Auto Transformer Oil BDV Tester Apparatus HJT series introduction: HJT series insulating oil testers are fully automatic micro controller based system, completely self-contained,compact and portable giving smooth variable test voltage from 0 to 60kV, 80kV, or 100 kV for testing the dielectric strength of insulating oil in accordance with all international standards like IEC156/IS6792/ASTM D … More Transformer Oil BDV Tester, Dielectric Oil BDV Test Kit, transformer oil testing kit, oil analyser rates, manufacturer