why we are caling 440 volt 3 phase supply instead of 660 volt 3 phase supply? because each phase as a voltage of 220 volt. if anybody know the answer for my question please send it to my mail id. thank you.

3 Answers   College School Exams Tests, Jindal Steel and Power, JIOL, NEC,

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compressor compresses air means exactly what happens?

2 Answers  

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what is international rules of electrical?

5 Answers   Essar,

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if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?

0 Answers  

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How can determine cable size with respect to cable length and area in mm2

1 Answers  

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what is rated voltage?

1 Answers  

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how oti and wti connections are different from each other?

0 Answers  

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calculation of lad carryinc capacity of 6mm2 cross section wire in 415 voltage circuit. What will be the amps.

0 Answers   MAHINDRA,

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l&t switch FN 63 handle position can we change

0 Answers   OPTCL,

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XYZ

0 Answers   ASD Lab,

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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.

0 Answers   Piramal Healthcare,

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how to calculate the size of cable for 100 kva load,?can somebody tell me with a formula

7 Answers   Havells,

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