if u give d.c. supply to transformer primary then what happen.&why??????????????

4 Answers   DCS, DRDO, HCL,

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what is the purpose of shading ring or shading coil in electrical equipments.

0 Answers   BARC,

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Can anybody tell me why inductors draw lagging current and capacitors draw leading current from supply?

4 Answers  

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Why we used 690V in ACS 800 drives.Why dont use standard voltage like 415v or 1.1Kv

0 Answers   India Cements,

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Rccb trip or not with out neutral connect in three phase welding machine

1 Answers  

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Explain types soft starters?

7 Answers   Siemens, TCS,

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What are the three major categories of error?

0 Answers  

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In any plant or substation main incommer voltage RY - 415 V,YB - 400 V, BR - 387 V(in commer feed from transformer 11 Kv /0.415 KV) why found voltage differance in each phase? plant have not self power plant it is depend on outsource grid

2 Answers  

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what is transformer

63 Answers   ABB, Advance Power Controls, CERC, Electrical, Electrical Supervisor Competency Certificate, ETA, IBM, Jindal,

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what will happen to give a dc supply in ac motor?

2 Answers   ABC, Indian Navy,

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how many Classification of fire extinguisher

0 Answers   Juniper Networks,

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Why 1/3 is used in symmetrical components?

0 Answers   ABB,

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