What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker

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In a 3Ph induction motor(old) 6 wires came out from terminal & not mentioned u1,v1,w1,u2,v2 & w2. how can find out the terminals? how can connect to star delta starter??

1 Answers  

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why transformer neutral and CT Secondary neutral is connected to earth?

3 Answers   NCC,

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Why 30kw 40 hp 4 pole 3ph induction motor over heated?any steps on reduction in heat?

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Ps Explain YWY,AFWY Type Cable

1 Answers  

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What is a dominant pole?

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What is the reason for using a GE G101 MCB in place of an EP102 MCB if both are capable of AC circuit protection?

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i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com

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Why substation battery room is coulered black?

1 Answers  

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which type of harmonics minimum produce in 12 pulse rectiformer transformer? a)3rd b)5th c)7th d)11th

4 Answers   Power Grid, Powerica,

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What is the source of dependent source ?

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How i can identify the 220V and 110V power supply equipment? No tag number.

4 Answers  

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