- 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: +50oC
- Thermal Isolation: Class F/155oC
- 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