Industrial machinery equipment AC Hipot Insulation Preventive Test vlf hipot tester It is applied in power cable and generator insulation test in power system. Introduction: VLF Tester is designed and manufactured for electrical equipment very low frequency withstand voltage ...
I---General Information VLF means ‘Very Low Frequency’ and 0.1Hz to 0.02Hz is considered to be very low frequency,used as a AC output tester. Although the frequency is very low, it is still an alternating current with polarity reversals every half cycle. At 0.1 Hz output, ...