what is the diference beteween dedicated earthing & body earthing?

1 Answers  

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how does grading rings & spacers in transmission line works? Working Principle?

0 Answers  

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what is the equation of insulating resistance of motor???

1 Answers   Birla,

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why are we adopting 132kv,220kv for transmission rather than using 440kv at all transmission lines as it gives lower losses?

2 Answers   APGenco,

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what is difference between vcb and mccb

4 Answers   APTransco,

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CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??

0 Answers  

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What does substation operator do in substation?

2 Answers   ABB,

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why need of ac exietation in alternater.

2 Answers  

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Please explain, how to test vector group of tranformer(Delta y1) . Thank

0 Answers   PGCB,

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Mention the methods for starting an induction motor?

0 Answers  

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Why is the air gap between the pole pieces and the armature kept very small?

0 Answers  

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Why fuse is? What will prevent by fuse?

2 Answers  

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