when an induction motor runs on load.at that time if we reduce the supply voltage the current increases.But when it runs without load,if we reduce the supply voltage the current also reduced.why?.i checked it practically also.

1 Answers   Birla,

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what is the difference between energy efficient and high efficiency motors

2 Answers  

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why we r using alternator instead of d.c generator and induction generator

1 Answers  

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what is function of rtu?

1 Answers  

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What is the difference between KV,KVAR,KVA,KW?

6 Answers   L&T, PowerHouse, YUI,

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what is the difference between a frequecy converter and an electric inverter?

2 Answers  

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what is a 3 phase power formula ?

5 Answers  

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what is the formulae for selcting capacitor bank to increas pf

3 Answers  

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what is the meaning of transformer short circuit test?

7 Answers   HZL, L&T,

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technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"

0 Answers   Wipro,

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Hello friends., my question is related to testing of current transformer... A Ct having knee point voltage of 750 volts., and I have two step up transformer's of rating 230 v to 440 volts., can I obtain the value of 750 volts by using the two transformer's.... If yes then how could I connect the transformer's to obtain knee point voltage?? thank you in advance

1 Answers   ABB,

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what is the value will come when megger the phase to phase ,phase to neutral ,phasae to ground ?

3 Answers  

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