Siemens Power Capacitors

Low Voltage 3 Phase Siemens Power Capacitors SIECAP™ SHD

SIECAP™ SHD Siemens Power Capacitors is a series of MPP Metalized polypropylene) capacitors which have been used for PFC applications .These are designed for commercial, heavy and light industrial application . The power range varies from 1 to 33.0 kvar for a three-phase capacitor desing.

The SIECAP™SHD capacitor is especially intended for power factor correction in industrial and commercial applications,Especially designed to meet Heavy duty requirements The capacitors are manufactured using metalized polypropy lene film as the dielectric and housed in a Cylindrical aluminum case

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Features

  • Up to 33 kvar per case for three-phase applications
  • Long life expectancy of up to 200 000 hours
  • High pulse current withstand capability (up to 500 · IR)
  • Reduced mounting costs, easy installation and connection
  • Low weight and compact volume
  • Maintenance-free

Application

  • Power Factor Correction (PFC)
  • Automatic capacitor banks
  • Fixed PFC applications, e.g. motor compensation
  • Detuned PFC systems
  • Dynamic PFC systems
  • Heavy Industries
  • Most compact desing in cylindrical aluminum can with

Specification

Standards IEC 60831–1/2 Edition 3.0 (2014), IS 13340–1/2 (2012)
Overvoltage Vmax VR +10% (up to 8 h daily)

VR +15% (up to 30 min. daily) VR +20% (up to 5 min. daily) VR +30% (up to 1 min. daily)
Overcurrent I max Up to 1.6 …2.0 • IR (A) (including combined effects of harmonics, overvoltages and capacitance tolerance) depending on the individual type
Inrush current Is ≤ 500 IR (A)
Losses

•      Dielectric

•      Total 1

  

0.2 W/ kVar

0.45 W/ kVar
Rated frequency f 50 / 60 Hz
Capacitance tolerance –5 % / +5 %
Test voltage, terminal / terminal VTT 2.15 * VN VAC / 50 Hz, 2s
Test voltage, terminal / case VTC 3600 VAC / 50 Hz, 2 s upto VN = 525 VAC

6000 VAC / 50 Hz, 2 s above VN = 525 VAC
Mean life expectancy TLd(Co) Upto 200 000 hours (temperature class –40/D)
Ambient temperature Class -40/60: Max. short time: + 60°C, max. mean 24h: +45°C; max mean 1 year: +35°C; lowest temperature: – 40°C
Cooling Natural or Forced air cooling
Humidity Hrel max. 95 %
Altitude max. 4000 m above sea level
Mounting position Upright / horizontal
Mounting and grounding Threaded M12 (10 Nm) for case size diam. > 53 mm M8 (4 Nm) for case size diam <= 53 mm
Safety Self-healing technology, overpressure disconnector
Discharge module Discharge module included
Case Extruded aluminium cane
Enclosure IP00 for plastic top – 1 to 4 kvar, indoor mounting IP20 for metal top – 5 to 30 kvar, indoor mounting
Dielectric Polypropylene film
Impregnation Biodegradable soft resin, semi-dry
Terminals SIGUT screw terminals, max current 80 A, max. 25 mm2 cable cross-section or Fast-On terminals
Number of switching operations 15000 switching’s per year

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