what is the Space heater? why using in Electrical motor?

3 Answers  

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Dear sir, By which formula u can calculate for a particular kv line there is a range of mw.

0 Answers  

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What do you mean by an instrument transformer?

0 Answers  

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define differential current and restraining current in relays. how to calculate it by mathematically? post the formulaes.

4 Answers   Siemens, VPEC,

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tell me about vfd

8 Answers  

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why AC signals are represented by sinusoidal waveform?WHY other waveforms not used for representation

0 Answers  

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What difference between voltage and current

5 Answers  

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what is power factor? how can we correction the power factor if this is high or low? If anyone know please please send the answer on my email id ( kumarkirshan@in.com )

5 Answers  

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I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?

0 Answers  

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how to change the load sharing between two synchronized identical alternators when both are running with Diesel engine? assume both are feeding to same feeder?

1 Answers   BARC,

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how to connect from a line-to-line connection to a line-to- neutral connection?

6 Answers  

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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

0 Answers  

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