Answer / karthikeyan

harmonics are introduced in the system due to non-linear
circuits(Rectifiers,SMPS)

Answer / giridha

Due to fast switching of loads(inductive). Harmonics will be induced in the system.

what happens when the phase and earth wires comes in contact? and why

2 Answers  

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What is the diffrence between an ELCB(earth leakage circuit breaker) and RCCB(residual current circuit breaker)?which has higher degree of safety and why?

2 Answers  

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IF alternator SCR value will be high means what happen in alternator efficency at operating power factor of 0.8

0 Answers  

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Transmission voltage is kept 11KV,33KV,66KV,132KV,220KV due to form factor. What happen to 400KV and 765KV transmission voltage?

0 Answers  

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For backup batteries connection,which method is best? series or parallel ?  

3 Answers   ABC,

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what modulation is used in landline telephone signals?

2 Answers  

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what does a k rating in a transformer means?

0 Answers  

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What is the role of the 50 STUB protection at a GIS 400KV substation with SIEMENS protection relays?

0 Answers   Power Plant,

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Why does the speed regulating system adopting I controller have no steady-state error? In this single closed-loop speed regulating system, when the input of the I controller Un=0, what is the output voltage of the regulator? What factors do the output voltage depend on?

0 Answers   Sterling Wilson,

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What are various power system instabilities and what are their effects on power system operation?

1 Answers  

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why the field winding of synchronous machine is excited by dc source

2 Answers  

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i am working in automation feild my question is that how to find the KVA of transformer.

3 Answers  

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