Answer / koti

No

Answer / s.j.shukla

Yes. But it will cover area of protection from HV CT to LV CT of transformer. Basically restricted earth fault is a UNIT protection.

What is the operating range(tolerance) of voltage and frequency of grid supply in india?

10 Answers   BARC,

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Can the efficiency of transformer be measured with the help of wattmeter readings taken at primary and secondary side? Support the answer.

2 Answers  

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Why Closing coli supervision is not required for Circuit breaker.

1 Answers   JSW,

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in three phase 11kv transformer (11kv/433v) input( R,Y,B) output (X,Y,Z,N) the connection as follows 1 phase R -open 2phase y connected to both R and y of input] 3phase B- B what is the output voltage X to N ,Y to N , Z to N

2 Answers   Bescom,

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what is the difference between potential transformer and capacitive voltage transformer?

1 Answers  

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define briefly the function of an ac electric generator (alternator)?

1 Answers  

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what is the use nuetral wire

8 Answers  

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why we are giving D.C. supply to field of an alternator, why can't we give the a.C. supply

12 Answers   APTransco, Proman,

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Difference between MCC and PDB

3 Answers   BARC, CDS, NINL,

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what is ring main unit?

1 Answers   Otis,

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1.stranded resistance values of motors? 2.how to calculate the resistance values of single phase and 3phase motors?

2 Answers   Bell, L&T,

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how can we change the polarity of Alternating current rapidly? how frequency of ac can be controlled and changed easily?

0 Answers  

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