Answer / nvg

This Certificate is issuing by Govt.You visit to your
nearest PWD Dept . Secretary - Industry,Energy and Labour Dept.
It is required o fill afor for exmption of Exam and submit
your last year results zerox coppies.(all coppies duly
attested). For mor information visit to nearest PWD
offficeof your state
This procidure is in Maharashra.

Thanks,

Hi friends. m 3 years drop. now d company asks in d interview d reason 4 my drop.what shud b d probable answers 4 that which may not put a negative impression.

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what is dry and wet frequency withstand voltage? why & where it is used??

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I have a question, I visit 01 site and face a problem, there is 2.5 ton Air Con working, when air con compressor is running at that time rectifier voltages are increasing upto 290-295 v and rectifier is giving main high alarm (rectifier is APC single phase, before starting compressor rectifier voltages was 230v. when air con is going off rectifier voltages are decreasing smoothly at its actual voltages 230v. Load on Genset phases is this: Red-13.5 amp AC (Air Con load), Yellow-1.7 amp AC (BTS lights etc.) and Blew-4 amp AC (telecom system load), Genset phase to phase and neutral to phase voltages are also ok. These are 10 sites having same system and same rectifier APC brand at every site 02 genset are working but the problem is same at all these 10 sites. What will be the reason behind???

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we want to feed 3 phase supply to 70 ton AC load.what will be the size of (3 phase)cable require.

2 Answers   BSES,

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when we conduct high voltage testing why milli amp. is required?

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What is the fuction of UV & how it works in circut breakers? is it one type of relay?

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what current is taken from a double wound 500kva transformer

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What is the disadventage of gland earthing(power cable) if any. ?

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how c-curve of mcb's actually looks alike?

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What is the Ohms low calculation

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advantages and disadvantages of inverse definite minimum time RELAY

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I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.

4 Answers  

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