Answer / electricator

below 25 ohmss is acceptable, anything higher-it is
required to drive a supplemental earthing electrode.

what is power factor in ac ckt ?

5 Answers  

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Zone of protection and tripping scheme of arc protection relay.

0 Answers   KSEB, L&T, Siemens,

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at the time of starting back emf of a motor is zero.so how can it will start to run??

1 Answers  

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what are the alternator cooling system? how it is represented?

1 Answers  

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why we are connecting the alternator to a steam turbine of higher RPM then the rated RPM of alternator? For example:( connecting 1500 rpm alternator to 7600 rpm steam turbine). we can directly connect the same rpm turbine to alternator know??? is there any special reason ???

2 Answers  

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In the market there is availability of MCCB & ACB (800A), So, Where i can use MCCB & ACB for the same Rating?

1 Answers  

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How to test Power Transfomer vector group in the field?

3 Answers   Al-Yamama,

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how can electricity is produced without water

6 Answers   Bescom,

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why the transformer neutral give to the earth ?

2 Answers   Jindal, JLL,

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hi guys please tell me the procedure for mesuring the coil resistance of 3ph induction motor?

0 Answers  

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What do you mean by ratio correction factor of instrument transformer?

0 Answers  

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why the amount of voltage generated at power generating stations is 11 KV only....?

3 Answers  

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