I try to check the three phase voltage in multimeter, in
125A isolator switch incommer. first i touch R phase, and
then i touch Y phase using multimeter, the moment i touched,
it blasts and that moment i got blindness. multimeter
selector position is correct(750V AC MODE AND RED PROBE WASS
IN v AND BLACK PROBE WASS IN COM. MODE. COULD ANYBODY GIVE
ANSWER FOR THIS TO AVOID FURTHER ACCIDENTS PLEASE?
Answers were Sorted based on User's Feedback
Answer / anand yadav
The distance between the live parts would be very small and
meter prob exposed part accidently (prob slipped,sudden
noise,vibration etc.)shorted the two phases,and a results
in a ballast.
Is This Answer Correct ? | 3 Yes | 0 No |
your selector switch position was correct ,by right the
multimeter should have given you the voltage reading ,but
than some multimeter comes with a separate probe socket for
testing of amperes. maybe maybe, the probe was wrongly
plugged into this socket.
Is This Answer Correct ? | 2 Yes | 0 No |
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75kw drive operated motor current fluctuation from(85-130)ampere.current setting in drive is 130amp.sometimes motor trip when current limit cross 130amps.I change the drive. still current fluctuate between 80-130amps but in this time motor not trip,current setting in drive is 130amps.where is the problem?
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