to kA 40 40 40 40 Electrical endurance of at rated normal current 10,000 operating cycles 12) vacuum circuit breakers at rated short-circuit breaking current 50 breaking operations

Rated functional level pre (relative) for feeders 70 /120 kPa at 20 °C

Minimum functional level pme 50 /100 kPa at 20 °C

9) Bus Rated normal current Ir A 1,250 1,250 1,250 1,250 sectionalizer, A 2,000 2,000 2,000 2,000 bus coupler 7) A 2,500 2,500 2,500 2,500 A 2,750 10) 2,750 10) 2,750 10) 2,750 10) A 3,150 11) 3,150 11) 3,150 11) 3,150 11)

Rated functional level pre (relative) for feeders 70 /120 kPa at 20 °C

Minimum functional level pme 50 /100 kPa at 20 °C

8) 9) Cable Rated normal current Ir A 1,250 1,250 1,250 1,250 connection A 2,000 2,000 2,000 2,000 panel, A 2,500 2,500 2,500 2,500 metering A 2,750 10) 2,750 10) 2,750 10) 2,750 10) panel A 3,150 11) 3,150 11) 3,150 11) 3,150 11)

Rated short-time withstand current Ik tk = 3 s up to kA 40 40 40 40 5) Rated peak-withstand current Ip up to kA 100 / 104 100 / 104 100 / 104 100 / 104

Rated functional level pre (relative) for feeders 70 /120 kPa at 20 °C

Minimum functional level pme 50 /100 kPa at 20 °C

8 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Technical data Electrical data, functional level, temperature for single-pole and double-pole traction power supply switchgear

Common Rated insulation level Rated voltage Ur kV 17.25 27.5 electrical data, Nominal voltage according to IEC 60850 / EN 50163 kV 15 25 functional level Rated short-duration power-frequency and temperature withstand voltage Ud: – phase-to-earth, open contact gap kV 50 95 – across the isolating distance kV 60 110

Rated lightning-impulse withstand voltage Up: – phase-to-earth, open contact gap kV 125 200 4) – across the isolating distance kV 145 220

Rated frequency fr Hz 16.7 50 /60 9) Rated normal current Ir of the busbar A 1,250 1,250 A 2,000 2,000 A 2,500 2,500 A 3,150 3,150

Rated functional level pre (relative) of the busbar 120 kPa at 20 °C

Minimum functional level pme 100 kPa at 20 °C Ambient air temperature –5 °C to +55 °C 13)

Data of the switchgear panels 9) Circuit Rated normal current Ir A 1250 1250 breaker panel, A 1600 1600 disconnector A 2000 2000 panel A 2500 2500

Rated short-time withstand current Ik tk = 3 s up to kA 31.5 31.5 5) Rated peak-withstand current Ip up to kA 80 80 / 82 5) Rated short-circuit making current Ima up to kA 80 80 / 82

Rated short-circuit breaking current Isc up to kA 31.5 31.5 Electrical endurance of at rated normal current 20,000 operating cycles vacuum circuit breakers at rated short-circuit breaking current 50 breaking operations

Rated functional level pre (relative) for feeders 120 kPa at 20 °C

Minimum functional level pme 100 kPa at 20 °C

9) Bus sectionalizer Rated normal current Ir A 1250 1250 A 2000 2000 A 2500 2500

Rated short-time withstand current Ik tk = 3 s up to kA 31.5 31.5 5) Rated peak-withstand current Ip up to kA 80 80 / 82 5) Rated short-circuit making current Ima up to kA 80 80 / 82

Rated functional level pre (relative) for feeders 120 kPa at 20 °C

Minimum functional level pme 100 kPa at 20 °C

Footnotes for pages 8 and 9 1) Higher values of the rated short-duration power-frequency with- 5) Higher value applies to 60 Hz stand voltage available with: 6) Disconnector panel available for single-busbar switchgear 8DA10 - 42 kV for phase-to-earth and open contact gap, as well as 7) Bus coupler available for double-busbar switchgear 8DB10 - 48 kV across the isolating distance 8) Rated normal current Ir for cable connection panels 2) Higher values of the rated short-duration power-frequency with- 9) Maximum permissible normal current dependent on ambient air stand voltage available with: temperature - 65 kV for phase-to-earth and open contact gap, as well as 10) 2750 A without forced ventilation (8DB10 on request) - 75 kV across the isolating distance 11) 3150 A with forced ventilation (8DB10 on request) 3) Higher values of the rated short-duration power-frequency withstand voltage available with: 12) Option: 30,000 operating cycles - 95 kV for phase-to-earth and open contact gap, as well as 13) Option: Ambient air temperature –25 °C to +55 °C - 120 kV across the isolating distance 4) Higher values of the rated lightning-impulse withstand voltage available with: - 190 kV for phase-to-earth and open contact gap, as well as - 230 kV across the isolating distance

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 9 10 Room planning Technical data Fixed-mounted circuit breaker switchgear types8DA and 8DB,upto 40.5kV, gas-insulated 2019 · SiemensHA35.11 U.S. ·January

HA35-2637 eps HA35-2639 eps HA35-2635 eps ³ ³ ³ 100*** 100*** 100*** 152 152 152 600 600 600 Wall-standing arrangement (top view) (top arrangement Wall-standing Room planning for traction power supply switchgear 8DA12 switchgear supply power traction for planning Room Room planning for traction power supply switchgear 8DA11 switchgear supply power traction for planning Room Room planningRoom 8DA10 switchgear for single-busbar 600 600 600 152 152 152 ³ ³ ³ 500** 500** 500**

³800* 1245 ³100 ³800* 865 ³100 ³800* 1625 ³100

HA35-2638a eps HA35-2640a eps ³ ³ Free-standing arrangementFree-standing (top view) 100*** 100*** 152 152 600 600 600 600 152 152 ³ ³ 500** 500**

³800* 1265 ³800 ³800* 885 ³800 • • Switchgear fixing 14 pages (see to21). panels individual of the dimensions the on depend dimensions door The dimensionsDoor isrequired. arrangement in8DB10, free-standing components busbar switchable For higher. have may tobe height room minimum the components, any are busbar there If mm. +200 height ≥switchgear height: Room above. drawings dimension See dimensions Room • • See pages 14 pages to21.See Panel dimensions – – • Switchgear installation

– – Foundations: 14 pages to21see switchgear, the of points fixing and openings floor For (IAC AFLR). wall rear with arrangement Free-standing (IAC AFL) wall rear without arrangement Free-standing (IAC AFL) wall rear without arrangement Wall-standing welded or bolted on. rails, foundation with concrete Steel-reinforced Steel girder construction

HA35-2641 eps ³ 100*** 152 Fixed-mounted circuit breaker switchgear types8DA and 8DB,upto 40.5kV, gas-insulated 2019 ·SiemensHA35.11 U.S. ·January 600 Wall-standing arrangement (top view) (top arrangement Wall-standing Room planningRoom 8DB10 switchgear for double-busbar 600 152 ³ 500**

³800* 2665 ³100

HA35-2642a eps ³ Free-standing arrangementFree-standing (top view) 100*** 152 600

***) **) *)

or on the right the on or left the on required optionally on the left or on the right the on or left the on possible optionally mm ≥ 100 distance minimum wall Lateral ≥500 distance wall Lateral requirements national on Depending 600 Technical data 152 ³ 500** Room planning

³800* 2685 ³800

11 Technical data Shipping data

Transport Transport dimensions, transport weights 1) Single-busbar switchgear 8DA10 Panel widths Transport dimensions Transport weight Transport weight and traction power supply Width × Height × Depth with packing without packing switchgear 8DA11/12 is deliv- mm mm × mm × mm approx. kg approx. kg ered in transport units comprising up to four panels. Double-busbar switchgear Single-busbar switchgear 8DA10 8DB10 is delivered in transport Means of transport: Truck units comprising up to three 1 × 600 1370 × 2550 × 1888 850 750 panels. 2 × 600 1764 × 2550 × 1870 1700 1500 Please observe the following: 3 × 600 2400 × 2550 × 1870 2550 2250 • Transport facilities on site 4 × 600 2964 × 2550 × 1870 3400 3000 • Transport dimensions and transport weights Means of transport: Ship and airplane • Size of door openings in 1 × 600 1388 × 2700 × 1888 850 750 building. 2 × 600 1764 × 2700 × 1888 1700 1500 3 × 600 2400 × 2700 × 1888 2550 2250 Packing 4 × 600 2964 × 2700 × 1888 3400 3000 • Means of transport: Truck ––Panels on pallets ––Open packing with PE Double-busbar switchgear 8DB10 protective foil. Means of transport: Truck • Means of transport: Ship and 1 × 600 1370 × 2550 × 3124 1300 1200 airplane 2 × 600 1870 × 2550 × 3124 2600 2400 ––Panels on pallets 3 × 600 2416 × 2550 × 3124 3900 3600 ––In closed crates with sealed Means of transport: Ship and airplane upper and lower PE protective foil 1 × 600 1388 × 2850 × 3124 1300 1200 ––With desiccant bags 2 × 600 1888 × 2850 × 3124 2600 2400 ––With sealed wooden base 3 × 600 2440 × 2850 × 3124 3900 3600 ––Max. storage time: 6 months. • Long-time packing Traction power supply switchgear 8DA11/ 12 ––Panels on pallets ––In closed crates with sealed, Means of transport: Truck aluminum-coated PE 1 × 600 1370 × 2550 × 1888 600 500 protective foil 2 × 600 1764 × 2550 × 1870 1200 1000 ––With desiccant bags 3 × 600 2400 × 2550 × 1870 1800 1500 ––With sealed wooden base 4 × 600 2964 × 2550 × 1870 2400 2000 ––Max. storage time: Means of transport: Ship and airplane 12 months. 1 × 600 1388 × 2700 × 1888 600 500 2 × 600 1764 × 2700 × 1888 1200 1000 3 × 600 2400 × 2700 × 1888 1800 1500 4 × 600 2964 × 2700 × 1888 2400 2000

1) Average values based on standard subframe with LV compartment 850 mm depending on the degree to which panels are equipped

12 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Technical data Classification

Classification of 8DA and 8DB switchgear according to IEC 62271‑200 Design and construction Partition class PM (metallic partition) 1) Loss of service continuity category LSC2 Accessibility to compartments (enclosure) Busbar compartment Tool-based Switching-device compartment Tool-based Low-voltage compartment Tool-based Cable compartment Tool-based Internal arc classification Designation of the internal arc classification IAC IAC class for: Wall-standing arrangement IAC AFL 40 kA, 1 s Free-standing arrangement IAC AFLR 40 kA, 1 s Type of accessibility A Switchgear in closed electrical service location, access “for authorized personnel only” according to IEC 62271‑200 – F Front – L Lateral – R Rear (for free-standing arrangement) Rated short-time withstand current 40 kA Rated duration of short-circuit 1 s

Classification of 8DA and 8DB switchgear according to IEEE Std C37.20.7TM-2007 Internal arc classification Designation of the internal arc classification IAC IAC class for: Wall-standing arrangement Type 1B 40 kA, 0.5 s Free-standing arrangement Type 2B 40 kA, 0.5 s Type of accessibility Switchgear in closed electrical service location, access “for authorized personnel only” according to IEEE Std C37.20.7™-2007 – Type 1B Front – Type 2B Front, lateral, rear (for free-standing arrangement) – Type BC Front with open low-voltage compartment Rated short-time withstand current 40 kA Rated duration of short-circuit 0.5 s

1) Corresponds to ”metal-clad“ according to former standard IEC 60298

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 13 Dimensions Front views, sections, floor openings, fixing points for 8DA10

Circuit breaker panel up to 3150 A 850 2350 HA35-2660d eps 275 380 380 600 1625

80 1145 80 320 45 70 600 405 320

45 210 1 2 3 4

Bus sectionalizer up to 3150 A 850 2350 HA35-2661d eps 275 380 380 600 600 1625

80 1145 80 320 45 70 600 405 320 140 600 405

45 45 210 1 2 3 4

14 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Maße Front views, sections, floor openings, fixing points for 8DA10

Disconnector panel up to 3150 A Cable connection panel up to 3150 A 850 850 2350 2350 HA35-2740c eps HA35-2741c eps 275 380 380 275 380 380 600 1625 600 1625

80 1145 80 320 80 1145 80 320 45 70 45 70 600 405 320 600 405 320

45 210 45 210 1 2 3 4 1 2 3 4

Metering panel Dummy panel 850 850 2350 2350 HA35-2664e eps HA35-2665c eps 275 380 380 275 380 380 600 1625 600 1625

80 1145 80 320 80 1145 80 320 45 70 45 70 600 405 320 600 405 320

45 210 45 210 1 2 3 4 1 2 3 4

Legend and footnotes for pages 14 and 15 1 Fixing hole for 26 mm × 45 mm 3 Floor opening for high-voltage cables 2 Base frame 4 Area for floor openings for control cables

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 15 16 Front views, sections,flooropenings,fixingpoints for8DB10 Dimensions Fixed-mounted circuit breaker switchgear types8DA and 8DB,upto 40.5kV, gas-insulated 2019 · SiemensHA35.11 U.S. ·January

HA35-2669c eps 2350 HA35-2667b eps 2350 Circuit breaker panel up to 2500 to up panel breaker Circuit Bus coupler up to 2500 to up coupler Bus 600 600

600 600 45 45 410 410 80 80 275 275 1 1 360 360

A 360 360 2 2

A 2185 2185 360 360 2665 2665 360 360 3 3 360 360 45 45 80 80 210 320 210 320 4 320 850 4 320 850 70 70 Fixed-mounted circuit breaker switchgear types8DA and 8DB,upto 40.5kV, gas-insulated 2019 ·SiemensHA35.11 U.S. ·January

HA35-2673d eps 2350 HA35-2668c eps 2350 Bus sectionalizer with panel connection up to 2500 A (busbar system 1 and 2) 1and system A(busbar 2500 to up connection panel with sectionalizer Bus 2) 1and system A(busbar 2500 to up sectionalizer Bus 600 600 600 600

600 600 600 45 45 45 410 410 410 80 80 275 275 1 1 360 360 360 360 2 2 2185 2185 360 360 Front views, sections,flooropenings,fixingpoints for8DB10 2665 2665 360 360 3 3 360 360 45 45 80 80 210 210 320 320 4 4 320 850 320 850 70 140 70 4 3 2 1 16 17 and pages for and footnotes Legend

for control cables for control openings floor for Area cables high-voltage Floor opening for frame Base 26 ×45 mm mm Fixing hole for Dimensions

17 Dimensions Front views, sections, floor openings, fixing points for für 8DB10

Bus sectionalizer up to 2500 A (busbar system 1) 850 2350 HA35-2674c eps 275 360 360 360 360 360 600 600 2665

80 2185 80 320 45 70 600 410 320 140 600 410

45 45 210 1 2 3 4 Bus sectionalizer up to 2500 A (busbar system 2) 850 2350 HA35-2675c eps 275 360 360 360 360 360 600 600 2665

80 2185 80 320 45 70 600 410 320 140 600 410

45 45 210 1 2 3 4

18 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Dimensions Front views, sections, floor openings, fixing points for 8DB10

Cable connection panel up 2500 A 850 2350 HA35-2748d eps 275 360 360 360 360 360 600 2665

80 2185 80 320 45 70 600 410 320

45 210 1 2 3 4

Dummy panel 850 2350 HA35-2672b eps 275 360 360 360 360 360 600 2665

80 2185 80 320 45 70 Legend and footnotes for pages 18 and 19 600 410 320 1 Fixing hole for 26 mm × 45 mm 2 Base frame 45 210 1 2 3 4 3 Floor opening for high-voltage cables 4 Area for floor openings for control cables

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 19 Dimensions Front views, sections, floor openings, fixing points for 8DB10 ANSI

Example: Circuit breaker panel with three-position disconnector at the feeder (option) 1200 3120 HA35-2749d eps 275 360 360 360 360 360 600 2665

80 2185 80 320 45 70 600 410 320

45 210 1 2 3 4 Example: Circuit breaker panel with disconnector bypass 1200 3120 HA35-2750d eps 275 360 360 360 360 360 600 2665

80 2185 80 320 45 70 600 410 320

45 210 1 2 3 4

20 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Fixed-mounted circuit breaker switchgear types8DA and 8DB,upto 40.5kV, gas-insulated 2019 ·SiemensHA35.11 U.S. ·January

HA35-2676d eps 2350 HA35-2677d eps 2350 Double-pole circuit breaker panel up to 2500 A 2500 to up panel breaker circuit Double-pole Single-pole circuit breaker panel up to 2500 to up panel breaker circuit Single-pole 600 600

600 600 45 45 405 405 1 80 80 275 275 1 2 385 3 2 865 45 765 380 80 1245 3 210 320 45 80 210 320 4 320 850 70

4 320 850

70 Front views, sections,flooropenings,fixingpoints for 8DA11/12

A 4 3 2 1 21 and 20 pages for and footnotes Legend

for control cables for control openings floor for Area cables high-voltage Floor opening for frame Base 26 ×45 mm mm Fixing hole for Dimensions

21 22 Single-busbar panels8DA10 Product range Fixed-mounted circuit breaker switchgear types8DA and 8DB,upto 40.5kV, gas-insulated 2019 · SiemensHA35.11 U.S. ·January HA35-2645a eps HA35-2643a eps Bus sectionalizer (2 panels)Bus sectionalizer Circuit breaker panel D C B

HA35-2644a eps Disconnector panel Disconnector D C – connector three-position dis with orwithout Voltage transformer cable connection) plugged orwith transformer (directly Plug-in voltage circuit breaker Vacuum detecting system Capacitive voltage Current transformer sectionalizer Top-mounted bus current transformer Zero-sequence or barconnection with inside-coneplug connectionPanel Surge arrester disconnector three-position with orwithout Busbar connection – Busbar disconnector Three-position earthing switch earthing make-proof and switchearthing

- Product range Single-busbar panels 8DA10

Metering panel Cable connection panel Three-position disconnector

Vacuum circuit breaker

Plug-in voltage transformer (directly plugged or with cable connection)

Voltage transformer with or without three-position disconnector

D HA35-2646 eps HA35-2647a eps Current transformer

Capacitive voltage detecting system

Bus sectionalizer (2 panels) Busbar – earthing switch and – make-proof earthing switch

Busbar connection with or without three-position disconnector

Panel connection with inside-cone plug or bar connection

B HA35-2648a eps

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 23 Product range Double-busbar panels 8DB10

Circuit breaker panel Bus coupler Three-position disconnector

Vacuum circuit breaker

Plug-in voltage transformer (directly plugged or with cable connection)

Voltage transformer with or without B three-position disconnector

Current transformer

Capacitive voltage detecting system

C Busbar D – earthing switch and – make-proof earthing switch

Busbar connection with or without three-position disconnector

Surge arrester HA35-2649a eps HA35-2650a eps

Panel connection with inside-cone plug or bar connection

Zero-sequence current transformer

Top-mounted bus sectionalizer

24 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Product range Double-busbar panels 8DB10

Metering panel Cable connection panel Three-position disconnector

Plug-in voltage transformer (directly plugged)

Voltage transformer with or without three-position disconnector HA35-2653a eps Current transformer

Capacitive voltage detecting system

Busbar – earthing switch and – make-proof earthing switch

Busbar connection with or without three-position

HA35-2652 eps disconnector

Panel connection with inside-cone plug or bar connection

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 25 Product range Double-busbar panels 8DB10

Bus sectionalizer (busbar system 1 and 2) Three-position disconnector

Vacuum circuit breaker

Voltage transformer with or without three-position disconnector

Current transformer

Capacitive voltage detecting system

Busbar – earthing switch and – make-proof earthing switch

B C D Busbar connection with or without three-position disconnector

B C D Panel connection

HA35-2656a eps with inside-cone plug or bar connection

Zero-sequence current transformer

26 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Product range Double-busbar panels 8DB10

Bus sectionalizer (busbar system 1) Three-position disconnector

Vacuum circuit breaker

Voltage transformer with or without three-position disconnector

Current transformer

B Capacitive voltage detecting system

Busbar – earthing switch and – make-proof earthing switch

Busbar connection with or without three-position disconnector HA35-2654a eps

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 27 Product range Double-busbar panels 8DB10

Bus sectionalizer (busbar system 2) Three-position disconnector

Vacuum circuit breaker

Voltage transformer with or without three-position disconnector

Current transformer

B Capacitive voltage detecting system

Busbar – earthing switch and – make-proof earthing switch

Busbar connection with or without three-position disconnector HA35-2655a eps

28 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Product range Double-busbar panels 8DB10

Bus sectionalizer (busbar system 1 and 2) Three-position disconnector

Vacuum circuit breaker

Voltage transformer with or without three-position disconnector

Current transformer

B Capacitive voltage detecting system

Busbar B – earthing switch and – make-proof earthing switch

Busbar connection with or without three-position disconnector HA35-2651b eps

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 29 Product range Double-busbar panels 8DB10

Bus sectionalizer (busbar system 1 and 2) Three-position disconnector

Voltage transformer with or without three-position disconnector

Current transformer

Capacitive voltage detecting system

B Busbar – earthing switch and – make-proof earthing switch

Busbar connection with or without three-position disconnector HA35-2659b eps

30 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Product range Single-pole and double-pole single-busbar panels 8DA11/12

Single-pole circuit breaker panel Double-pole circuit breaker panel Three-position disconnector

Vacuum circuit breaker

Plug-in voltage transformer (directly plugged or with cable connection)

Voltage transformer with or without three-position disconnector

Current transformer

Capacitive voltage detecting system

C C

D D Busbar

HA35-2657a eps – earthing switch and – make-proof earthing switch

Busbar connection with or without three-position disconnector

Surge arrester HA35-2658a eps

Panel connection with inside-cone plug or bar connection

Zero-sequence current transformer

Top-mounted bus sectionalizer

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 31 32 – – – • • Panel design – – – • – – – – – – – • • • • • • • • • • • • • • 1) • – – • • system Insulating Basic paneldesign Design

Fixed-mounted circuit breaker switchgear types8DA and 8DB,upto 40.5kV, gas-insulated 2019 · SiemensHA35.11 U.S. ·January – – – – – – – – – – – – – – –

90 °C Gas leakage rate: <0.1 leakage Gas pressure:Bursting ≥600kPa ≥ 300kPa pressureOperating disc: ofbursting with metallic partitions metal-enclosed, Single-pole Factory-assembled, type-tested at 20 (relativeelectrical ratings pressure gear housing dependentonthe Design temperature ofthe SF Design pressure: 190kPa 70 Rated functionallevel (relative): = 22,800 = Potential) (Global Warming GWP tor) Electronegative (high-quality insula Heavier than air Chemically neutral Non-inflammable Odorless andcolorless Non-toxic Pressure ofthe SF Features ofSF ing to ISO9001and14001. management systemmental accord quality andenvironand certified Standardized production processes removable, plug-inbuswires compartment Low-voltage “light basic”(lightgray RAL7035) end walls powder-coated incolor frontSubframe, cover, rear cover and ments located outsidethe gas compart transformersInstrument removable, arrangement Wall-standing orfree-standing plug-in system according to EN Cable connectionwith inside-cone vacuum circuit breaker Make-proof by meansofthe earthing disconnecting andearthing Three-position disconnector for Vacuum circuit breaker compartment O enclosure O Degree ofprotection environment (IEC Maintenance-free inanindoor behind the other Switchpanel polesarranged one aluminum alloy housings madeofcorrosion-resistant Hermetically bolted switchgear SF Switchgear housingfilledwith IP 3XD for the switchgear enclosure switchgear 3XD the for IP circuit the primary IP 65for of allhigh-voltage parts former standard IEC 60298 IEC standard former to according ”metal-clad“ to Corresponds p p 6

tion: tion: kPa tokPa 120kPa

gas

°C): IP41for the low-voltage IP31Dfor the switchgear 6

gas:

6 62271 gas inthe switch

% per year.% per ‑ 1)

50181 gas:

- -

- - - Panel design 6 5 4 3 2 1 6 5 3 4 2 1 Panel for double-busbar switchgear Panel for double-busbar 8DB10 switchgear Panel for single-busbar 8DA10

(examples)

HA35-2682d eps 2 1 8DB10 Legend for 8DA10 and 6 5 4 3

mechanism Circuit breaker operating gas compartments monitoring offeeder Manometer for gas circuit breaker disconnector and for three-position position indicators as well asmechanical position disconnector, and interlock for three- mechanismOperating protection e.g. multifunction Electronic control board, Voltage detecting system compartment Low-voltage

HA35-2685d eps

Design Basic panel design

Single-pole and double-pole design for AC traction power supply Panel design (examples)

Typical uses • Single-pole and double-pole panels 8DA11/12 for the supply of over- Legend for 8DA11 and 8DA12 head contact line sections in AC 1 Low-voltage traction power supply systems 1 compartment • Double-pole panels 8DA12 for ap- 2 Electronic control board, plication in traction power supply e.g. multifunction systems with autotransformers, 2 protection e.g. for high-speed railway traffic. 3 Operating mechanism and interlock for three- 3 Panel design position disconnector, • Panel design based on standard as well as mechanical version of single-busbar switchgear 4 position indicators 8DA10. for three-position disconnector and 8DA11 5 circuit breaker Single-pole switchgear panel for 4 Manometer for gas traction power supply. monitoring of feeder gas compartments 8DA12 5 Circuit breaker operating 6 Double-pole switchgear panel for mechanism traction power supply. 6 Voltage detecting system HA35-2684d eps

8DA11 Single-pole switchgear panel for traction power supply

6 HA35-2683d eps

8DA12 Double-pole switchgear panel for traction power supply

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 33 Design Gas compartment scheme of 8DA10

Gas compartment scheme • Sealed pressure system (according Arrangement of gas compartments in 8DA10 to IEC 62271‑1) • No refilling required throughout the entire service life • Gas compartments distributed to several areas • Simple, visual check of the ready- for-service indicator by red/green 3 2 1 indication areas • Indication of gas pressure also guaranteed without auxiliary 4 4 4 voltage supply • Gas pressure manometers arranged at the switchgear front • Gas filling equipment with non Bushing return valve arranged at the switch- pervious to gas gear front beside the associated Gas-tight gas pressure manometer HA35-2718d eps bushing • Gas pressure manometers with two Single-busbar panel 8DA10 signaling contacts for “gas pressure too low / gas pressure too high” indication • Option: Gas pressure manometers with three signaling contacts for “gas pressure too low / very low” and “gas pressure too high” indica- 5 tion • Option: Gas pressure manometers 1, 2, 3 1, 2, 3 1, 2, 3 with temperature and pressure compensation.

Example: Gas quantity circuit breaker panel (36 kV, 40 kA, 1250 A, cable 4 connection 1 × plug size S2) • 8DA10: SF6 = 2.5 kg CO2e = 57 t • 8DB10: HA35-2720a eps SF6 = 4.5 kg CO2e = 105 t. Single-busbar switchgear 8DA10

Legend for 8DA10 1 Busbar L1 (manometer B11) 2 Busbar L2 (manometer B12) 3 Busbar L3 (manometer B13) 4 Circuit breaker L1, L2, L3 (manometer B0) 5 Top-mounted bus sectionalizer L1, L2, L3 (manometer B15)

34 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Design Gas compartment scheme of 8DB10

Arrangement of gas compartments in 8DB10

6 3 5 2 4 1

8 7 8 7 8 7

9 9 9

Bushing pervious to gas

Gas-tight

HA35-2719b eps bushing Double-busbar panel 8DB10

11 10

4, 5, 6 4, 5, 6 4, 5, 6 1, 2, 3 1, 2, 3 1, 2, 3

9 HA35-2721c eps

Double-busbar switchgear 8DB10

Legend for 8DB10 1 Busbar system 1, L1 (manometer B11) 2 Busbar system 1, L2 (manometer B12) 3 Busbar system 1, L3 (manometer B13) 4 Busbar system 2, L1 (manometer B21) 5 Busbar system 2, L2 (manometer B22) 6 Busbar system 2, L3 (manometer B23) 7 Three-position disconnector, busbar system 1, L1, L2, L3 (manometer B1) 8 Disconnector, busbar system 2, L1, L2, L3 (manometer B2) 9 Circuit breaker L1, L2, L3 (manometer B0) 10 Top-mounted bus sectionalizer, busbar system 1, L1, L2, L3 (manometer B15) 11 Top-mounted bus sectionalizer, busbar system 2, L1, L2, L3 (manometer B25)

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 35 Components Vacuum circuit breaker

Features • According to IEC 62271‑100 (for standards, see page 58) • Application in hermetically bolted switchgear housings in conformity with the system • Vacuum interrupter in gas-filled switchgear housing • Maintenance-free for indoor installation according to IEC 62271-1 • Individual secondary equipment R-HA35-138.tif • A metal bellows is used for gasketless separation between the gas insulation and the vacuum (already used with suc- cess for over 5 million vacuum interrupters). Trip-free mechanism The vacuum circuit breaker is fitted with a trip-free mechanism according to IEC 62271-100. Switching duties and operating mechanisms 14

The switching duties of the vacuum circuit breaker are 1 dependent, among other factors, on its type of operating 13 2 mechanism.

Motor operating mechanism 12 3 • Motor-operating stored-energy mechanism 11 4 ––For auto-reclosing (K) 10 ––For synchronization and rapid load transfer (U) 5 Further operating mechanism features • Located outside the switchgear housings in the operat- 9 ing mechanism box and behind the control board 6 • Stored-energy spring mechanism for 10,000 operating 8 cycles 7 • Optional: Stored-energy spring mechanism for 30,000 operating cycles. Circuit breaker operating mechanism 3AH49 for 8DA and 8DB Operating mechanism functions Motor operating mechanism 1) (M1 *) In the case of motor operating mechanism, the closing 1 ON pushbutton spring is charged by means of a motor and latched in the 2 Auxiliary switch S1 charged position (“spring charged” indication is visible). 3 Closing coil for CLOSE Closing is effected either by means of an ON pushbutton or 4 Tripping coil for OPEN a closing solenoid. The closing spring is recharged automati- 5 OFF pushbutton cally (for auto-reclosing). 6 Operating shaft for circuit breaker 7 Opening spring Endurance class of circuit breaker 8 Operations counter 9 Position indicator for circuit breaker Function Class Standard Property of 8DA and 8DB 10 “Closing spring charged / not charged” indicator BREAKING M2 IEC 62271-100 10,000 times mechanically 11 Auxiliary switch without maintenance 12 Closing spring E2 IEC 62271-100 10,000 times rated normal cur- 13 Gear with hand crank coupling rent without maintenance 14 Rating plate 50 times short-circuit breaking current without maintenance C2 IEC 62271-100 Very low probability of restrikes Operating times Closing time Closing solenoid < 95 ms Opening time 1st shunt release < 65 ms Abbreviations for switching duties: 2nd shunt release < 55 ms U = Synchronization and rapid load transfer Undervoltage release < 55 ms K = Auto-reclosing Arcing time at 50 Hz < 15 ms 1) Motor rating at 24 V to 250 V DC: max. 500 W at 60 Hz < 12 ms 110 V and 240 V AC: max. 650 VA Break time at 50 Hz 1st shunt release < 80 ms * Item designation 2nd shunt release < 70 ms For further technical data and description of Undervoltage release < 70 ms typical applications, please refer also to Catalog HG 11.04 Dead time 300 ms “3AH4 Vacuum Circuit-Breakers” Total charging time < 15 s

36 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Components Vacuum circuit breaker

Secondary equipment The scope of the secondary equipment of the vacuum cir- Operating cycle diagram cuit breaker depends on the type of application and offers a wide range of possible variations, allowing almost every requirement to be satisfied. 50 000 30 000 Closing solenoid 20 000 cles • Type 3AY15 10 (Y9 *) 10 000 HA35-2678_en eps • For electrical closing. 5000

Shunt releases 2000 • Types: 1000 ––Standard: 3AY15 10 (Y1 *) 500

––Option: 3AX11 01 (Y2 *), with energy store Permissible operating cy • Tripping by protection relay or electrical actuation. 200

Undervoltage release 100 • Type 3AX11 03 (Y7 *) 50 1 2 3 • Comprising: 20 ––Energy store and unlatching mechanism 10 ––Electromagnetic system, which is permanently connect- 12 5 10 kA 20 31.5 50 ed to voltage while the vacuum circuit breaker is closed; 25 40 tripping is initiated when this voltage drops Breaking current (r.m.s. value) • Connection to voltage transformers possible. Anti-pumping Examples Electrical data (curve 1) • Function: If constant CLOSE and OPEN commands are Rated short-circuit breaking current 25 kA present at the vacuum circuit breaker at the same time, Rated normal current 1250 A the vacuum circuit breaker will return to the open posi- Electrical data (curve 2) tion after closing. It remains in this position until a new Rated short-circuit breaking current 31.5 kA CLOSE command is given. In this manner, continuous Rated normal current 2000 A closing and opening (= pumping) is avoided. Electrical data (curve 3) Circuit breaker tripping signal Rated short-circuit breaking current 40 kA Rated normal current 2500 A • For electrical signaling (as pulse > 10 ms), e.g. to remote Rated operating sequences control systems, in the case of automatic tripping Rapid load transfer (U): O-t-CO-t‘-CO (t = 0.3 s, t‘ = 3 min) (e.g. protection) Auto-reclosing (K): O-t-CO-t‘-CO (t = 0.3 s, t‘ = 3 min) • Via limit switch (S6 *) and cutout switch (S7 *). Auto-reclosing (K): O-t-CO-t‘-CO (t = 0.3 s, t‘ = 15 s)

Varistor module O = OPEN operation • To limit overvoltages to approx. 500 V for protection CO = CLOSE operation with subsequent OPEN operation at devices (when inductive components are mounted in the the shortest internal close-open time of the vacuum circuit breaker vacuum circuit breaker) • For auxiliary voltages ≥ 60 V DC.

Auxiliary switch Possible release combinations • Type 3SV9 (S1 *) Release • Standard: Up to 22 NO + 22 NC. 1 2 3 4 5 Position switch 1st shunt release type type 3AY15 10 • • • • • nd • Type 3SE4 (S4 *) 2 shunt release type type 3AX11 01 – • • – • 3rd shunt release type 3AX11 01 – – • – – • For signaling “closing spring charged“. Undervoltage release type 3AX11 03 – – – • • Mechanical interlock • Mechanical interlocking to the three-position disconnector • During operation of the three-position disconnector, the vacuum circuit breaker cannot be operated.

Abbreviations: NO = normally open contact, NC = normally closed contact * Item designation

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 37 Components Three-position disconnector

Features • Rated normal currents up to 3150 A Position indicators of 8DA10 • 2000 operating cycles for the disconnector for three-position disconnector (higher operating cycles on request) and vacuum circuit breaker • 1000 operating cycles for the earthing switch (higher operating cycles on request) • Option: Up to 2000 operating cycles for the earthing switch -Q1 • Operating shaft and contact blades with common center of rotation and reliable switch position up to the operating front of the panel -Q0 • Gas-tight bushings separate the busbar and circuit breaker housings underneath the busbar disconnector contacts HA35-2723b eps • Cable connection and circuit breaker housings can be Feeder OPEN removed without interrupting busbar operation • Maintenance-free. Switch positions • CLOSED, OPEN, EARTHED or READY-TO-EARTH -Q1 • CLOSED: Contact blades connected with the busbar: Main circuit closed between busbar and circuit breaker • OPEN: Main circuit open between busbar and circuit -Q0 breaker: Test voltages for isolating distances are withstood • READY-TO-EARTH: Contact blades connected with the HA35-2724b eps earthing contact Feeder CLOSED • EARTHED: Feeder earthed and short-circuited by closing the circuit breaker. Operating mechanism -Q1 • Only permissible operations possible due to logical mechanical interlocks • Mechanically coupled position indicator -Q0 • Separate operating shafts for the “DISCONNECTING”, “EARTHING” and “READY-TO-EARTH” functions

• With manual operating mechanism HA35-2726b eps • Option: With motor operating mechanism Feeder READY-TO-EARTH Motor rating at 24 V to 250 V DC: max. 100 W 110 V to 240 V AC: max. 130 VA • Same sense of rotation for the switching operations of the “CLOSE” or “OPEN” functions. -Q1

Endurance class of three-position disconnector -Q0 Function Class Standard Property of 8DA and 8DB DISCONNECTING M1 IEC 62271-102 2000 times mechanically without maintenance HA35-2725b eps READY-TO-EARTH 1000 times mechanically Feeder EARTHED without maintenance EARTHING E2 1) IEC 62271-102 50 times rated short-circuit

making current Ima without maintenance

Endurance class of make-proof earthing switch Function Class Standard Property of 8DA and 8DB EARTHING E1 IEC 62271-102 1000 times mechanically without maintenance 2 times rated short-circuit

making current Ima without maintenance

1) By closing the circuit breaker

38 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Components Three-position disconnector

Interlocks Position indicators of 8DB10 • Selection of permissible switching for three-position disconnector operations by means of a control and vacuum circuit breaker gate with mechanically interlocked vacuum circuit breaker • Selection of permissible switching operations in double-busbar -Q1 -Q2 switchgear additionally by means of a control gate with mechanically

interlocked vacuum circuit breaker -Q0 • Corresponding operating shafts are not released at the operating front

until they have been pre-selected HA35-2727b eps with the control gate Feeder OPEN • Operating lever cannot be removed until switching operation has been completed -Q1 -Q2 • Circuit breaker cannot be closed until the control gate is in neutral position again -Q0 • Option: Switchgear interlocking system with electromechanical

interlocks (mechanical interlocking HA35-2728b eps for manual operation remains). Feeder busbar system 1 CLOSED

-Q1 -Q2

-Q0 HA35-2729b eps Feeder busbar system 2 CLOSED

-Q1 -Q2

-Q0 HA35-2730b eps Feeder READY-TO-EARTH

-Q1 -Q2

-Q0 HA35-2731b eps Feeder EARTHED

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 39 Components Control board

Features • Mechanical control board below the Single-busbar panels 8DA10 low-voltage compartment 10 A • Actuations directly at the operating 1 2 mechanisms 4 • Mechanical position indicators 3 integrated in the switchgear front 5 • Unambiguous assignment of 6 actuating openings and control elements to the corresponding B position indicators

• Ergonomic height of all control ele- 11 ments. 12 Interlocking 15 13 • Panel-internal mechanical interlocks 16 14 • Operation of three-position disconnector (CLOSED, OPEN, EARTHED or 17 READY-TO-EARTH) R-HA35-139.tif • Vacuum circuit breaker interlocked Double-busbar panels 8DB10 mechanically • Control gate for opening the actuating openings (with single-busbar A systems it can only be operated if 1 10 the interrogation lever (4) is pushed downwards) 5 7 3 8 • Actuating openings (2, 3 and 8) 6 cannot be opened as long as the 2 vacuum circuit breaker is in CLOSED 9 position • Operating lever can be inserted B when the actuating openings are 11 open • Operating lever cannot be removed 12 before the definite end position 15 13 of the disconnecting or earthing 16 14 function is reached 17 • Feeder de-earthing is secured by the

vacuum circuit breaker R-HA35-140.tif ––electrically via the auxiliary switch A Operating mechanism of the three-position disconnector ––mechanically through the lever (14) 1 CLOSED/OPEN position indicator for disconnecting function of three-position disconnector of the mechanical circuit breaker 2 Actuating opening for earthing function tripping block. 3 Actuating opening for disconnector function 4 Interrogation lever 5 CLOSED/OPEN position indicator for earthing function of three-position disconnector 6 CLOSED/OPEN position indicator for vacuum circuit breaker 7 CLOSED/OPEN position indicator for 2nd disconnector in double-busbar systems 8 Actuating opening for 2nd disconnector in double-busbar systems 9 Selector gate for selecting the three-position disconnector or the disconnector in double-busbar systems 10 Control gate for opening the actuating openings (with single-busbar systems it can only be operated if the interrogation lever (4) is pushed downwards) B Operating mechanism of the vacuum circuit breaker 11 Mechanical ON pushbutton for vacuum circuit breaker 12 Actuating opening for manual charging of the circuit breaker operating spring 13 Mechanical OFF pushbutton for vacuum circuit breaker 14 Lever for locking the vacuum circuit breaker against “de-earthing” 15 “Circuit breaker spring charged” indicator 16 CLOSED/OPEN position indicator for vacuum circuit breaker 17 Operations counter for vacuum circuit breaker

40 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 • • • • • components: busbar following the with equipped be can 8DB switchgear busbar switchgear 8DA and double- of single-busbar busbars The components of busbar Design • • • • • • Busbar features

and space requirements. space and additional switchgear panels without sections busbar into two distribution for izer sectional bus Top-mounted IEC to according system detecting voltage Capacitive switch earthing make-proof or switch earthing Busbar disconnector three-position without or with connection, bar gas-insulated or solid-insulated with or plug, cable with connection Busbar transformers current Busbar disconnector three-position without or with transformers voltage busbar metal-enclosed Plug-in, busbar). (twin housings busbar intwo connection bar copper Awith 5000 housing busbar inone connection bar copper Awith to4000 Up assembly busbar plete com the throughout medium insulating of the alteration No adapters or without connections plug-in gas insulation Continuous aluminum alloy of corrosion-resistant made housings switchgear modular enclosureSingle-pole with

61243 Fixed-mounted circuit breaker switchgear types8DA and 8DB,upto 40.5kV, gas-insulated 2019 ·SiemensHA35.11 U.S. ·January ‑ 5 or IEC 61958 IEC 5 or

- -

HA35-2688a eps Busbar connectionwith cableplug Top-mounted bus sectionalizer size S2orS3 Busbar components Example 8DB10 (twin busbar) Busbar version 5000A HA35-2693a eps HA35-2689a eps

HA35-2686a eps versions Busbar Example 8DA10 Busbar version upto 3150A

Example 8DA10 Busbar version 4000A HA35-2687a eps HA35-2757 eps Example 8DA10 (twin busbar) Busbar version 5000A insulated orgas-insulated bar Busbar connectionwith solid- HA35-2690a eps Busbar, busbarcomponents Components

41 42 • • Installation • • • • • • • • Features Current transformers Components

Fixed-mounted circuit breaker switchgear types8DA and 8DB,upto 40.5kV, gas-insulated 2019 · SiemensHA35.11 U.S. ·January (switchgear housing). enclosureprimary the outside Arranged insulated. Cast-resin panel of the ment compart low-voltage the in strip of aterminal means by connection Secondary Climate-independent Certifiable type Inductive E class Insulation design) (due to parts cast-resin stressed of dielectrically Free transformers, single-pole current as ring-core Designed to IEC According

61869

‑ 2 -

Electrical data Electrical * Further electrical data onrequest* Further electrical data frequency Rated (winding test) withstand voltagefrequency power- short-duration Rated voltage Operating Designation Rated current current Rated 3s max. current, short-time thermal Rated thermal current Rated continuous

Current transformer installation Current transformers HA35-2756a eps HA35-2694b eps

secondary primary dynamic

E C 50 3 kV kV 0.8 max. 4MC4 Type max. 40 kA 40 max. (primary) current rated 1.2 × max. 1 A and 5A 1 Aand 3150 A Ato 40 unlimited

60 Hz 60 (basic scheme)

B (secondary) Multiratio Designation Insulation class Insulation air temperature ambient Permissible Protection core Measuring core Measuring current: primary rated to according data Core B E D C HA35-2695b eps

(type 4MC4_40) Busbar current transformer (type 4MC4_10) Feeder current transformer (type 4MC4_90) Feeder current transformer and buscoupler(type4MC4_40) Current transformer inbussectionalizer

factor Overcurrent Class Rating factor Overcurrent Class Rating

D C

200 A–100 200 4MC4 Type E °C 60 max. 10 30 to 105 Por P VA VA2.5 30 to 10 5, FS FS 1 to 0.2 VA VA2.5 30 to 3cores max. 1575 A 1575 3150 to up A–

Components Voltage transformers

Features • According to IEC 61869‑3 Voltage transformers • Single-pole, plug-in design • Connection system with 3 plug-in contact according 1 to EN 50181 • Inductive type • Safe-to-touch due to metal enclosure • Certifiable • Climate-independent • Secondary connection by means of plugs in the low- voltage compartment of the panel • Cast-resin insulated.

Installation • Arranged outside the primary enclosure (switch- 4 gear housing).

Mounting locations 2 • On the busbar HA35-2732c eps • At the panel connection HA35-2733b eps housing. Voltage transformer installation (basic scheme) Voltage transformer types Busbar voltage transformers 1 Busbar voltage transformer 4MU4 3 Busbar voltage transformer 4MU4 with 4MT3 and 4MU4 2 Feeder voltage transformer 4MT7 three-position disconnector • Pluggable on the busbar with (connection at panel connection 4 Feeder voltage transformer 4MU3 plug-in system according to housing) (not in the panel, connection via flex- EN 50181 ible cable with plug size S2 at the panel • No separate metering panel connection housing, and metal-enclosed required voltage transformer) • Option: Three-position disconnector for busbar voltage transformer CLOSED – OPEN – EARTHED • Option 4MU4: Repeat test at 80 % of the rated short- Electrical data (maximum values) duration power-frequency Designation 4MT3 4MU4 4MT7 4MU3 withstand voltage possible Rated voltage kV 24.0 40.5 40.5 40.5 with mounted voltage trans- Rated short-duration 65 95 95 95 former. power-frequency withstand voltage kV Feeder voltage transformers Rated lightning-impulse 125 200 200 200 4MT7 and 4MU3 withstand voltage kV • Pluggable at the feeder with Rated voltage factor Un /8h = 1.9 Un /8h = 1.9 Un /8h = 1.9 Un /8h = 1.9 plug-in system according to Un/continuous Un/continuous Un/continuous Un/continuous = 1.2 = 1.2 = 1.2 = 1.2 EN 50181 Standard IEC IEC IEC IEC • Connection of 4MT7 directly GOST GOST GOST GOST at the panel connection GB GB GB GB housing • Connection of 4MU3 via flexible cable with plug size S2 at the panel connection housing, and metal-enclosed voltage transformer.

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 43 Components Panel connection

Features Panel connection of 8DA10, 8DB10 and 8DA11/12 for cable plugs and bar systems • Bushings for plugs with inside-cone plug-in system according to EN 50181 • Inside-cone plug-in system for plug sizes 2, 3 and 4 • Single and multiple connec- 1 1 1 tions possible per phase 2 2 2 • Connection of several cables with different plug sizes pos-

sible per phase h h h • Connection of solid-insulated HA35-2696a eps HA35-2701a eps or gas-insulated bar possible HA35-2697c eps • Connection of 4MT7 voltage transformer plugged in at the panel connection housing version 3 • Connection of 4MU3 voltage transformer via flexible cable Version 1 Version 2 Version 3 and plug size 2 at the panel connection housing S2 S3 S2 S3 4MT7 Solid- • For rated normal currents up insulated to 3150 A. bar con- Surge arresters nection 1 1 1 1 – – • Pluggable via inside-cone 2 – – – plug-in system size 2 or 3 3 – – – • Surge arresters recommended – 2 – – if, at the same time, – 3 – – ––the cable system is directly 1 2 – – connected to the overhead 1 – 1 – line, 2 – 1 – ––the protection zone of the – 1 1 – surge arrester at the end – 2 1 – tower of the overhead line 1 1 1 – does not cover the switch- – – 1 1 gear. 1 – – 1 2 1 – –

Switch- Rated normal Standard High gear current Connection height of panel connection versions (mm) Connection height (h) of panel connection versions (mm) subframe subframe type [A] 8DA10 X 320 240 275 240.5 222 219 -15 290 327 8DA11 up to 3150 8DA12 X 540 460 495 460.5 442 439 205 510 547

up to X 120 40 75 40.5 22 19 -215 90 127 8DB10 1) 2500 X 540 460 495 460.5 442 439 205 510 547

Legend 1 Panel connection housing 2 Subframe h Connection height of panel connection versions

1) 3150 A on request

44 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Components Panel connection

Panel connection of 8DA10, 8DB10 and 8DA11/12 for cable plugs and bar systems

1 1 1 1

2 2 2 2 h h h h HA35-2705b eps HA35-2702a eps HA35-2706b eps HA35-2703a eps

Version 4 Version 5 Version 6 Version 7

S2 S3 S2 S3 S4 Solid-insulated Solid-insulated Gas-insulated bar connection bar connection bar connection

4 – – – – 1 1 1 5 – – 1 – 1 6 – – 2 – 1 – 4 – – 1 1 1 3 – 1 1 1 1 4 – – – 2 2 2 – – 2 1 2 3 – 3 1 – 3 2 – 4 1 – 2 – 1 – 1 1 – 2 1 1 1 1

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 45 Components Panel connection (commercially available cable plugs and bar connections)

Busbar and panel connection (commercially available cable plugs)

Cable type Cable sealing end Remark Make Type Size Diameter across Conductor cable insulation cross- mm section mm2 Thermoplastic-insulated cables ≤ 12 kV according to IEC 60502-2 Single-core cable or nkt cables CPI 2 2 12.7 - 33.6 25 - 300 Insulation material silicone rubber, with or without three-core cable, CPI 3 3 21.2 - 45.6 185 - 630 metal housing, installation without special tools PE and XLPE-insulated, N2YSY (Cu) and Pfisterer CONNEX 2 13.5 - 44.0 25 - 400 Insulation material silicone rubber, N2XSY (Cu) CONNEX 3 15.5 - 55.0 35 - 800 with metal housing or NA2YSY (Al) and CONNEX 4 33.0 - 78.5 95 - 1600 NA2XSY (Al) Südkabel SEIK 14 2 13.0 - 40.6 25 - 300 Insulation material silicone rubber, SEIK 15 3 19.3 - 50.6 120 - 630 with metal housing Tyco Electronics RPIT-321x 2 19.5 - 36.0 95 - 300 Insulation material silicone rubber, RPIT-331x 3 26.0 - 50.0 240 - 630 with metal housing Thermoplastic-insulated cables ≤ 24 kV according to IEC 60502‑2 Single-core cable or nkt cables CPI 2 2 17.0 - 40.0 25 - 300 Insulation material silicone rubber, with or without three-core cable, CPI 3 3 21.2 - 45.6 95 - 630 metal housing, installation without special tools PE and XLPE-insulated, N2YSY (Cu) and Pfisterer CONNEX 2 13.5 - 44.0 25 - 400 Insulation material silicone rubber, N2XSY (Cu) CONNEX 3 15.5 - 55.0 35 - 800 with metal housing or NA2YSY (Al) and CONNEX 4 33.0 - 78.5 95 - 1600 NA2XSY (Al) Südkabel SEIK 24 2 13.0 - 40.6 25 - 300 Insulation material silicone rubber, SEIK 25 3 19.3 - 50.6 50 - 630 with metal housing Tyco Electronics RPIT-521x 2 19.5 - 36.0 50 - 300 Insulation material silicone rubber, RPIT-531x 3 26.0 - 50.0 150 - 630 with metal housing Thermoplastic-insulated cables ≤ 40.5 kV according to IEC 60502‑2 Single-core cable or nkt cables CPI 2 2 17.0 - 40.0 25 - 300 Insulation material silicone rubber, with or without three-core cable, CPI 3 3 21.2 - 51.0 50 - 630 metal housing, installation without special tools PE and XLPE-insulated, Pfisterer CONNEX 2 13.5 - 44.0 25 - 400 Insulation material silicone rubber, N2YSY (Cu) and CONNEX 3 15.5 - 55.0 35 - 800 with metal housing N2XSY (Cu) CONNEX 4 33.0 - 78.5 95 - 1600 or Südkabel SEIK 34 2 13.0 - 40.6 35 - 300 Insulation material silicone rubber, NA2YSY (Al) and SEIK 35 3 19.3 - 50.6 50 - 630 with metal housing NA2XSY (Al) Tyco Electronics RPIT-621x 2 19.5 - 36.0 50 - 185 Insulation material silicone rubber, RPIT-631x 3 26.0 - 50.0 95 - 630 with metal housing

Busbar and panel connection (commercially available bar systems) Bar type Bar connection Remark Make Type Conductor material Max. rated current 1) Solid-insulated bar MGC Duresca DE Copper, aluminum 2500 A Outer sheath made of polyamide Moser Glaser Duresca DG Copper, aluminum 2500 A Outer sheath made of CrNi steel or aluminum Tefelen Preissinger ISOBUS MR Copper, aluminum 2500 A Outer sheath made of heat shrinkable tube Ritz SIS Copper, aluminum 2500 A Outer sheath made of heat shrinkable tube Gas-insulated bar MGC Moser Glaser Gaslink Copper 2500 A Aluminum housing Tefelen Preissinger ISOBUS MG Copper 2500 A Aluminum housing

Busbar and panel connection (commercially available dummy plugs) Accessories Dummy plug Remark Make Type Size Rated voltage Inside-cone plug-in nkt cables FPI 2 2 40.5 kV Insulation material silicone rubber, system according with metal housing to EN 50181 FPI 3 3 40.5 kV Pfisterer 2 40.5 kV Insulation material silicone rubber, Blindstecker 3 40.5 kV with metal housing 4 40.5 kV Südkabel ISIK 14/24/34 2 12 / 24 / 40.5 kV Insulation material silicone rubber, ISIK 15/25/35 3 12 / 24 / 40.5 kV with metal housing Tyco Electronics RPIC-2 2 40.5 kV Insulation material silicone rubber, RPIC-3 3 40.5 kV with metal housing 1) Higher values on request

46 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Components Indicating and measuring equipment

Voltage detecting systems according to IEC 61243‑5 or VDE 0682‑415, Indicators and detecting Symbols shown IEC 62271‑206 systems • To verify safe isolation from supply VOIS+, VOIS R+ CAPDIS-S1+ CAPDIS-S2+ • LRM detecting systems L1 L2 L3 L1 L2 L3 L1 L2 L3 –– with plug-in indicator –– with integrated indicator, type VOIS+, Plug-in A0 VOIS R+ voltage –– with integrated indicator, with integrated indicator A1 repeat test of the interface, with integrat- per phase at R-HA40-103 eps ed function test, type CAPDIS-S1+, the panel front A2 WEGA 1.2 C, WEGA 1.2 C Vario, with integrated signaling relay, type CAPDIS-S2+, A3 WEGA 2.2 C, WEGA 3. Plug-in voltage indicator A4 • Verification of safe isolation from supply phase by phase A5 • Indicator suitable for continuous operation R-HA35-104a.png A6 • Measuring system and voltage indicator can be tested, repeat test according to local specifications and standards A7 • Voltage indicator flashes if high voltage is present. A8

VOIS+, VOIS R+ HA35-2579c eps • Integrated display, without auxiliary Integrated voltage indicator CAPDIS S2+: The red and green LEDs show the power VOIS+, VOIS R+ state of the relay contacts • With indication “A1” to “A3” (see legend)  LED doesn‘t light up • Maintenance-free, repeat test according to  LED lights up local specifications and standards required U = Operating voltage • With integrated 3-phase LRM test socket for phase comparison A0 CAPDIS-S2+: Operating voltage • With integrated signaling relay not present (only VOIS R+) A1 Operating voltage present R-HA35-154a.png • Degree of protection IP54. R-HA35-155a.png A2 – Operating voltage not present Common features of CAPDIS-Sx+ – For CAPDIS-S2+: Auxiliary • Maintenance-free power not present • Integrated display, without auxiliary A3 Failure in phase L1, operating power voltage at L2 and L3 • Integrated repeat test of the interfaces (for CAPDIS-Sx+ also earth-fault (self-monitoring) indication) • With integrated function test (without Integrated voltage detecting A4 Voltage (not operating voltage) auxiliary power) by pressing the “Display- system CAPDIS-S1+, -S2+ Test” pushbutton present • Adjustable for different operating voltages A5 Indication “Test” passed (adjustable capacitance C2) (lights up briefly) • With integrated 3-phase LRM test socket A6 Indication “Test” not passed for phase comparison (lights up briefly) • With connectable signal-lead test L1 A7 Overvoltage present • With overvoltage monitoring and L2 (lights up permanently) signaling (1.2 times operating voltage) L3 A8 Indication “ERROR”, e.g.: in case • Degree of protection IP54. C1 of missing auxiliary voltage HA35-2537a eps CAPDIS-S1+ • Without auxiliary power ULE C2 U2 • With indication “A1” to “A7” (see legend) • Without ready-for-service monitoring • Without signaling relays (without auxiliary LRM system CAPDIS / VOIS contacts). plugged in installed CAPDIS-S2+ Voltage indication • With indication “A0” to “A8” (see legend) via capacitive voltage divider (principle) • Only by pressing the “Test” pushbutton: “ERROR” indication (A8), e.g. in case of – C1 Capacitance integrated into bushing missing auxiliary voltage – C2 Capacitance of the connection leads • With ready-for-service monitoring and the voltage indicator to earth (auxiliary power required) ULE = U N / 3 during rated operation in the • With integrated signaling relay for signals three-phase system (auxiliary power required). U2 = U A = Voltage at the capacitive interface of the switchgear or at the voltage indicator

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 47 Components Indicating and measuring equipment

WEGA 3 • Display indication Symbols shown

“A1” to “A5” WEGA 3 WEGA 1.2 C WEGA 2.2 C • Integrated repeat test of the WEGA 1.2 C Vario interface (self-monitoring) L1 L2 L3 L1 L2 L3 L1 L2 L3 R-HA35-WEGA-3.psd • With integrated 3-phase LRM A0 test socket for phase comparison. A1 WEGA 1.2 C, WEGA 1.2 C Vario A2 • Display indication “A1” to “A6” (see legend) A3 Integrated voltage indicator • Maintenance-free WEGA 3 • Integrated repeat test of the A4 interface (self-monitoring) A5 • With integrated function test (without auxiliary power) by A6 pressing the “Display Test”

pushbutton R-HA35-WEGA-1-2-C.psd A7

• With integrated 3-phase HA35-2845a eps LRM test socket for phase LC display gray: not illuminated comparison LC display white: illuminated • Without integrated signaling WEGA 2.2 C: The red and green LEDs show the relay state of the relay contacts  LED doesn‘t light up • Without auxiliary power Integrated voltage indicator WEGA 1.2 C, WEGA 1.2 C Vario  LED lights up • Degree of protection IP54 U = Operating voltage • Adjustable for different operating voltages A0 For WEGA 2.2 C: Operating voltage not present, (adjustable capacitance C2) auxiliary power present, (only for WEGA 1.2 C Vario). LCD illuminated WEGA 2.2 C A1 Operating voltage present R-HA35-WEGA-2-2-C.psd For WEGA 2.2 C: Auxiliary power • Display indication “A0” to present, LCD illuminated “A7” (see legend) A2 Operating voltage not present • Maintenance-free For WEGA 2.2 C: Auxiliary power • Integrated repeat test of the not present, LCD not illuminated interface (self-monitoring) A3 Failure in phase L1, operating voltage at L2 and L3 • With integrated function test Integrated voltage indicator WEGA 2.2 C For WEGA 2.2 C: Auxiliary power (without auxiliary power) by present, LCD illuminated pressing the “Display Test” A4 Voltage present, pushbutton current monitoring of coupling L1 section below limit value • With integrated 3-phase L2 For WEGA 2.2 C: Auxiliary power LRM test socket for phase L3 comparison C1 present, LCD illuminated HA35-2537a eps A5 Indication “Display-Test” passed • With two integrated For WEGA 2.2 C: Auxiliary power ULE C2 U2 signaling relays (auxiliary present, LCD illuminated power required) A6 Indication “Display Test” passed • Degree of protection IP54. LRM system WEGA For WEGA 2.2 C: plugged in installed Auxiliary power present Voltage indication A7 For WEGA 2.2 C: LCD for missing via capacitive voltage divider (principle) auxiliary voltage is not illuminated

– C1 Capacitance integrated into bushing – C2 Capacitance of the connection leads and the voltage indicator to earth

ULE = U N / 3 during rated operation in the three-phase system

U2 = U A = Voltage at the capacitive interface of the switchgear or at the voltage indicator

48 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Components Indicating and measuring equipment

Verification of correct terminal-phase connections Phase comparison test units according to IEC 61243‑5 or VDE 0682‑415 • Verification of correct terminal- phase connections possible by means of a phase comparison test unit (can be ordered R-HA40-089.tif separately) R-HA40-059 eps • Safe-to-touch handling of the phase comparison test unit by inserting it into the capacitive taps (socket pairs) of the switchgear.

Phase comparison test unit make Pfisterer, type EPV as combined test unit (HR and LRM) for: Phase comparison test unit – Voltage detection make Horstmann, type ORION 3.1 – Phase comparison as combined test unit (HR and LRM) for: – Interface test – Phase comparison – Integrated self-test – Interface testing at the switchgear – Indication via LED. – Voltage detection – Integrated self-test – Indication via LED and acoustic alarm – Phase sequence indicator. R-HA35-124.eps R-HA41-ORION-M-1.tif

Phase comparison test unit make Kries, type CAP-Phase as combined test unit (HR and LRM) for: – Voltage detection Phase comparison test unit – Repeat test make Horstmann, type ORION M1 – Phase comparison as combined test unit (HR and LRM) for: – Phase sequence test – Voltage detection – Self-test – Phase comparison The unit does not require a battery. – Interface testing at the switchgear – Integrated self-test – Indication via display and acoustic alarm – Phase sequence indication and status LED – Measurement of interface current up to 25µA – Measurement of phase angle from –180° to +180° – Measurement of harmonics up to 40th harmonic – Securing the measured values via PC software (ORION explorer) and USB.

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 49 50 • • • • • • Features indication Ready-for-service Indicating andmeasuring equipment Components • • • • • compartment Low-voltage Fixed-mounted circuit breaker switchgear types8DA and 8DB,upto 40.5kV, gas-insulated 2019 · SiemensHA35.11 U.S. ·January O indication high” too pressure /gas low too “gasfor pressure contacts signaling two with manometers pressure Gas manometer gas pressure associated the beside front switchgear the at arranged valve non-return with equipment filling Gas front arranged at the switchgear manometers pressure Gas supply voltage auxiliary without guaranteed also of pressure gas Indication areas indication red/green by indicator ready-for-service of the check visual Simple, O indication high” too pressure “gas and low” /very low too “gas for pressure contacts signaling three with meters O plugged in are cables control and wires bus removed, be can compartment Low-voltage the panel of part high-voltage the from safe-to-touch Partitioned equipment metering and measuring control, tection, of pro accommodation For compensation. pressure and temperature with meters stead of mm) 850 stead possible. (1200compartment in mm p p p tion: tion: tion: Gas pressure mano pressure Gas Gas pressure mano- pressure Gas Higher low-voltage - -

1 3 housings (arranged atthe panelfront) cuit breaker anddisconnector Gas pressure manometers (3) for cir single-busbar switchgear single-busbar of monitoring Gas (arranged atthe panelfront) for circuit breaker housing Gas pressure manometer (1) 8DA10 8DB10 switchgear double-busbar of monitoring Gas

R_HA35-136 tif R_HA35-135 tif lateral switchgear termination) busbar housings(arranged atthe Gas pressure manometers (4)for lateral switchgear termination) busbar housings(arranged atthe Gas pressure manometers (2)for R-HA35-148.tif

R-HA35-147.psd 4 2 Components Protection, control, measuring and monitoring equipment

Protecting, controlling and monitoring are the basic require- process, IT security, service and testability, or simple and safe ments placed on a complete bay controller across all technolo- operability of the devices and tools. gy generations. The properties the user expects from modern On the following pages you will find functional descriptions bay controllers are: multifunctionality, reliability, safety and for some selected devices. The low-voltage compartment can communication capability. accommodate all customary protection, control, measuring The increasing integration of many functions in one multi- and monitoring equipment available on the market: functional device leads to an optimally supported engineering

Overview of digital protection devices

Main function SIPROTEC 5 SIPROTEC SIPROTEC 4 Reyrolle Compact Overcurrent and feeder protection Overcurrent protection with PMU1) and control 7SJ82 / 85 7SJ80 / 81 7SJ61/62/63/64/66 7SR10/11/12/21/22 Self powered overcurrent protection 7SJ45 7SR45 Line protection Distance protection with PMU1) and control 7SA82/86/87 7SA61/63/64 Line differential protection with PMU1) and control 7SD82/86/87 7SD80 7SD610, 7SD5 7SR18 Solkor Combined line differential and distance protection with PMU1) 7SL82/86/87 7SD5 and control Breaker management with PMU1) and control 7VK87 7VK61 Overcurrent protection for lines with PMU1) 7SJ86 Transformer differential protection Transformer differential protection with PMU1), control and 7UT82/85/86/87 7UT612 / 613 / 63 7SR242 Duobias monitoring Motor- and generator protection Motor protection with PMU1) and control 7SK82 / 85 7SK80 / 81 7SJ61/62/63/64/66 7SR105 Argus, 7SR17 Argus Generator protection with PMU1) and control 7UM85 7UM61 / 62 Busbar differential protection Centralized busbar differential protection 7SS85 7SS52 Bay controller Bay controller for control/interlocking tasks with PMU1), 6MD85/ 86 6MD63 / 66 monitoring and protection functions1) Fault recorder Fault recorder, fault recorder with power quality recordings 7KE85 and fault recorder with PMU Voltage and frequency protection Applicable for system decoupling, load shedding 7RW80 7SR158 Argus and load restoration Synchronizing Synchronizing 7VE61/ 63 7SR157 Argus Distribution automation Protection and automation for overhead lines 7SC80 7SR224 Argus Capacitor bank protection Capacitor bank protection 7SJ82 / 85 7SR191 Capa High impedance protection High impedance protection 7SR23 DAD High speed busbar transfer High speed busbar transfer 7VU68

1) Optional for SIPROTEC 5

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 51 Components Protection, control, measuring and monitoring equipment

SIPROTEC 5 device series • Powerful automation with graphical CFC (Continuous Function Chart) • Secure serial protection data communication, also over large distances and all available physical media (fiber- optic cable, 2-wire connections and communication networks) • Recognition of static and transient earth faults (passing contact function in resonant-earthed and isolated systems) • Measurement of operational values • Phasor Measurement Unit (PMU) for synchrophasor measured values and IEEE C37.118 protocol • Powerful fault recording

• Control of switching devices. R-HA35-177.tif R-HA35-178.tif Overcurrent protection device SIPROTEC 7SJ82 • Directional and non-directional time-overcurrent protection SIPROTEC 7SJ82 2 3 with additional functions • Time optimization of the tripping times by directional comparison and protection data communication • Frequency protection and rate-of-frequency-change protection for load shedding applications • Overvoltage and undervoltage protection in all required variations • Power protection, configurable as active or reactive power protection • Control, synchrocheck and system interlocking • Firmly integrated electrical Ethernet port J for DIGSI • Complete IEC 61850 (reporting and GOOSE) via integrated port J • Two optional, pluggable communication modules usable for different and redundant protocols (IEC 61850, R-HA35-180.tif IEC 60870‑5-103, DNP3 (serial+TCP), Modbus RTU Slave, R-HA35-179.tif protection data communication). 1

Distance protection SIPROTEC 7SA86 SIPROTEC 7SA86 2 3 • Line protection for all voltage levels with 3-pole tripping • Very short tripping time • Selective protection of overhead lines and cables with single- and multi-ended infeeds • Time-graded backup protection to differential protection relays • Suitable for radial, ring-shaped, or any type of meshed systems of any voltage level with earthed, resonant- earthed or isolated neutral point • Main protection function: 6-system distance protection • Detection of current transformer saturation for fast tripping with high accuracy at the same time. Differential protection SIPROTEC 7SD86 R-HA35-180.tif • Line protection for all voltage levels with 3-pole tripping R-HA35-179.tif • Phase-selective protection of overhead lines and cables with single- and multi-ended infeeds of all lengths with 1 up to 6 line ends SIPROTEC 7SD86 2 3 • Transformers and shunt reactors within the protection zone are possible • Suitable for radial, ring-shaped, or any type of meshed 1 Modularly expandable systems of any voltage level with earthed, resonant- 2 Pluggable and retrofittable earthed or isolated neutral point communication ports • Protection of lines with capacitive series compensation 3 Pluggable current and voltage • Directional backup protection and various additional terminal blocks functions.

52 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Components Protection, control, measuring and monitoring equipment

Transformer differential protection SIPROTEC 7UT85 • Transformer differential protection for two-winding transformers with versatile additional protection functions • Universal utilization of the permissible measuring points • Flexible adjustment to the transformer vector group, controlling of making and overexcitation processes, secure performance in case of current transformer saturation with different saturation degrees. • Protection of standard power transformers and auto-transformers • Increased sensitivity in case of earth short-circuits close to the neutral point by means of a separate earth-fault differential protection 1 • Additional current and voltage inputs can be provided for standard protection functions such as overcurrent, voltage, frequency, etc. R-HA35-181.tif • In the standard version, two communication modules SIPROTEC 7UT85 can be plugged in, and different protocols can be used (IEC 61850, IEC 60870‑5-103, DNP3 (serial, TCP), Modbus RTU Slave). Digital fault recorder SIPROTEC 7KE85 • Fast-scan recorder • Up to 2 slow scan recorders • Up to 5 continuous recorders • Usable as Phasor Measurement Unit (PMU) according to IEEE C37.118 Standard • Transfer of recordings and triggering via IEC 61850 • Variable sampling rates programmable between 1 kHz – 16 kHz 1 • No-loss data compression • Time synchronization via IRIG-B, DCF77 and SNTP

• Free mapping of measured values to the individual recorders R-HA35-183.tif • Free combination of measuring groups for power calculation • Quality bits for displaying the momentary channel quality SIPROTEC 7KE85 • The trigger functions of a function block are the fun- damental value, r.m.s. value, zero-sequence, positive- 1 Modularly expandable sequence, negative-sequence system, Σ active, Σ reactive and Σ apparent power • Level trigger and gradient trigger for each trigger function • Flexible cross and network trigger • Creation of trigger functions with the graphical automation editor CFC (Continuous Function Chart) • Trigger functions by combination of single signals, double signals, analog values, binary signals, Bool signals and GOOSE messages. SIPROTEC Compact series Overcurrent protection SIPROTEC 7SJ80 • Pluggable current and voltage terminals • Binary input thresholds settable using DIGSI (3 stages) • Secondary current transformer values (1A/5A) settable using DIGSI • 9 programmable function keys • 6-line display • Buffer battery exchangeable from the front • USB front port • 2 additional communication ports LSP 2874-afp.eps • IEC 61850 with integrated redundancy (electrical or optical) SIPROTEC Compact 7SJ80 • Relay-to-relay communication through Ethernet with IEC 61850 GOOSE • Millisecond-accurate time synchronization through Ethernet with SNTP.

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 53 Components ANSI design

Panel design • Factory-assembled, type-tested according Basic panel design to IEC 62271 • Single-pole metal-enclosed, Legend for 8DA10 with metallic partitions 1) 1 Low-voltage compartment • Hermetically bolted switchgear 2 Electronic control board, housings made of corrosion-resistant 1 e.g. multifunction aluminum alloy protection • Switchpanel poles arranged one behind 3 Operating mechanism 2 the other and interlock for three- • Maintenance-free in an indoor position disconnector, as environment (IEC 62271‑1) 3 well as mechanical position • Cable connection with inside-cone plug-in indicators for three- system according to EN 50181 position disconnector and • Wall-standing or free-standing arrange- 4 circuit breaker ment 4 Manometer for gas monitoring of feeder gas • Subframe, front cover, rear cover and end 5 walls powder-coated in color “light basic” compartments (light gray RAL 7035) 5 Circuit breaker operating • Low-voltage compartment mechanism removable, plug-in bus wires 6 Voltage detecting system • Degree of protection 6 7 Operating mechanism ––IP 65 for all high-voltage parts of and interlock for the primary circuit the three-position ––IP 3XD for the switchgear enclosure HA35-2691f eps disconnector, as well • Option: IP 31D for the switchgear as mechanical position enclosure 7 indicator for the three- • Option: IP 41 for the low-voltage position disconnector at compartment the feeder • Vacuum circuit breaker • Three-position disconnector for disconnecting and grounding by means of the Example 8DA10 circuit breaker Single-busbar panel with three-position • Make-proof grounding by means of disconnector at the feeder the vacuum circuit breaker • Option: Three-position disconnector for disconnecting and grounding at the feeder • For further dimensions and product range, see pages 14 to 31. Insulating system

• Switchgear housing filled with SF6 gas • Features of SF6 gas: ––Non-toxic ––Odorless and colorless ––Non-inflammable ––Chemically neutral ––Heavier than air ––Electronegative (high-quality insulator) ––GWP (Global Warming Potential) = 22,800 • Pressure of the SF6 gas in the switchgear housing dependent on the electrical ratings (relative pressure at 20 °C): Rated functional level (relative): 120 kPa Gas leakage rate: < 0.1 % per year. Camera system • Camera system for visual monitoring of the switch positions of the disconnectors and grounding switches (see also page 56). UL certification • For 8DA and 8DB ANSI design options there is a UL or cUL certificate available.

1) Corresponds to ”metal-clad“ according to former standard IEC 60298

54 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Components ANSI design

Electrical data, functional level, temperature for single-busbar and double-busbar switchgear according to ANSI 1) Common elec- Rated insulation level Rated voltage Ur kV 4.76 8.25 15 27 38 40.5 trical data, Rated short-duration power- functional frequency withstand voltage Ud: level and – phase-to-phase, phase-to- temperature earth, open contact gap kV 19 36 36 70 80 80 – across the isolating distance kV 21 40 40 80 95 95 Rated lightning impulse

withstand voltage Up: – phase-to-phase, phase-to-

earth, open contact gap kV 60 95 95 125 200 200 – across the isolating distance kV 66 105 105 138 220 220

Rated frequency fr Hz 60 60 60 60 60 60 6) Rated normal current Ir of the busbar A 1250 1250 1250 1250 1250 A 2000 2000 2000 2000 2000 A 2500 2500 2500 2500 2500 A 3000 3000 3000 3000 3000 A 4000 4000 4000 4000 4000 A 5000 5000 5000 5000 5000 5000

Rated functional level pre (relative) of the busbar 120 kPa at 20 °C

Minimum functional level pme 100 kPa at 20 °C Ambient air temperature – 5 °C to + 55 °C 8)

Data of the switchgear panels 4) Circuit break- Rated normal current Ir A 1250 1250 1250 1250 1250 1250 er panel, A 1600 1600 1600 1600 1600 1600 disconnector A 2000 2000 2000 2000 2000 2000 2) panel , A 2500 2500 2500 2500 2500 2500 5) 5) 5) 5) 5) 5) bus sectio- A 2700 2700 2700 2700 2700 2700 6) 6) 6) 6) 6) 6) nalizer, bus A 3000 3000 3000 3000 3000 3000 coupler 3) Rated short-time withstand current 3 s up to kA 40 40 40 40 40 40

Rated peak-withstand current up to kA 104 104 104 104 104 104

Rated short-circuit making current up to kA 104 104 104 104 104 104

Rated short-circuit breaking current up to kA 40 40 40 40 40 40 Electrical endurance of at rated normal current 10,000 operating cycles 7) vacuum circuit breakers at rated short-circuit breaking current 50 breaking operations

Rated functional level pre (relative) for feeders 120 kPa at 20 °C

Minimum functional level pme 100 kPa at 20 °C

1) Higher values of the rated voltage available with 42 kV 2) Disconnector panel available for single-busbar switchgear 8DA10 3) Bus coupler available for double-busbar switchgear 8DB10 4) Maximum permissible normal current dependent on ambient air temperature 5) 2700 A without forced ventilation (8DB10 on request) 6) 3000 A with forced ventilation (8DB10 on request) 7) Option: 30,000 operating cycles 8) Option: Ambient air temperature –30 °C to +55 °C

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 55 56 • classification arc Internal housing). (switchgear sure enclo primary the outside Arranged Installation • • • • • • • features Voltage transformer • • • • • • Current transformer features computer. toamobile signaled and interface /RJ45 aUSB through phase per ted transmit are positions - GROUNDED System). ing -OPEN CLOSED The Monitor Disconnect (Visible VDMS system monitoring camera a digital with isequipped disconnector position three- every purpose, this For ments. require to ANSI according designed be can switchgear 8DB and 8DA system Camera ANSI design Components

Fixed-mounted circuit breaker switchgear types8DA and 8DB,upto 40.5kV, gas-insulated 2019 · SiemensHA35.11 U.S. ·January (see also page 13). page also (see to IEEE Std C37.20.7™-2007 according test arcing Internal insulated. Cast-resin panel of the partment com low-voltage inthe of plugs by connection meansSecondary Climate-independent enclosure tometal due Safe-to-touch type Inductive toEN 50181 according contact plug-in with system Connection design plug-in Single-pole, insulated. Cast-resin panel of the compartment low-voltage inthe strip a terminal of means by connection Secondary Climate-independent type Inductive (due to design) parts cast-resin stressed of dielectrically Free transformers, single-pole current as ring-core Designed

- - - -

three-position disconnector three-position the of positions the of monitoring visual for interface LAN and USB HA35-2692b eps C A O E D Current transformer installation installation

tion: (type 4MC4_90) the busbar three-position disconnector on between circuit breaker and Feeder current transformer (type 4MC4_40) Busbar current transformer (type 4MC4_10) Feeder current transformer (type 4MC4_90) Feeder current transformer interface LAN

(basic scheme) (basic D A C E

interface USB HA35-2734d eps 1 2 (basic scheme) (basic Voltage installation transformer

enclosed voltage transformer) panel connectionhousingandmetal- flexible cablewith plugsizeS2at the (not inthe panel,connectionvia fuses 4MU3_FUSE with primary Feeder voltage transformer three-position disconnector fusesand 4MU4_FUSE with primary Busbar voltage transformer

R-HA35-149b tif 1

Components ANSI design

Option: In accordance with ANSI requirements, Example: 8DA and 8DB switchgear can be Position indicators of 8DA10 with additional equipped with an additional three- three-position disconnector at the feeder position disconnector at the feeder. Features -Q1 • Rated normal currents up to 2000 A • 2000 operating cycles for the disconnector (higher operating cycles on -Q0 request) 52 • 1000 operating cycles for the earthing switch (higher operating cycles on request) • Operating shaft and disconnector con- -Q9 tacts with common center of rotation and reliable switch position up to the operating front of the panel • Gas-tight bushings separate the busbar and circuit breaker housings underneath the busbar disconnector contacts HA35-2736b eps • Cable connection and circuit breaker Feeder OPEN housings can be removed without interrupting busbar operation • Maintenance-free. -Q1

Switch positions • CLOSED, OPEN, GROUNDED or -Q0 READY-TO-GROUND 52 • CLOSED: Disconnector contact connected with the busbar: Main circuit closed between busbar, -Q9 circuit breaker and feeder • OPEN: Main circuit open between busbar, circuit breaker and feeder: Test voltages for isolating distances are withstood • READY-TO-GROUND: Contact blades con-

nected with the earthing contact HA35-2737b eps

• GROUNDED: Circuit breaker closed. Feeder CLOSED Three-position disconnector at the feeder connected with grounding contact.

Operating mechanism -Q1 • Only permissible operations possible due to logical mechanical interlocks -Q0 • Mechanically coupled position 52 indicators • Separate operating shafts for the “DISCONNECTING”, “GROUNDING” and “READY-TO-GROUND” functions -Q9 • With manual operating mechanism • Option: With motor operating mechanism Motor rating at 24 V to 250 V DC: max. 100 W 110 V to 240 V AC: max. 130 VA HA35-2738b eps • Same sense of rotation for the Feeder GROUNDED switching operations of the “CLOSE” or “OPEN” functions.

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 57 Standards Standards, specifications, guidelines

Type of service location Table – Dielectric strength The switchgear can be used as indoor installation according Single-busbar and double-busbar switchgear to IEC 61936 (Power installations exceeding 1 kV AC) 8DA10 and 8DB10 • Outside lockable electrical service locations at places which are not accessible to the public. Enclosures of switchgear can Rated voltage kV 12 24 36 40.5 only be removed with tools Rated short-duration power-frequency withstand voltage • In lockable electrical service locations. A lockable electrical service location is a place outdoors or indoors that is reserved – Between phase and earth kV 28 50 70 85 exclusively for housing electrical equipment and which is kept – Across isolating distance kV 32 60 80 90 under lock and key. Access is restricted to authorized person- Rated lightning-impulse withstand voltage nel and persons who have been properly instructed in electrical engineering. Untrained or unskilled persons may only enter – Between phase and earth kV 75 125 170 185 under the supervision of authorized personnel or properly – Across isolating distance kV 85 145 195 220 instructed persons. Terms “Make-proof earthing switches“ are earthing switches with Table – Dielectric strength short-circuit making capacity according to IEC 62271‑102 and Traction power supply switchgear 8DA11/ 12 EN 62271-102. Rated voltage according to Dielectric strength EN 50124-1 kV 17.25 27.5 • The dielectric strength is verified by testing the switchgear Nominal voltage according to with rated values of short-duration power-frequency with- IEC 60850 / EN 50163 kV 15 25 stand voltage and lightning-impulse withstand voltage according to IEC 62271‑1 (see table “Dielectric strength“). Rated short-duration power-frequency withstand voltage • The rated values are referred to sea level and to normal – Between phase and earth kV 50 95 atmospheric conditions (1013 hPa, 20 °C, 11g/m3 humidity – Across isolating distance kV 60 110 according to IEC 60071). The gas insulation at a relative gas pressure of > 50 kPa permits Rated lighting impulse withstand voltage switchgear installation at any desired altitude above sea level – Between phase and earth kV 125 200 without the dielectric strength being adversely affected. – Across isolating distance kV 145 220 Standards 8DA and 8DB switchgear complies with the relevant standards and specifications applicable at the time of type tests. In accordance with the harmonization agreement reached by the countries of the European Union, their national specifications conform to the IEC standard.

Overview of standards (September 2017) IEC standard VDE standard EN standard Switchgear 8DA and 8DB IEC 62271-1 VDE 0671-1 EN 62271-1 IEC 62271-200 VDE 0671-200 EN 62271-200 Devices Circuit breakers IEC 62271-100 VDE 0671-100 EN 62271-100 Disconnectors and earthing switches IEC 62271-102 VDE 0671-102 EN 62271-102 Voltage detecting systems IEC 61243-5 VDE 0682-415 EN 61243-5 Degree of protection IP code IEC 60529 VDE 0470-1 EN 60529 IK code IEC 62262 VDE 0470‑100 EN 50102 Insulation – IEC 60071 VDE 0111 EN 60071 Instrument – IEC 61869‑1 VDE 0414‑9-1 EN 61869-1 transformers Current transformers IEC 61869‑2 VDE 0414‑9-2 EN 61869-2 Voltage transformers IEC 61869‑3 VDE 0414‑9-3 EN 61869-3 Installation, erection – IEC 61936-1 VDE 0101 –

Insulating gas SF6 Use and handling of SF6 IEC 62271‑4 VDE 0671-4 EN 62271-4

Specification for new SF6 IEC 60376 VDE 0373-1 EN 60376 Guidelines for the checking and treat- IEC 60480 VDE 0373-2 EN 60480

ment of SF6 taken from electrical equipment Overview of standards for traction applications IEC standard – EN standard Supply voltage 8DA11 and 8DA12 IEC 60850 VDE 0115‑102 EN 50163 Switchgear 8DA11 and 8DA12 IEC 62505 VDE 0115‑320 EN 50152 Insulation 8DA11 and 8DA12 – VDE 0115‑107 EN 50124

58 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Standards Standards, specifications, guidelines

Current carrying capacity • IEEE C37.81-1989 “IEEE Guide for Seismic Qualification of • According to IEC 62271‑200 or IEC 62271‑1, the rated nor- Class 1E Metal-Enclosed Power Switchgear Assemblies” mal current refers to the following ambient air • IEC 60980‑1989 “Recommended practices for seismic temperatures: qualification of electrical equipment of the safety system – Maximum of 24-hour mean + 35 °C for nuclear generating stations”. – Maximum + 40 °C For installation on even and rigid concrete or steel structure • The current carrying capacity of the panels and busbars (without considering building influences), the tested ground depends on the ambient air temperature outside the accelerations meet the following requirements: enclosure. • Uniform Building Code 1997 (UBC) – Zone 4 • California Building Code 1998 (CBC) – Zone 4 Internal arc classifications • International Building Code 2006 (IBC) – 200 % • Protection of operating personnel by means of tests for • American Society of Civil Engineers 2005 (ASCE) – 200 % verifying the internal arc classification • IEEE 693-2005 – High required response spectrum • Internal arcing tests must be performed in accordance (Figure A.1). with IEC 62271‑200 and IEEE Std C37.20.7™-2007 • Definition of criteria according to IEC: Color of the panel front –– Criterion 1 Siemens standard (SN) 47 030 G1, color “light basic” (light Correctly secured doors and covers do not open, limited gray RAL 7035) (similar to RAL 7044 / silk grey). deformations are accepted Climate and environmental influences –– Criterion 2 No fragmentation of the enclosure, no projection of small 8DA and 8DB switchgear is completely enclosed and insensi- parts above 60 g tive to climatic influences. –– Criterion 3 • All medium-voltage devices are installed in gas-tight and No holes in accessible sides up to a height of 2 m bolted switchgear housings made of corrosion-resistant –– Criterion 4 aluminum alloy and filled with SF6 gas No ignition of indicators due to hot gases • Live parts inside and outside the switchgear housing are –– Criterion 5 provided with single-pole enclosure The enclosure remains connected to its earthing point. • At no point can creepage currents flow from high-voltage Resistance to internal faults potentials to earth Due to the single-pole enclosure and the gas insulation of the • Operating mechanism parts which are functionally impor- switchgear and the switching devices, the possibility of faults tant are made of corrosion-resistant materials in gas-insulated switchgear is a mere fraction of that typical of • Bearings in the operating mechanism are designed as other switchgear types: dry-type bearings and do not require lubrication. • There are no effects due to external influences, such as: Recycling – Pollution layers The switchgear can be recycled in ecological manner in – Humidity compliance with existing legislation. Auxiliary devices such as – Small animals and foreign objects short-circuit indicators have to be recycled as electronic scrap. • Maloperation is practically excluded due to logical Batteries have to be recycled professionally. Insulating gas SF6 arrangement of operating elements has to be evacuated professionally as a reusable material and • Short-circuit-proof feeder earthing by means of the recycled (SF must not be released into the environment). circuit breaker. 6 In the unlikely event of a fault within the switchgear housing, Protection against solid foreign objects, the energy conversion in the case of an internal arc fault is electric shock and water minor thanks to the SF6 insulation and the shorter length of 8DA and 8DB switchgear fulfills according to the standards the arc, approximately only ⅓ of the converted energy of an IEC 62271-1 EN 62271-1 arc in air insulation. IEC 62271-200 EN 62271-200 Resistance to short circuits and earth faults IEC 60529 EN 60529 Two-phase and three-phase short circuits between the primary IEC 62262 EN 50102 conductors are excluded by the single-pole primary enclosure. the following degrees of protection: Seismic withstand capability (optional) Degree of protection Type of protection IP 65 for parts of the primary circuit under high voltage 8DA and 8DB switchgear can be upgraded for regions at risk from earthquakes. IP 3XD for switchgear enclosure For upgrading, earthquake qualification testing has been IP 31D for switchgear enclosure (optional) carried out in accordance with the following standards: IP 41 for low-voltage compartment (optional) • IEC 60068‑3-3 “Guidance – seismic test methods for equipment” • IEC 60068‑2-57 “Test Ff: Vibration – Time-history method” Degree of protection Type of protection • IEC 60068‑2-6 “Test Fc: Vibration (sinusoidal)” IK 07 for switchgear enclosure • IEEE 693-2005 “Recommended Practice for Seismic Design of Substations” • IEEE 344-2004 “IEEE Recommended Practice for Seismic Qualification of Class 1E Equipment for Nuclear Power Generating Stations”

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 59 First gas-insulated circuit breaker switchgear 8DA10 – 1982

Up to now, over 100,000 8DA and 8DB switchgear panels successfully in operation worldwide.

R-HA35-153.tif

R-HA35-151.eps

R-HA35-150.eps

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60 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 Notes

Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019 61 Notes

62 Fixed-mounted circuit breaker switchgear types 8DA and 8DB, up to 40.5 kV, gas-insulated · Siemens HA 35.11 U.S. · January 2019

Published by Siemens Industry, Inc. 2019. Siemens Industry 7000 Siemens Road Wendell, North Carolina 27591 For more information, including service or parts, please contact our Customer Support Center. Phone: +1 (800) 333-7421 www.usa.siemens.com/mvswitchgear Article No. EMMS-K1435-A101-B5-7600-US Printed in U.S.A. © 2019 Siemens Industry, Inc. The technical data presented in this document is based on an actual case or on as-designed parameters, and therefore should not be relied upon for any specific application and does not constitute a performance guarantee for any projects. Actual results are dependent on variable conditions. Accordingly, Siemens does not make representations, warranties, or assurances as to the accuracy, currency or completeness of the content contained herein. If requested, we will provide specific technical data or specifications with respect to any customer’s particular applications. Our company is constantly involved in engineering and development. For that reason, we reserve the right to modify, at any time, the technology and product specifications contained herein.

January 2019