wat is the difference between real power and reactive
power..which is useful..?and how it s useful..wat is the
effect of these on a power system...

Answer Posted / saad

Active power
Which iz doing the real work lighting heating etc
Reactive power
Which iz used for the magnetizing of motors,transformers
and generators coils.
active power iz use ful but with out reactive power u never
magnetize any motor transformer or generator u can just
only improve the power factor to reduce ur loss.
KVA * PF = KW
for example
100 * 1 = 100 KW
IF pf 0.8
100*.8= 80KW

Is This Answer Correct ?    1 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

why does make gain margin and phase margin on same plot.?

1637


we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

1225


What are the classifications of oscillators?

684


what is cause of static electricity? I experience shock when i touch metal equipment in a room ,furher check shows earth leakage showing 80ma at the DB near to the 400 MCCB?

1458


why any centrifugal blower draw more current in starting. consider id fan and fd fan?

1372






What is EMC filter in VVVF Drive ?

2131


what's prime importance of protection in electrical system.if protection system don't work properly what can happen in electrical system?

1435


defination of transistor controlled series capacitor

2202


what is booster? and how it is connected in a circuit?

2024


What is open loop and control loop systems?

692


What is the use of oil in transformers?

631


what is electrical machines

3013


what kind of quetions will ask in BHEL in interview? Plz help me?

1576


Diagram on interconnectivity of 11kv transformer with RMU (i.e, one incoming and two outgoing or two incoming and one outgoing)

2217


why we use the 100% and 95% stator earth fault protection for the synchronus generator ?

1835