how hazordious area is classified at an oil & gas plant
and categorise suitable class of electric equipment in that
area like induction motors, LCS, Lighting Fixtures
Fluerescent/Flood lights Mercury& sodium lights, J.Bs,
Power Cables etc
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What are the different types of transformers?
what is meant by 3rd hormonics ?
What is the difference Marshaling box and RTCC (Relay tap changer circuit) Panel of transformer ?
how can we calculate ct ratings ?its any formula ?
Can we use LT(150 sq. mm) cable in place of HT (120 sq.mm.) cable.?
what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors
who invented electricity?
what is the difference between switch yard to residential area.and how much required it.
what is ring main unit(Rmu)? what is its function
HT/LT PANEL TEST?ALL TEST
What is resonant frequency?
I have 11KV/415V power distribution transformer. I have found unbalance current in LT (415V) side. Also observed that unbalance voltage (3V) at LV side due to HV side unbalance voltage. What should I check for this? Also, the same LV side load can run in balance on captive power.