The Variable Frequency Series AC Resonant Test System is mainly composed of Variable frequency control power supply, excitation transformer, high voltage reactor, high voltage divider and so on. The Variable Frequency Series AC Resonant Test System uses the principle of series resonance, uses the ex

GDYJ-502A Transformer Oil Breakdown Voltage BDV Tester is used to measure breakdown voltage of transformer oil. It can also measure oil temperature during test. The test standards are IEC60156, IS6792, BS5874, ASTM D1816 and ASTM D877.Temperature Sensor PT100 is installed at the bottom of the test v

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