Answer / nishad

My question is Why Earthing is not required in Xformer
primary star point of Star / Star connection????

Answer / k.prakashchandra

Eatrthing primary neutral of star/star Tr at the receiving
end is of no use for protection and safety . At sending end
neutral is earthed and it is sufficient.

How to get Electrical Supervisory Licence in chennai Tamil Nadu from TNEB. I am BE EEE graduate.

1 Answers  

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where connected OLTC for transformers?

3 Answers   Apollo, CBRE,

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why neutral and earth should not be connected on 3 phase 440v/50c/s supply at consumer side. where as on 25kv/ac/50c/s railway traction substation neutral and earth will be connected and track at substation. and track will act as neutral and earth. Reasons for this is needed urgently

4 Answers  

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Why in ESP Positive earthed

0 Answers   Sonhira,

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why heat produced at junction of two different conductor. what care should be taken to minimize it.

11 Answers   Birla, Maihar Cement,

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why is electricity produced and distributed in multiples of 11. 440V, 11KV, 22KV, 132KV etc

2 Answers   Bhel,

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can u give me a brief idea about power line carrier communication ??

0 Answers  

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how to calculate the ac and dc wire losses with calculations plz tell me

3 Answers   Apollo,

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how to set the overload setting in the thermal overload relay?? is there any calculation in that??

3 Answers  

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How to calculate the NGR value for a 2.7MVA Transfomer, 11KV system where the fault current has to be limited to 50A?

1 Answers   Sterling Wilson,

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why to need a electrical earthing?

2 Answers  

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why we connect the capacitor bank in star , not in delta in any system

2 Answers  

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