Answer / selva

To nutralise the leakage Current

Answer / k.prakashchandra

To remove the influence of high voltage of the primary due
to capacitance.

Answer / nidhi thakkar

In ct very large current passes always. if it is not ground
then it will damage the ckt.

Answer / selvakumar.k

In crt high current occurs,so we neutralize the ground

what is the general Classification of Generators

2 Answers  

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Why 5kv megger used to megger 6.6kv motor or 33kv transformer why not 500v?

2 Answers  

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an amazing situation was faced when an alive distribution panel with 415 volts and carrying almost 200Amps has become short and this metal cubical showing 220 volts against neutral and earth. to redress any confusion i checked the panel with help of single 200watts test lamp which also glowing with max.intensity b/w neutral & metal body of DB. amazing situation is that i hold the DB firmly more than once with necked foot means without insulated shoes but not received any electrical shock. whereas our all running gen sets neutral points also proper grounded and this short DB was completely earthed , this is beyond my understanding . any body explain how is it possible . our running gen set neutral also grounded firmly

1 Answers  

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sir , what happen if we decrease ( approx 3 inch ) the lenth of shaft in 110KW Induction , three phase motor. actually a 110KW motor is couppled with star couplling to 120TR compressor. When we doing maintenance in compressor it is required to skid the motor backword and resulting dis- alightnment . so we want to change the tyre coupling in place of existing coupling. so it is required to cut off the rotor aprox 3 inch form driving side.

2 Answers  

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what are the dimensions for 200 kva transformer plinth (plateform),in which pcc m20 is used..

1 Answers   UPPCL,

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How to calculate amount of copper used in a motor (AC&DC), generator and transformer? Datasheet provides power rating and mass of the equipment....can we somehow use this available info.

1 Answers  

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What is a soft start?

4 Answers  

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what is the difference between star connected and delta connected motors

3 Answers   Welspun,

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What are the fire Estingushers use in electrical fire?

3 Answers  

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How can i calculate heat load ?

3 Answers   DSSR, NSN,

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what is the use of tertiary winding?

2 Answers  

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How to Decide(calculate) Bush bar size for copper and aluminiam ?

0 Answers   Essar,

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