Answer / pramod nair

for bus-bar hv test we have connect first which phases you are appliying the voltage then you have to be grounded another two phase that means R-Y+B+E , You are appliying voltage in R phase means another phases you have to make it ground.

Answer / mohd fazil

the more specific Hot Hipot test can bring about feelings of apprehension. Yet the concepts involved ... peak (maximum) voltage is what we are concerned with. ... Connect the return lead of the Hipot tester to the metal chassis or enclosure of a ... transformer is used to isolate the input power to the DUT from earth ground.

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