Answer / abdurrahim

Reactive power is part of Apparent power(KVA) which is
useless,oscillation between source to user.And return to
source.

To calculate reactive power,It is a sine factor of the
apparent power.

Answer / kvk surya

reactive power is some part of apparent power which is
depend on power phase angle between voltage and current

Answer / rama krishna

Power is defined as the rate of flow of energy past a given
point. In alternating current circuits, energy storage
elements such as inductance and capacitance may result in
periodic reversals of the direction of energy flow. The
portion of power flow that, averaged over a complete cycle
of the AC waveform, results in net transfer of energy in one
direction is known as real power. The portion of power flow
due to stored energy, which returns to the source in each
cycle, is known as reactive power.

Answer / ghanshyam singh

satisfied with RAMA KRISHNA, the power which is returned to the supply is called the reactive power
actual power consumed is active power while total of both these is apparent power

Answer / p.thileepan

reactive power is utilised to produce electric n magnetic
field. . ,wer as active power is used to produce torque n
rotations

Answer / kn

Reactive power is not a working power it stored power in the
form of magnetic field and it is also opposing power

Answer / keshab nath kundu

reactive power is required for producing magnetic field in
motor type load. .

Answer / kotha venkatesh

reactive power= activepower/apparentpower

what are effects of harmonics in the three phase a.c power system ?

2 Answers   AIIMS,

sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

0 Answers   Jindal,

What power factor maintain you maintain at u r organisation

14 Answers   Wheels India,

I want to merge a cable..in between two metering Cubicals which contains CT's and PT's and Energy meter..before taking merger..what are the common things required?

0 Answers  

We say that if voltage in a power system is increased,for a constant power the current will decrease (by P=VI). isn't this in disagreement with the ohms law(I propotional V;resistant const.).Since the resistance of transmission lines remains constant,shouldn't inc in voltage cause inc in current across the transmission line? I have read many articles across the net but still couldn't this figure this out. :( Guyz plz assist me with dis..:)..

4 Answers  

What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?

0 Answers  

What is the "IS" for Rising Main?

1 Answers   APTransco, NTPC,

What is PEC??Applications........

0 Answers   Emerson,

What are all the problems occured while ac generator running in leading power factor at full load condition?

1 Answers  

when the control mechanism is present for an ammeter(1-10A) and 1A current is apllied what will be the reading of the meter?

2 Answers   GATE,

state basic meaning of 'INDUSTIAL AUTOMATION'?

0 Answers  

DEAR ALL I have motors ( 10 units )each one is 90kw 380V 50 HZ 1000rpm but new local pwer is 220v 60 hz requierd rpm should be 1000 pleas what the beast solution is used frequncy converter or rewinding all motos or chang all motors thanks

6 Answers   GE,