200KV0.25A AC Dielectric Voltage Test&PD Test System
Power frequency test transformer system generates a continuously adjustable AC test voltage. It is used for GIS high-voltage switchgears, cables and accessories, instrument transformers, power transformers, high-voltage circuit breakers, coupling capacitors, capacitive bushings, surge arresters, insulators, electrical porcelains and other electrical components as power frequency voltage withstand, partial discharge test and other scientific research.