Answer / rajashekar

There is no separate formula for calculating no load
current, It depends upon it internal losses like Wearing &
Tearing, Bearing condition and IR losses etc.

Secondly, We can see that, In Breaker circuit only NO is
used for Closing, Opening and Triping Purpose, where as
with out NC circuit it wouldnt be complete. To trip the
motor we should break the NC element.
In India normally 110 Vdc for breaker and 230 Vac supply
for Starter control wiring.

what is meant by line voltage and phase voltage in a three phase transformer?

2 Answers  

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is it possible to run a dc motor on ac supply with good performance.....?

3 Answers  

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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

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an electric bulb or lamp can operate on ac and dc, if yes then why

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What are the drawbacks of HVDC system?

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What is the difference between the impedance percent and impedance voltage ?

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why current flow to the opposite direction of flow of electrons???????????

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