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in our transmisison sub station why we step down firstly
132kv\33kv then 33kv to 11kv. can we direct step down 132kv
to 11kv.
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Answer Posted / pichumani
It is only for easy transmission and distribution. 11 kV
is normally used for town distribution. 33kV is used for
transmission to farther areas where the voltage is stepped
down by 33/11 kV sub stations. Normally in 132 incoming sub
stations you will have both 33 kv and 11 kV outgoings
depending upon the location of the 132/33/11 kV sub station.
| Is This Answer Correct ? | 13 Yes | 7 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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