If excitation will increase, then what will be the effect on power factor? Will it decrease or increase?

4 Answers   Prozone,

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what is anode and cathode??

5 Answers   Bombardier,

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why synchronization done in clockwise direction?

12 Answers   Hindalco, NTPC,

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whta is difference between contactor and breaker.

6 Answers  

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i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

0 Answers   Bay Fishing Corporation,

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Convert a star connected network into a delta connected network.

0 Answers   Syntel, Visa,

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Explain what happens to the speed of a series motor as the load decreases

1 Answers  

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what is the size of ht cable of 33kv ht line and transformers ratings are 2.5mva and 5.5mva.please send formula also.

1 Answers  

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what is the temperature rise test? explain in brief.with formula.

1 Answers  

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Why Cables are always circular and not square or rectangular?

3 Answers  

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why we use ac system in india why not dc

3 Answers  

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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.

0 Answers  

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