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 ?

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for testing busbar (33kv) hi-pot .whether we can apply DC r not.and what is the test volt for that .explain

4 Answers   WGPSN,

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What are gain margin and phase margin?

0 Answers  

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electrical resistance in human body?please dedails quick. mail.psrinivasan20@yahoo.com

2 Answers   CTS,

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why the protection turbo generators is most complex?

0 Answers   Infres, L&T,

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how to test generator protection rotor earth fault relay and locked rotor test?

1 Answers  

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We have one Energy meter for Measuring the voltage,current,power,energy(KWH,KVARH,KVAH) & power factor.The problem is that the meter does not show whether the PF is lagging or leading.So i want to know that is there any way or calculation to find out that whether the PF sign (lagging or leading) depending upon the above mentioned parameters?

4 Answers  

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what is DAR test?

2 Answers   Al-Naboodah, ISRO, ONGC,

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can u tell the difference between star-star transformer and delta to delta transformer.

3 Answers   Videocon,

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what is voltage ?

7 Answers  

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What is tan delta & PPM in transformer? and whats its IS value?

0 Answers  

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pls tel me the electric train traction motors name plate details like rpm,torue,voltage,amps,watts..ect..

0 Answers  

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