vishay capacitor

Applications

Vishay ESTA capacitors are suitable for use in heavy duty, super heavy duty, and ultra heavy duty PFC applications. Target applications for these capacitors include

  • Automatic PFC capacitor panels
  • Wind turbines
  • Individual fixed compensation (e.g. motors, transformers)
  • Group fixed compensation
  • Tuned and detuned harmonic filters
  • AC filters (e.g. UPS, frequency drives, converters)

Technical Specification

  • Standards: IEC 60831-1+2, EN 60831-1+2, IS 13340
  • Approvals: UL, ULc , BIS
  • Over-voltages (in accordance with the above standards) : Ucn + 10 % (up to 8 hours daily), Ucn + 15 % ( up to 30 minutes daily) Ucn + 20 % (up to 5 minutes), Ucn + 30 % (up to 1 minute)
  • Tolerances on capacitance: ± 5 %
  • Routine test voltage, terminal/terminal: 2.15 x Ucn, AC, 2 seconds
  • Losses: < 0.25 W/kVAr to < 0.45 W/kVAr
  • Degree of protection: IP20 - indoor mounting terminal cover for higher protection class (IP54 upon request)
  • Cooling: Naturally air-cooled
  • Permissible relative humidity:Maximum 95 %
  • Maximum allowed altitude: 2000 m above sea level
  • Mounting position: Vertical and horizontal
  • Mounting and grounding: Threaded M 12 stud at the bottom of the container, max. torque 10 Nm
  • Safety features:ALL-PHASE over pressure tear-off fuse (irreversible current interruption), self-healing film technology
  • Casing:Aluminum
  • Dielectric:Polypropylene film, self-healing
  • Filling agent:Dry (gas filled) and oil filled