Answer / vinodsukku

power fator is developing wherever magnetising power
developing, it can not be eliminated ie, in motor
electrical energy is converting mechanical energy through
flux , the production of flux is the cause of reactive power

Answer / prajeesh

Power factor means the leding of lagging currents... It can
be maintained near to unity by using capacitor pannel if
lagging n motor if the current is leading....

what are the various types of earthing? plz give brief detail of all. also post pictures if u have.

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what is the difference b/w circuit breakers and relays?

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If u have Powergrid model question papers Please send to below mail ID rajutheprince@gmail.com

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How to conduct Magnetic Balance Test, Measurement of Excitation Current (both on HV- and LV-side) and vector group on a 1000 KVA distribution transformer. There is a neutral on HV side.

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how  do you choose the cable size as per amps rating & the voltage drop for the same.

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choose the non-switch device (A) transformer (B) diode (C) transistor (D) IC

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why dose not transformer not rotate ?

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why transformer ratings in kva?

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WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

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how vfd drives energy save

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