Answer / any

directional relay compare the direction of power and current
from both the end so if get current from both the side the
it sense a fault and trip

Answer / gunasekaran

it is operating reverse power condition

What is the effect of impedance on the heat losses in case of AC system??? Does heat losses really depends on the impedance or depends only on resistive component only..??

4 Answers  

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in transmission line 11kv is step up or step down? why?

5 Answers  

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Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me

0 Answers   Sail,

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why ht motors are star connected?

0 Answers  

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If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?

0 Answers   National Insurance Company Limited,

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How to calculate battery back up time for a 400 AH battery bank installed in telecom shelter for a load of 20 Amps and time taken to fully charge this battery bank?

3 Answers  

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in india single phase is 230v and three phase is 440v but in other countries single phase is 110v and three phase is 380v why..?

2 Answers  

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Why the suply frequency in INDIA is 50HZ

2 Answers   HCL,

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in single phase converter, the no.of scr's conducting during overlap a)1 b)2 c)3 d)4

0 Answers   Engineers India,

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Capacitor panel CT is normally fixed on Y phase of the main panel.why???

3 Answers  

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1.what is the reason for transformer and lightning arrester blast in 33kv system

0 Answers   ABB,

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when we supply in primary side of transformer then the supply goes in secondary side?how it works?

4 Answers  

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