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Capacitors for Uninterruptible Power Supply Systems (UPS)

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Capacitors for Uninterruptible Power Supply Systems (UPS) EPCOS Product Brief 2017 Capacitors for Uninterruptible Power Supply Systems (UPS) EPCOS is known as one of the various segments: small single- world’s leading manufacturer of phase UPS systems mostly with electronic components. powers up to 12 kVA, followed Hardly any other supplier offers by 3-phase mid and high-power one-stop-shopping for all key ranges up to 50 kVA, 200 kVA components. The growing sales and even above 200 kVA. When of power-quality products has used as filters, power capacitors led EPCOS to develop a strate- will smooth any irregularities in gy for Power Quality Solutions. the power network and help to In conjunction with technical improve power quality and reli- experts, the aim is to offer appli- ability. A typical UPS of the mid cation know-how rather than power range uses an average just products. That means cus- of ten power capacitors per tomized service packages put system for filtering. Aluminum together by individual applica- electrolytic capacitors operate tion experts and assembled as DC link capacitors. EPCOS by specialists. In view of the offers these components in dif- growing importance of power ferent variants. The appropriate quality, EPCOS is focusing on film capacitors for the input and UPS solutions. The wide range output filters of UPS systems of different powers means that are the PhaseCap MKK, MKP or UPS products are split up into MFP series. www.epcos.com Capacitors for UPS Systems Capacitor overview Power capacitors Film capacitors MKP AC series MKP series B3236* B32354S* B33331V* B3265* FilterCap MKD AC B3267* Single-phase B3277* B32370 … B32374 MFP series Three-phase B3268* B32377, B32378 MKP AC output filters B3275* Snubber series B32656S* … B32658S* B32686S* Aluminum electrolytic EMI suppression capacitors capacitors Screw, snap-in, Standard X and Y series 4-/5-pin snap-in terminals B3292*C/D and solder-pins X1: B3291* B435*, B436*, B437* Y2: B3202* X2 humidity B3292*H/J X2 industrial grade B3292*A/B4 Block diagram of capacitors needed in state-of-the-art UPS systems MKP, MKK capacitors EMI capacitors Aluminum electrolytic Power Load capacitors connection Snubber capacitors 2 © EPCOS AG 2017 Power Capacitors for UPS Systems General Features Design ¼ Very high reliability ¼ Resin filling, non-PCB, ¼ High peak-current capability soft polyurethane ¼ Voltage series up to 480 V RMS ¼ Safety device: overpressure ¼ Low-volume solutions disconnector, self-healing ¼ Five different terminal styles technology ¼ Customized configurations ¼ Mounting and grounding by stud on bottom of aluminum can ¼ Naturally air-cooled or forced air cooling ¼ Indoor mounting ¼ Reference standards IEC61071 ¼ UL-approval file E106388 (B32361, B32362) ¼ UL-approval file E238746 (B33331V) Technical data Type/series VR CR V AC µF B32361 350 50 … 200 460 50 … 100 680 10 … 70 B32362 350 150 … 600 460 100 … 400 680 60 … 250 B33331V 460 2 … 50 Dimensional drawings B32361 B32362* B33331V © EPCOS AG 2017 3 Three-phase AC Power Capacitors for UPS Systems General Features Design ¼ Very high reliability ¼ Resin filling, non-PCB, soft polyurethane ¼ High peak-current capability ¼ Safety device: over pressure disconnector, ¼ Voltage series up to 600 V RMS self-healing technology ¼ Five different terminal styles ¼ Mounting and grounding by stud on ¼ Customized configurations bottom of aluminum can ¼ Naturally air-cooled or forced air-cooling ¼ Indoor mounting ¼ Reference standard IEC61071 ¼ UL-approval file E487229 Technical data Type/series VR CR Type/series VR CR Type/series VR CR V AC µF V AC µF V AC µF B32370 350 10 … 150 B32373 350 150 … 600 B32377 350 3× 50 … 3× 400 (Fast-on) 460 10 … 120 (M10 screw) 460 100 … 500 (Delta 460 3× 50 … 3× 350 connection) 590 10 … 100 590 60 … 400 590 3× 50 … 3× 300 680 6.8… 70 680 60 … 350 680 3× 30 … 3× 250 750 10 … 60 750 47 … 330 750 3× 20 … 3× 250 850 5 … 45 850 70 … 300 850 3× 50 … 3× 150 B32371 350 50 … 200 B32374 350 100 … 400 B32378 350 3× 150 … 3× 400 (M6 screw) 460 30 … 120 (Screw clamp) 460 100 … 300 (Star 460 3× 150 … 3× 300 connection) 590 10 … 100 590 60 … 250 590 3× 80 … 3× 250 680 10 … 70 680 100 … 250 680 3× 70 … 3× 200 750 10 … 50 750 100 … 200 750 3× 60 … 3× 120 850 10 … 40 850 100 … 150 850 3× 50 … 3× 100 B32372 350 100 … 300 (M8 screw) 460 80 … 300 590 60 … 200 680 20 … 250 Dimensional drawings 4 © EPCOS AG 2017 Aluminum Electrolytic Capacitors for UPS Systems General Capacitors with screw terminals Optional: ¼ Features 4-/5-pin snap-in terminals: 6.3 and 4.5 mm length ¼ Solder-pin mounting on circuit boards ¼ High CV product ¼ PET insulation cap on terminal side for insulating ¼ High reliability and high ripple-current capability the capacitor from the PCB Optional: Snap-in capacitors ¼ Low-inductance design (13 nH) ¼ Self-extinguishing electrolyte Features ¼ High CV product Design ¼ Long useful life ¼ ¼ All-welded construction ensures reliable electrical contact High reliability and very good current handling capability ¼ Low ESR ¼ Optional: Voltage derating enables +105 °C operation ¼ for all +85 °C series Optimized construction for base cooling ¼ (heat-sink mounting) Base cooling upon request ¼ PAPR terminals available ¼ Versions with PET insulation upon request Design ¼ Different case sizes available for each capacitance value Capacitors with 4-/5-pin snap-in terminals and solder-pins Optional: ¼ Features Two terminals: 6.3 or 4.5 mm length ¼ Three terminals: to ensure correct insertion ¼ Very high volumetric efficiency ¼ PET insulation cap on terminal side for insulating ¼ High ripple-current capability the capacitor from PCB ¼ Voltage derating enables +105 °C operation ¼ PET insulation sleeve for the aluminum case for all +85 °C series Design ¼ Pinning ensures correct insertion ¼ Many different case sizes Technical data VR CR Dimensions 85 °C series 105 °C series V AC µF mm Screw terminals 350 … 600 10000 … 680000 51.6 x 80.7 up to B43701/B43721, 91.0 x 221.0 B43712/B43732, B43703/B43723, B43704/B43724, B43705/B43725, B43713/B43733, B43700/B43720 Snap-in capacitors 10 … 500 1200 … 68000 22 x 25 up to B43630, B43624, B43509, B43544, 35 x 50 B43634, B43541 B43545, B43640, B43641, B43642, B43643, B43644 4-/5-pin snap-in terminals 385 … 450 220 … 1800 35 x 40 up to B43512, B43522, B43516, B43526 and solder-pins 50 x 95 B43513, B43523 The AlCap tool for the calculation of life expectancies for the series listed here is available at www.epcos.com/alcap © EPCOS AG 2017 5 Film Capacitors for UPS Systems General Snubber capacitors EMI suppression capacitors In order to block voltage peaks, snubber capacitors EMC filters are usually composed of approved X2 and are typically connected in parallel with semiconductors. Y2 EMI suppression capacitors for use in across-the- MKP capacitors of the B32652 … B32658 series line and line-to-ground positions. The approvals are feature a high IRMS current, a very good self-healing based on the corresponding international standards characteristic and a wide variety of terminals (IEC, UL, CSA). The B32921 … B32928 series offers (throughhole and 17 strap terminals for screw to IGBT, compact X2 capacitors up to 30 µF, with a maximum B32656S … B32658S). operating voltage of 305 V AC (50/60 Hz). In addition, The B32671L … B32672L series also offers an the B32021 … B32026 series covers the demand excellent AC voltage capability. for Y2 capacitors up to 1.0 µF and a rated voltage of For higher pulse handling capability the 300 V AC. If reinforced insulation is demanded with B32682 … B32686 and B32686S series can withstand higher voltage withstanding, X1 (B32911 … B32916) dv/dt values up to 20 000 V/µs and very high IRMS and Y1 (B81123) are available. current with frequencies exceeding 100 kHz. The new X2 humidity B3292*H/J series of X2 EMI suppression capacitors features stable capacitance DC link capacitors values, even under extremely humid conditions. The Capacitors in the DC link module are designed to B3292*H/J series for operating voltages of up to for support the DC voltage after the AC/DC converter by 305 V AC comprises types with rated capacitances supplying high current peaks when required. ranging from 0.1 to 15 µF. EPCOS offers MKP capacitors in various operating A new X2 industrial grade series of robust MKP X2 voltages, with its B32674 … B32678 series (higher capacitors (B3292xA/B4) offers a higher rated voltage current capability) and B32774 … B32778 series (high of 350 V AC, whereas conventional types are designed density of capacitance, also available in THB version). for rated voltages of 305 V AC. This makes the new X2 capacitors suitable for EMI suppression in input filters, Capacitors for output filtering specifically for applications on the North American market and for output filters. The basic purpose of an output filter is to protect the load connected to the output by filtering the Design RF components coming from the inverter and to with- ¼ Dielectric polypropylene film (MKP) stand the current peaks caused by pulses of rapidly ¼ changing voltages. Plastic case (UL 94 V-0) ¼ Epoxy resin sealing, flame-retardant With the new MKP AC series B3275* EPCOS intro- ¼ duces a capacitor range with an optimized AC voltage Lead free tinned terminals: Strap, 2-pin and 4-pin performance vs size. To be highlighted is the high versions. Special lead lengths available on request. humidity capability of this new AC series, what is qualified by a 1000 h test at 60 °C, 95% RH, VR. 6 © EPCOS AG 2017 Film Capacitors for UPS Systems Technical data EMI suppression CX (EMC) CY (EMC) X2 X2 industrial grade X2 humidity X1 Y2 Y1 B3292* B3292xA/B4 B3292xH/J B3291* B3202* B81123 305 V AC 350 V AC 305 V AC 305 V AC 300 V AC 250 V AC 10 nF … 30 µF 0.47 … 10 µF 0.1 … 15 µF 10 nF … 6.8 µF 1 nF … 1 µF 1 nF … 22 nF THB 85 °C/85% RH/ THB 85 °C/85% RH/ 330 V AC/1000 h 240 V AC/1000 h Technical data DC link Snubbering Output filtering CBUS (DC filtering) CS (snubber) CF (AC filtering) MKP MKP MKP MFP MKP AC X2 industrial grade B3277* B3267* B3265* B3268* … B3275* B3292xA/B4 B3267xL B32686* 450 … 1300 V DC 250 … 2500 V DC 250 … 310 V AC 350 V AC 0.47 µF … 480 µF 1 nF … 40 µF 1 µF … 70 µF 0.47 ..
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