Answer / priyabrat sahoo

the fault betweenthe line isolator & cb is called stub
protection

if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

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Igfet is a

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what is difference between Motorised MCCB & ordinary MCCB?

4 Answers   TCL,

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how to determine motor size for a fan application?

0 Answers   EDC,

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I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....

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what is ring main unit?

1 Answers   Otis,

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no of rotrs poles in salient pole synchronous machine

3 Answers  

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when we megger is not damaged when we are measuring very low resistance? high d.c. voltage is produced in megger so according to i=V/R. current will be high so what is the reason ?

1 Answers  

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What is technical difference between ELCB & ELMCB?

3 Answers  

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Why earthing is required for diesel tank?

4 Answers   Greaves,

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what is the formulae of calculating voltage drop?

2 Answers  

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I have a reading off 1.5ohms at my mem my main c/b is rated at 40/6 amps in a domestic house and i was told to change it to a b curve c/b is this ok

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