Transformer DC resistance tester is a new generation of rapid tester which integrates magnetic method, three-phase test and demagnetization function. It is an ideal equipment for measuring DC resistance of large power transformers.
1. Connect all the high and low voltage current potential test lines to the transformer at one time.
2.For the winding test of star connection method, the instrument can adopt the method of three-phase simultaneous test to test the resistance of A0, B0 and C0 phase, which can save the test time.
3.In the low voltage test of transformer with three phase five-column low voltage inner angle-joint, the instrument adopts the method of automatic magnetic aid, which is faster than the direct large current test.
4.Display and print all the test data of the high and low voltage winding of the transformer, and automatically calculate the three phase unbalance degree, also can print converted to the rated temperature resistance value.