requirements for making parallel operation of Uninterrupted power supply

2 Answers   Emerson,

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how can i reduce sparking without stepdowning the voltage

0 Answers  

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what will happen if dc motor given ac supply

11 Answers   Mahaveer,

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what type of questions are asked and howmwny questions belong this catagory?

0 Answers   RRB,

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What are the advantages of thermal power plant?

0 Answers  

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Though transformer consist winding which usually cause reactive power change in both generator and motor but it wont affect reactive power passing through transformer why?

2 Answers   Jindal, Reliance,

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What voltage is used in Directional earth fault relay? and why?

5 Answers   L&T,

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Which type of material used for fuse wire & solder wire.

13 Answers  

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explain the types of drives

0 Answers  

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

0 Answers  

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why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?

0 Answers  

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