Answer / k.prakashchandra

We have only 1 phase and 3phase supply systems

What is Biased Generator Differential Relay?

2 Answers  

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What is different between MCB & MCC & isolator switch

1 Answers   Standard Chartered,

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what is difference between RCB,RCCB &RCBO?

3 Answers   ABB,

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why we use 630mm single core cable for transformer secondary side and why two neutral cable

0 Answers   Technicare,

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How can we check ELCB trip current sensitivity How can we check earth resistance value

2 Answers  

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wat s the electronic device used in the fan regulators recently?

2 Answers  

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Vibromotor 252MV 1/4HP2P..what is mean by 252MV?

0 Answers  

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What is CBCT ? Why & Where it is used?

14 Answers   BCT,

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

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what is effect of unbalaced load -- say R 15A, Y 25A, B 10A

4 Answers   TransWorks,

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Whats the use of earth pits? and it will function? whats the natural earth value? How to improve ur earth resistance?

3 Answers   Anwar Ispat,

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What is dc induction motor ? and how to control its speed ?

1 Answers   HAL,

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