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what is the difference b/w neutral and earth?what is the
need of earthing and what are the different methods for
earthing?
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Answer Posted / siva
neutral is the return path iof current , 3 phase neutral is
taken from junction point (star connection) its like
closing circuit for the load in earth is connected toneutral
in case fault is occur its go through the earth. fix the
earth bit rod in the ground connect to neutral
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how can maintaince the acb contactor moveing and fixing kit
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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