i want prepare power grid exam what are book we want refer for electrical ?

5 Answers  

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What is the difference between earth fault and restricted earth fault protection?

1 Answers  

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how much air gap in induction motor as per the Indian standards?

1 Answers   Coast Guard,

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why dc exicitaion used in ac motor....?

2 Answers  

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New istallation how many eathing have one transformer? Names of earthing connect places?

10 Answers  

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AC is the magnitude of sinosudial-wave but we use cose value to determine power factor instead of sine value.

2 Answers  

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WHY IS THE EARTH FAULT CURRENT ALWAYS LESS THAN THE NORMAL CURRENT??

0 Answers   Teil,

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what is the difference between KW and KWh?

9 Answers  

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I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

0 Answers  

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how to detect the presence of underground cable(while digging road)etc. -give the name of instrument

7 Answers   NTPC,

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I have three phase 400 KW,390 A MOTOR.For this motor which type of Cable is required....specifically rubber cable required. Can anyone help me..

5 Answers  

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advantage of cu cable over al cable

4 Answers   Havells,

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