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What is the acceptance value of leakage current in HI POT test
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Answer Posted / c.hari balakrishnan
SWITCHGEAR : -
There is no specified value of leakage current,Normally it
depends on how much load is connected.Normally it is in
milliamps.For example : In 11kV SWGR we highpot with 20bays
(indoor SWGR)we can get around 20 to 30 mAmps...
Cable: -
for cables normally we can get around very low Milliamps...
| Is This Answer Correct ? | 8 Yes | 8 No |
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Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.
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