which relay is better , instantaneous or IDMT relay .

2 Answers  

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What is online and offline ups? how does it works?

0 Answers   Call Centre,

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what is the cable size we can use for 11kv and 33kv ?

3 Answers  

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why we use sinosidal voltage / current instead of others in system?

0 Answers  

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in the exciter the power is feeded from battry or control or whatever.and we need it in the generators for the stating . do we need it in the shutdown also?i mean the exciter>

2 Answers   Shell,

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is there or does RCCB work for single phase connection?

2 Answers  

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what happen if steam turbine trip,g.c.b not open and excitation off and on condition?

1 Answers  

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role of shunt coil in circuit breakers

2 Answers  

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In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

0 Answers  

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How to calculate CT ratio for 11KV 1500KVA Transformer 500KVA MD and 1400KVA connected load ? Note:- As per MSEB(Maharastra state electricity Board)

1 Answers  

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What is use of 3phase instead of single phase?

12 Answers   DCM, L&T,

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What is the basic of DTH.

0 Answers   IOCL,

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