The test items for power transformers shall include the following:1. Insulating oil(transformer oil) breakdown voltage test ;2. Measure the DC resistance of the winding together with the bushing;3. Check the voltage ratio of all taps;4. Check the three-phase wiring group of the transformer and the p

GDVA-405 Automatic CT PT Analyzer is used to analysis the characteristics of current transformer (CT) and potential transformer(PT).It can carry all the test items for CT PT.Functions and Applications:CT turns ratio detection, ratio error and angle error calibration, polarity test and excitation cha

GDYJ-502A 80KV Transformer Oil BDV Tester is used to measure breakdown voltage(dielectric strength) in transformer oil. The output voltage is 0-80kV. The test standards are IEC60156, IS6792, BS5874, ASTM D1816 and ASTM D877. It's touch screen. It can also measure oil temperature during test.Click to