Product Specification

  • VPI, Single Phase or Three Phase, Iron Core, Double air gap
  • Rated Voltage: 230 V to 690 V
  • Rated (Base) Frequency: 50 Hz
  • Detuning (Filtering Factor) , p : 5.67%, 7%, 14% etc.
  • Corresponding Resonance Frequency: 210 Hz, 189 Hz, 134 Hz etc.
  • Inductance Tolerance: ± 3%
  • Taps: Provided as required
  • Fundamental Harmonic Current: I1 =…. (Ref. to following Table)
  • Maximum Harmonic Current: Ih = 0.3 I1
  • Heating Limit Current: Ith = 1.1 I1 (p=7%) , 1.2 I1 (p=5.67%)
  • Saturation Current (Linearity) : ILin = 1.75 I1
  • Maximum Current : Imax = 2 I1
  • Altitude: Under 1000 m
  • Ambient Temperature: +50 °C
  • Thermal Isolation: Class F/155°C
  • Insulation Withstand Voltage: 4000 volts for 1 minute or equivalent
  • Cooling Method: Air Natural Convection
  • Noise Level: Below 40db
  • Degree of Protection: IP-00 (Open Construction) IP-23, IP-44, IP-65 etc. (Enclosure Type)
  • Standards/Directives : IEC 61558-2-20
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