why voltage ratings of xmission are in 11, 33,66kv and why not 11.5 ,16,19 or any other

2 Answers   HCL,

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The earth pin of some three pin plugs are seen split. why?

1 Answers  

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Why we have short circuit the secondary of the transformer

1 Answers  

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what is the difference between energy efficient and high efficiency motors

2 Answers  

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what is the meaning of 0.5ohm Resistance

0 Answers   Vardhman,

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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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Can someone explain how does an IDMT relay works.

1 Answers   AFM,

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what is the basic differnce between ground and earth

3 Answers  

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What are the usege & different between UPS & batteries with charging system in in Substation?( UPS 120V AC & battery charger is 120v DC)

1 Answers  

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IN A HT CABLES i.e. 1.9/3/3 kv, what is the meaning of 1.9 and 3.3.

1 Answers  

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how an electron flow in a wire. can it flow like a car running on the road?

2 Answers  

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What is excitation?

2 Answers  

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