Air-Insulated Medium-Voltage Switchgear Nxairs, 24Kv

Air-insulated Medium-Voltage Switchgear NXAirS, 24kV

siemens.com.cn/energy-management Air-insulated Medium-Voltage Switchgear NXA irS,24kV Contents Application

Types

Application Circuit-breaker switchgear NXAirS, is factory-assembled, type-tested, Types metal-enclosed and metal-clad switchgear for indoor installation accoording Typical uses to GB3906, DL404 and IEC 62271-200.. Classification Loss of service continuity category LSC2B (Metal clad) Partition class PM(Metal) Requirements Internal arc classification IAC A FLR ISC≤31.5kA Customer benefits and features arc duration=1s

Technical Data Electrical data and dimensions Design data Transportation and packing

Primary Solution NXAirS 24kV

Design Design of switchgear

Components Vacuum circuit-breaker

Standards Standards, specifications, guidelines

NXAirS panel Maxium rating 24kV/31.5kA/3150A

2 Air-insulated Medium-Voltage Switchgear NXA irS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV Contents Application Application

Types Application Typical uses Classification

Application Circuit-breaker switchgear NXAirS, is factory-assembled, type-tested, NXAirS circuit-breaker switchgear is used in NXAirS switchgear correspond to the following classifications according to GB3906, Types metal-enclosed and metal-clad switchgear for indoor installation accoording Typical uses substations and distribution system, mainly at the DL404 and IEC62271-200. to GB3906, DL404 and IEC 62271-200.. Classification primary distribution level. E.g. Loss of service continuity category Loss of service continuity category LSC2B (Metal clad) and partition class Partition class PM(Metal) Loss of service continuity category LSC 2B (Metal clad) Requirements Application Public power supply system Internal arc classification IAC A FLR ISC≤31.5kA Customer benefits and features arc duration=1s • Power supply companies Partition class PM (Metal) Accessibility to compartments Technical Data Application Industry Busbar compartment Tool-based Electrical data and dimensions • Power plant Switching-device compartment Interlock-based Design data Transportation and packing • Cement industry Connection compartment Interlock-based and use special tools • Automobile industry Primary Solution • Iron and steel works Internal arc classification NXAirS 24kV • Mining industry The following internal arc classification • Textile, paper and food industries are fulfilled Design • Chemical industry IAC A FLR, I , t Design of switchgear SC • Petroleum industry IAC ＝Internal arc classification • Pipeline installations Components A ＝300mm distance of indicators for test • Offshore oil devices (installation in closed electrical service Vacuum circuit-breaker • Electrochemical plants location) F ＝Front arrangement of indicators for test Standards • Petrochemical plants Standards, specifications, guidelines • Diesel power plants L ＝Lateral arrangement of indicators for test ＝Rear arrangement of indicators for • Emergency power supply devices R test • Coal exploitation

ISC ＝Test current for NXAirS up to 31.5kA t ＝Arcing time 1s

In this way, NXAirS is suitable for unrestricted application (wall or free- standing arrangement) in electrical service locations up to the maximum short-circuit current rating.

NXAirS panel Maxium rating 24kV/31.5kA/3150A

2 3 Air-insulated Medium-Voltage Switchgear NXAirS,24kV Requirements

Customer benefits and features

Benefits Features

Peace of mind • Type-tested switchgear according to GB, DL and IEC standard. For power supply companies and • Independent pressure-resistant partitions for each compartment. industrial plants, the certification • Use of maintenance-free vacuum circuit breakers. of NXAirS according to the latest • Type testing of the vacuum circuit breaker. standards has very concrete • Pressure-resistant partitions. a d v a n t a g e s , w h o s e s m o o t h • Use of standard, worldwide available components. operation provide maximum • Quality management according to ISO9001. safety for users.

Saves Lives • All switching operations with high-voltage door closed. All switchgear types of the NXAirS • Metallic enclosure, earthed shutters and partitions. family are approved with internal • Reliable interlock mechanism installed on high voltage door. arc classification IAC A FLR, loss of • Switchgear with internal arc classfication according to IAC A FLR. service continuity category LSC 2B, • Loss of service continuity category LSC2B. partition class PM. This makes them • Busbar, cable connection and switching-device compartments are divided into independent suitable for universal installtion, compartment. meeting the highest requirements • Use of vacuum circuit breakers. regarding personal safety. • Standard degree of protection IP4X. • Shutters of busbar compartment cover the stationery contact for preventing electric shock to maintainer. • Reliable mechanical interlocking system.

Save money • Stable insulation performance—the use of embedded pole type VCB avoids the environment The adoption of newly designed influence maximumly. 3AE maintenace-free embedded • Constant contact resistance—the absence of oxidation in a vacuum keeps the metal contact pole breaker enable continuous surfaces clean. For this reason, contact resistance can be assured to remain low throughout the operation without expensive service life of the equipment. shutdown times. • Large total breaking times—Under the rated normal current, the breaker can be interrupted up to 30,000 times. • Maintenance-free within 10,000 times operation cycles—throughout its entire service life, the vacuum interrupter operates reliably at all times—without any forms of maintenance within 10,000 times operation or 10 years. The arc voltage is thus extremely low-only 20 to 200V. And, on account of short arcing times of max. 15ms, the energy consumption in the contact gap is very low.

4 Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV Requirements Technical Data

Customer benefits and features Electrical Data and Dimensions

Benefits Features Rated values Peace of mind • Type-tested switchgear according to GB, DL and IEC standard. For power supply companies and • Independent pressure-resistant partitions for each compartment. -rated voltage kV 24 industrial plants, the certification • Use of maintenance-free vacuum circuit breakers. -rated frequency Hz 50 of NXAirS according to the latest • Type testing of the vacuum circuit breaker. -short-duration power frequency withstand voltage (phase- kV 65/79 to-phase, phase-to-earth) standards has very concrete • Pressure-resistant partitions. -lightning impulse withstand voltage (phase-to-phase, phase- kV 125/145 a d v a n t a g e s , w h o s e s m o o t h • Use of standard, worldwide available components. to-earth) operation provide maximum • Quality management according to ISO9001. -short-circuit breaking current (max.) kA 25，31.5 safety for users. -short-time withstand current, 4s (max.) kA 25，31.5

， Saves Lives • All switching operations with high-voltage door closed. -short-circuit making current (max.) kA 63 80 All switchgear types of the NXAirS • Metallic enclosure, earthed shutters and partitions. -peak withstand current (max.) kA 63，80 family are approved with internal • Reliable interlock mechanism installed on high voltage door. -busbar current A 1250, 2000, 2500，3150 arc classification IAC A FLR, loss of • Switchgear with internal arc classfication according to IAC A FLR. -Feeder current A 1250, 2000, 2500，3150 service continuity category LSC 2B, • Loss of service continuity category LSC2B. partition class PM. This makes them • Busbar, cable connection and switching-device compartments are divided into independent Dimension suitable for universal installtion, compartment. Width W mm 1000 meeting the highest requirements • Use of vacuum circuit breakers. Height mm 2854/2620/2695 regarding personal safety. • Standard degree of protection IP4X. • Shutters of busbar compartment cover the stationery contact for preventing electric shock to Depth D mm 1810/1848 maintainer. Weight kg 900～1300 • Reliable mechanical interlocking system.

30,000 times. Height mm 630

• Maintenance-free within 10,000 times operation cycles—throughout its entire service life, the Depth mm 400 vacuum interrupter operates reliably at all times—without any forms of maintenance within 10,000 times operation or 10 years. The arc voltage is thus extremely low-only 20 to 200V. And, on account of short arcing times of max. 15ms, the energy consumption in the contact gap is very Dimension of connection compartment low. Width mm 1000

Height mm 1150

Cable terminal to earth mm ≥750

4 5 Air-insulated Medium-Voltage Switchgear NXA irS,24kV Technical Data

Design data

Structure view of panel body • Please consult for low indoor height. • A passage with 1200mm width must be avaibable alongside the panel so as to push the

withdrawable part into this 4 5 8 2 passage.

Structure view of NXAirS 25kA/1250A

Structure view of NXAirS 31.5kA/2500A

Structure view of NXAirS 31.5kA/3150A

6 Air-insulated Medium-Voltage Switchgear NXA irS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV Technical Data Technical Data

Design data Transportation and packing

Structure view of Transportation panel body The following factors should be taken Dimensions, volume and weight • Please consult for low indoor into account when deciding on the size of height. transport units to be selected: Width Depth Height Volume Total weight m m m m3 kg • A passage with 1200mm width • Transport facilities on site must be avaibable alongside • Transport weights and dimensions One panel 1.30 2.07 2.93 7.88 1459 the panel so as to push the • Size of building doorways Two panels 2.47 2.07 2.93 14.98 1610

withdrawable part into this 4 5 8

2 Three panels 3.48 2.07 2.93 21.11 1788 passage.

Packing Packing type Transport by Method of packing Panels on wooden pallets and cover the panels with Simple Road polyethylene sheets bag. Structure view of NXAirS 25kA/1250A Panels on wooden pallets, cover the panels with Standard Rail and road polyethylene sheets bag and seal with wooden floor.

Panels on wooden pallets, cover with polyethylene sheets bag by vacuumized treatment , welded together with Export Ship desiccant bags and sealed with the fumigated wooden box board; max. storage:6 months

Floor cutouts and fixing points

Structure view of NXAirS 31.5kA/2500A

1.Foundation frame 2.Distance to the wall 3.Left-side wall 4.Fixing point, the rectangle hole is 60×20mm 5.Control cable cutout 6.High-voltage cable cutout

Structure view of NXAirS 31.5kA/3150A 7.Building wall

6 7 Air-insulated Medium-Voltage Switchgear NXA irS,24kV Primary Solution

NXAirS 24kV

Withdrawable panel

Busbar ﬁttings

Withdrawable sections

Connection ﬁttings

Voltage transformer Withdrawable Current transformer on busbars vacuum circuit- or breaker or

or Current transformer Voltage trsformer in in busbars busbars Disconnection link or or

Earthing Bus riser

or or

single-core sealing ends single-core sealing ends for XLPE cables MEx. for XLPE cables MEx. 2 2 or 4x500mm per phase or 2x500mm per phase

Bars To describe

Panel ventilation

8 Air-insulated Medium-Voltage Switchgear NXA irS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV Primary Solution Primary Solution

NXAirS 24kV NXAirS 24kV

Withdrawable panel Subsection busbar connection panel

Withdrawable panel Bus riser panel, type I

Busbar ﬁttings Busbar ﬁttings

Withdrawable sections Withdrawable sections Busbar ﬁttings

Connection ﬁttings Connection ﬁttings Withdrawable sections

Voltage Withdrawable Current Current Metering Voltage transformer vacuum transformer transformer section transformer Connection ﬁttings on busbars circuit-breaker on busbars

or or or Earthing Earthing Disconnection or link Voltage Voltage transformer Withdrawable Current transformer transformer on busbars vacuum circuit- or fuses and arresters or breaker or Panel ventilation or Current transformer Voltage trsformer in in busbars busbars Disconnection link or or Withdrawable panel Bus riser panel, type II Earthing Bus riser Busbar ﬁttings Busbar ﬁttings or or

Withdrawable sections single-core sealing ends single-core sealing ends for XLPE cables MEx. for XLPE cables MEx. 2 2 or 4x500mm per phase or 2x500mm per phase Connection ﬁttings Connection ﬁttings

Bars To describe Voltage Withdrawable Current Current Voltage transformer vacuum transformer transformer transformer or on busbars circuit-breaker on busbars

or Panel ventilation or or or Earthing Earthing Voltage Disconnection transformer link

or or

Panel Current ventilation transformer

Voltage transformer or

Current transformer

Voltage transformer

8 9 Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV

device

device Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV

device

device Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV

the latest

connection compartment compartment Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV

the latest

connection compartment compartment Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV

62 271-1

IEC 62 271-1,GB/T 11022 Air-insulated Medium-Voltage Switchgear NXAirS,24kV Air-insulated Medium-Voltage Switchgear NXAirS,24kV

62 271-1

IEC 62 271-1,GB/T 11022 SIEMENS LTD., CHINA (SLC) SLC WEIFANG LIAISON OFFICE Road, Yangpu District, Shanghai City SLC WENZHOU BRANCH Dongguan City, Guangdong Province No.7 Wangjing Zhonghuan Nanlu, Room 1507, Yuanfei Hotel, No.31 Siping 200082 Room 1506A, 15F, Fortune Center, 523087 Chaoyang District Beijing 100102 Road, Kuiwen District, Weifang City, Tel: 400-616-2020 No.577, Chezhan Road, Lucheng Tel: (0769) 22409881 Tel: 400-616-2020 Shandong Province 261041 District, Wenzhou City, Zhejiang Tel: (0536) 8221866 SLC JIANGSU BRANCH Province 325000 SLC ZHUHAI LIAISON OFFICE SLC HARBIN BRANCH 7-18F, Metro Building, No.228 Zhong Tel: (0577) 8606 7091/8606 7092 Room 1303A, 13F Zhuhai Tibet Hotel, Site A, 30F, Always Development Plaza, SLC DEZHOU LIAISON OFFICE Shan Road, Xuanwu District, Nanjing City, No.166 Meihua West Street, Zhuhai City, No. 15 Hong Jun Street, Nangang District, Room 508, 5F, Fengguan Holiday Hotel, Jiangsu Province 210008 SLC SHAOXING LIAISON OFFICE Guangdong Province 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Siemens Ltd., China Subject to change without prior notice The information provided in this brochure contains descriptions Energy Managerment Division Order No.: or characteristics of performance which in case of actual use do EMMS-B80016-00-5DCN not always apply as described or which may change as a result of 1790-D906430-1016e further development of the products. An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of contract.

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