what is the difference between switch yard to residential area.and how much required it.

0 Answers   GVK,

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Explain What will happen when direction of field current is changed (i.e, field excitation is reversed) in the following machines? 1) Alternator 2) Synchronous Motor 3) D.C Generator ( Shunt or Seies ) 4) D.C Motor ( Shunt or Seies )

3 Answers   NTPC, Transco,

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1000kva = how much kvar

3 Answers  

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How can CALCULAT the current carrying capacity of aluminum and cOpper cables respective of that Sq.mm ? with formulas ?

12 Answers   Bajaj, Eagle, Godawari Power and Ispat, Havells, L&T, Mascot, Polycab, SGML, Sterling Wilson,

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How to calculate cable sizes in sq.mm. with using motor KW? Any formula there?

18 Answers   Aswani Properties, BRB Cable, Construction, Hitachi, L&T, Microcool Systems, Nahar, NWPF, Reliance, Renault, Saha Bright Polytech, SGH, TATA, Techno Electric and Engineering, TFIL, Thermax,

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What is meant by locking of rotor in synchronous motor? Explain me locking in detail?

3 Answers  

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why we are useing capciter in EB meter?

2 Answers  

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funtion of choke

4 Answers   L&T,

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When alarm is activated in buccholz relay in transformer

1 Answers  

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What is the importance of Form B to state Electricity Boards?

1 Answers  

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what happen if rotor earth fault in AVR system?

1 Answers  

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how to detect the presence of underground cable(while digging road)etc. -give the name of instrument

7 Answers   NTPC,

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