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If the neutral wire go pass through the core balance current
transformer? If yes then why? and no then why?
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Answer Posted / rajevaibhav
If Current Flowing through the cable is balanced then
output of the CBCT through which the cable is passing is
zero. If you pass the Neutral through the CBCT and if fault
occurs then part of fault current will flow through the
Neutral which will also travel through the CBCT and CBCT
will not produce any output hence Protection will not
operate. Hence Neutral should not be passed through the CBCT
| Is This Answer Correct ? | 3 Yes | 4 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.
As i want some model question paper in basic computer science and history please send me immediately sir
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