Answer / shal

may be up to 200 Milli volts

what is the principle of vvvf drive motor

3 Answers  

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i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result

0 Answers   IOCL,

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what is S.T?specify the range?

2 Answers  

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in our transmisison sub station why we step down firstly 132kv\33kv then 33kv to 11kv. can we direct step down 132kv to 11kv.

2 Answers  

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I BOUGHT A HAVELLS ACCL WITH GENERATOR STOP FASCILITY(i.e- BASICALLY IT IS A AUTO CHANGE OVER SWITCH) FOR MY HONDA EXK 2000S HOME GENERATOR (WHICH START IN PETROL & RUN IN KEROSENE). ACCL HAS 8 POINT. 2 FOR MAINS(PH & NUE), 2 FOR LOAD, 2 FOR GEN AND 2 FOR IGNITION POINT(X1 & X2). THE IGNITION POINT IS SPECIALLY FOR AUTO ENGINE STOP WHEN MAINS POWER RESTORE. I CONNECT THIS X1 & X2 POINT TO THE GENERATOR STATER MOTOR & EARTHING POINT. BUT WHEN MAINS FAILS THE GENERATOR COULD NOT START, BUT WHEN DISCONNECT THOSE X1 OR X2 POINT, THEN THE GENERATOR START. BUT WHEN MAINS ON THEN THE GENERATOR SHOULD START, AND WHEN I OFF THE MAINS THE GENERATOR AUTOMATICALLY STOP. PLESE HELP ME HOW I STOP THE GENERATOR AUTOMATICALLY WHEN THE MAINS RESTORE.

2 Answers   Honda,

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How can determine cable size with respect to cable length and area in mm2

1 Answers  

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WHAT IS B & C CLASS SURGE PROTECTION AND WHAT IS DIFFERENCE BETWEEN B & c CLASS SP

2 Answers   Bharti,

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What are the functions of temperature scanner in power transformer?

0 Answers   HCL,

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why generally transformer are in star to delta or delta to star used?

8 Answers   ABB,

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what do you mean by puncturing of insulator by ice -coating?

2 Answers  

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11kv has three live wires how much voltage is in its single wire(leaving the other two wires)

13 Answers   Power Grid,

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Define settling time.

0 Answers  

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