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hi friends this is a newcomer in your community of enthusiastic peoples. i am preparing for SSC (CPWD JUNIOE ENGG EXAM FOR ELECTRICAL) pls guide me on the same how to crack it? PLS LET ME KNOW IS ANYONE THERE WHO PASED IT? CAN I GET THE QUESTION PAPERS OF PREVIOUS EXAMINATIONS?
if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?
explanation of mesh bus bars
electromechanical relay type identification example : type=tjmh t-stants for j- m- h-
Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?
what is 3rd Harmonics? how it is generated in alternator
I want to replace the 3 KW DC motor with AC motor so what should be the rating of AC motor? Details Of DC motor to be changed with AC are - Kw - 3, Vf - 310, If - 0.15, Va - 400, Ia - 13, RPM - 2400
I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....
how u measure/calculate renge of capacitor,capacitor has no any rating tag.what is the theory of measure of capacitons.
in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformerÂ
how braking & making capacity of circuit breaker is calculated?
what is counter poise conductors
why does a dc machine has high efficiency while working as a generator than as a motor ..
in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?
what parameters are should nessary for control technic dc drive(in rolling mills)?
