Why starters are using the machines???

5 Answers   Alstom,

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Define resonant peak?

0 Answers  

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Why we choose 400kv,220kv,132kv,66kv,33kv transmission voltages for transmitting power. Why not other voltage levels.

21 Answers   College School Exams Tests, HC, HCL, Jaypee, JPMorgan Chase,

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What is the difference between ELCB and RCCB. Please define the working of both.

6 Answers  

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Can any body tell me about Hi-pot test, and why it is necessary and its procedure of testing

6 Answers  

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How we can change the direction of rotation of Induction motor? Prove it using graphical

0 Answers  

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A 10 MVA, 66KV, 50Hz, Y-connected 3-phase alternator has synchronous reactance of 0.635 Ù. It is working at full load at 0.8 lagging p.f. condition. Find torque angle, neglect armature resistance.

0 Answers   VECL,

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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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why a diode bridge is provided in vcb control circuit ?

2 Answers  

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in battery charging room we find two fuses (one in positive other in negative cables ).why it is so?one fuse is ore than sufficient?

0 Answers  

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What is servo motor? what is its purpose?

0 Answers  

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What is the meaning of 'A synchronous motor floating on line'?

2 Answers  

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