Current Transformer / Potential Transformer AC High Voltage Test Set - Cascaded Precision-engineered for electrical appliance testing, our cascaded AC high voltage test sets ensure compliance with I.S. Specifications. Double Voltage Double Frequency Test Set DVDF Test Set is used for testing the strength of insulation between turns and between other points of the transformers. Sphere Gaps One of the standard methods used for measuring the peak value of the high voltage either DC, AC or impulse voltage. Micro Ohm Meter upto 10 Amps Designed for the measurement of Low Resistance values in micro-ohms at specified test currents. Kilo Volt Meters / Voltage Dividers Used to measure the kilo volt value of an Instrument Transformer, CT/PT, etc. Winding Resistance Meter Used for measuring low resistance in electrical equipment. Loading Coil Loading Coils are used for XCT current measurement. CT Polarity Tester Suitable for working on 230 volts single-phase AC supply and shall be delivered DC output voltage for testing polarity of CT.