Answer / ckm

electrical power consumed by any device is the product of current carried by it and voltage arcoss it.......or...rate of change of electrical energy per unit time...................electrical energy is the product of power consumed and time

Answer / varaprasad inavilli

power is the product of voltage,currnet and power factor(in AC system)

power is the product of voltage,currnet (in DC system)

which motor gives constant speed?

7 Answers  

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armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?

0 Answers   APTransco,

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For 300MW and over a distance 250 km, what voltage be selected? and no. of circuit?

5 Answers   DPL, NTPC,

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In AC Drives How can change & control its output Frequency?

5 Answers   Jindal,

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i HP = ?? 746 watts or 735.5 and how??

1 Answers  

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Why not using Air circuit breaker at High tension side?

1 Answers   Wipro,

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In DC current-excitation to transformer, why it sucks more current? Eventhough there is no power transfer between primary and secondary? R is very low so it should suck less current only na thn y its current increases?

2 Answers   Cairn,

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ro plant grundfos bm30type pump.we start the pump using siemens 3rw 4423-1bc44, 30kw soft starter. bur its failier frequently. so we planed to change the dol starter. sp please tell me any budy its possible or not翿შ†

1 Answers  

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What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?

0 Answers  

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How will you utilise electrical power? You can start from the generating station.

0 Answers  

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WHY HOLDING CONTACTOR OF MOTOR STARTER IS CALLED NO VOLT COIL.

3 Answers  

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Why does the rotor rotate?

1 Answers   Machino Polymers, OPTCL,

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