Answer / k.prakashchandra

LBB relay is for failure of breaker to trip , and back up protection relay ( usually EM ) is for failure of main relay ( usually electronic )

Rules and standards of electrical control wiring ?

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I do wonder why current is present in neutral wire?i check single phase lead current feeding air conditioner...on its phase its current was 10A while same was 10A in neutral...as we know in neutral voltage is zero so if voltage is zero then how current appears on amp meter? my second observation is (just imagination)when I touch phase wire it give me shock but when i touch neutral nothing happens although as above its carrying current(amps) third but with same logic...as in simple Alternate current sine curve there is + and there is negative peak.means every time phase changing so how come every time same phase and same neutral stand (pardon for english mistakes)

1 Answers  

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A 6.6 KV motor breaker is try to Drack OUT by me while the motor running. What will Happened? a, will Trip. b,Drack Out lever will not access c, will get shock d, noting will happened

4 Answers  

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can alternators work at leading power factor?

2 Answers  

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How much maximum power can be transmitted on 66 KV transmission line?

1 Answers   Konark, NDPL, Torrent Power,

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hou we find and calculate the maximum lode capesity of transforer?

1 Answers  

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what role neutral plays in electrical circuit? If neutral is not there what will be the effect

1 Answers  

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what is the role of transistor in Circuit?

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why we calculate only 11kv 33kv and 132kv ... why not 10kv 20kv 45kv?

3 Answers   Bhel, ISMT,

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What is meant by reset level of the relay?

0 Answers  

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how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test.

1 Answers   CPCL,

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who invented electricity?

20 Answers   L&T,

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