how to carried out tan delta test in 11 KV alternator ?

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difference between ac series and parallel circuit

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why the flooring of substation is done with small pebbles or stones..?

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Who is the first Bangladeshi Everest climber? Where is his home district?

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what is the difference between isolator and circuit breaker

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name the types of insulatter?

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in my industry we are using 3 step up transformers for induction heaters..i.e 415/580v and other are 11/440v.in power consumption does a step trnsformer makes any difference compared to step up?? plz explain

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what is the best method of grounding in 30 MW generator?

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I've descovered that when the earth wire in a domestic electrical installation is not connected back to the board (ground) a voltage of between 9-24v is is found to be present in the earth wire. When connected at the board there is no voltage - is this normal and why does it happen?

3 Answers  

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Please sent me some previous year question papers of BSNL-JTO telecom and RRB in ELectrical Engineering to varshashahi@yahoo.com

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why the iron chains were hanged at the back or front of the trucks earlier which were touching the earth?

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After synchronization with grid what is the demand value QKVAR and how we will maintain that?

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