Transformer turns ratio measurementGenerally judging the quality of a transformer requires the following tests: AC withstand voltage, DC resistance, turns ratio, capacity, Load and no-load loss. For the turns ratio test, it is mainly to measure the actual transformer turns ratio error. The nameplate

Today we shipped one set GDJB-III Single Phase Relay Protection Tester to our customer.GDJB-III Single Phase Relay Protection Tester is used to adjust and test relaying protection tester of power supply system. The DC voltage output is 0~350V continuous adjustable, output capacity:960VA.The DC curre

Last week one of our customer placed an order with our company. Which includes one set GDHL-100A Circuit Breaker Contact Resistance Tester. Last Friday we already completed the production, and will ship it out from our factory today. And we will provide DOOR to DOOR service(including shipping cost,e