Answer Posted / mohan

cctv is a closed circuit television,on roads to control
traffic, in banks,we can install this type of equipment
where the crime is going continuasly, and super markets
many more.....for more details mail me mohan.burra@gmail.com

Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above

2178

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what will happen if earth of 33 kv cable (earthed system) is not connected to earthing pit?

1999

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sir am giving jspl exam on 19th oct . i belong to eee, so plz send previous question papers ..........to dis id abhilash203@gmail.com

2531

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why dc is used in control circuits for MV & LV switchgeras instead of ac

1918

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3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw

1930

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why we use circuit breakers for switching instead of normal switching device?

1834

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how to commissioning the genset with amf panel?

2363

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Why Neutral Isolation is required?

2190

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what is your aim

1867

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What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

1969

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what happen if drive input fail momentry at 48.5 HZ frequency?

1872

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HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.

1916

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what is smartµ grid technology?under coal gassification?

1913

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what is the question paper model for section engineer in RRB

1836

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What is the purpose of stand by earth fault protection for transformer ?

2046

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