What is Grounding? any difference b\w earthing? if yes plz explan??

3 Answers   ABB,

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why heat produced at junction of two different conductor. what care should be taken to minimize it.

11 Answers   Birla, Maihar Cement,

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what is first ground fault & second ground fault. This is used in rotor protection of alternator.

1 Answers  

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Why we oil in tranformer/

5 Answers  

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basic of electrical information where i can get? plz send the website which you know?

1 Answers  

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What is bus-bar?

1 Answers  

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I have a 600VA UPS for computer only. It holds for 20minutes only. 1. Can it be upgraded for longer period.? 2. Can it be used for one ceiling fan and a tube light? If yes, how to upgrade?

11 Answers  

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What is the Polarisation index value ? (pi value)and simple definition of polarisation index ?

15 Answers   Essar,

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If any HVDC line is going with positive & negative(the negative usually have return path of current with earthing electrode). Now the question is if this HVDC earthed electrode which is using as return path and earthed any nearby 400kv or 220kv AC substation equipments. which will be the impact of this on AC substation & its equipment, how severe may be this and what should be the minimum distance require between HVDC earthed electrode and AC substation equipments? It's really an high engineering level question...Dare to answer and increase your knowledge.

0 Answers   MEIL,

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why tan delta test is carried out in the power transformer? which parameter are measure?

1 Answers  

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what is the significance of positve n negative voltage regulation .on alternator

1 Answers   TCL,

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how to calculate KA rating of C.B?explain with Formula.

1 Answers  

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