What are the uses of MCB & ELCB ?

2 Answers  

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difference between dol and rdol startors?

2 Answers   Vijai Electricals,

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what is through fault?

0 Answers   KSEB,

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A 6-pole, 50 Hz, 3-phase synchronous motor and on 8-pole, 50 Hz, 3-phase slip-ring induction motor are mechanically coupled and operate on the same 3-phase, 50 Hz supply. If they are left open-circuited, then the frequency of the voltage produced across any two slip rings would be

2 Answers   L&T,

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what is DAR test?

2 Answers   Al-Naboodah, ISRO, ONGC,

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If we increases the %impedance of Transformer then price of Transformer will increases or decreases.

1 Answers   Siemens,

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If the load of transformer is getting more than its rating,,,than how to overcome this problem? Suppose thee rating of transformer is 315kva and the load is going beyond than the rating say around load: 352kva... Than how can we solve this problem without deducting the load.

14 Answers   Hyundai,

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WHAT IS DC COMPONENT IN CIRCUIT BREAKER?

10 Answers  

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how to calculate busbar size? if ex:1000amps i need to calculate busbar size and what size of bar?if any example caculation pls give the formulas.

2 Answers  

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why the frequency and voltage in india is 230v and 50HZ. when compared to USA say 110v and 60 HZ.

0 Answers   Alstom,

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What is the loss of power of transformer 220kv/33kv,63/80mva of % imp12.05 at 80%load

0 Answers  

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in transformer input is d.c signal which type of emf is induced

1 Answers  

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