please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI and secundrabad}}} TECHNICAL question papers TO MY EMAIL ID dinesh100701@gmail.com

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I have 800 Amps MG Fix type breaker It is in on line & it has been given only UV (under voltage)coil connection for tripping purpose.now it is not working properly means its getting tripp so how can i replace it or how can i rectify the problem without destrubing my load??????????

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What is the tube exial fan?

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a motor's measured current is 45amp,whereas the rated current is 38 amps but still it is running ,how?

5 Answers  

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what is the acb tripping & closing voltage.

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Is it possible to operate a synchronous 2-poles turbogenerator with a still-in-place faulted bar but electrically disconnected ???? If yes, should I act on the other phases as well ???

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draw a dol with the following rtds,stop/start,ct,vt and o/l supply is 6.6kv and the coil is 110v

1 Answers   Anglo Eastern,

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What do you understand by oldham's coupling ?

0 Answers   Godrej,

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when we connect a CT in the line will there be any loses in the line due to the mutual inductance of the CT.

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for 8 mva 33/11 kv transformer what will be the setting of differential relay on which it trip & what is the HF setting in this relay

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What is the difference between ground & earth or neutral

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what is smart grid? why we use it? explain in detals bcoz i want give presentatin from it....

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