HVHIPOT Single Phase Relay Protection Tester

GDJB-II type Single phase relay protection tester is the updated calibration device for relay testing. It shows clear data, operation is easy.

• Measure relay: Measure start value, return value and drop-off to pick-up ratio of current, voltage relay.


• Time relay: Measure start value, return value and action time.


• Intermediate relay: Measure all kinds of coil with start. Remain start value, return value, holding value and action time of coil intermediate relay.


• Reclosing relay: Charge test of capacitance, charge time, reclosing time and middle components test.


• Differential relay: DC Excitation test, Braking test, Volt-ampere characteristic test.


• Other unconventional relays and LV circuit breakers.

•  Working conditions