plz tell me about BACK emf and how it generates?

2 Answers  

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A 10 kva ,400v/200V , single phase transformer with 10% leakage impedance draws a steady short -circuit line current of

1 Answers  

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DO MEGGER TEST APPLIED ON SURGE ARRESTOR? IF YES THEN WHAT ARE THE ACCEPTED R VALUE REQUIRED FOR SURGE ARRESTORS FOR VOLTAGE LEVEL 11KV, 33KV

2 Answers  

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why do we have spikes enough to burn electronic boards, when generators are not grounded

0 Answers  

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How we can make sure cable size of LT cable without any parameter.

2 Answers   Paradip Port, Siemens,

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How will you explain transformer action in case of 3-phase induction motor?

4 Answers  

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what is the function of NAT & NAC contacts in breaker control switch (TNC)??

2 Answers  

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how to calculate the no load current in transformer?

0 Answers  

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how to arrange the generator protection ansi 48 (loss of phase?)

3 Answers  

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How to improve insulation resistance of Motor

2 Answers  

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Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

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what are the things that can cause a three phase motor to crawl?

1 Answers  

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