... power control cabinet 2.excitation transformer, reactor, voltage divider. resonance test system,AC Resonance Withstand Voltage Test system,high voltage test systemTransformer, GIS, SF6 switch, CT/PT, ... and micro ammeter with the voltage divider, then can finish the DC voltage withstand test.Products features 1.It with ... parameters of the measured equipment. AC Resonance Withstand Voltage Test system