what is reactive power ? what its role in transmission lines?

Answer Posted / santosh jagale birla cellulosi

Reactive power is an imaginary power. Means its presense is
important for the flow of active power. For example, if you
put beer in a glass fastely, what happens a foam appears at
the top of glass. The beer in liquid form settles at the
bottom of glass. Now what ever foam appear at the top of
glass is called reactive power i.e. imginary power(KVAR),
whatever liquid settled down to bottom of glass is apperent
power OR ACTUAL POWER (KW) and the addition of both means
what the total quantity you see in glass is ACTIVE POWER
(KVA).

Is This Answer Correct ?    17 Yes 16 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Starting times for soft starter & power factor is thier any standard or datas available in manufactures list. Kindly suggest.

1467


why ct ,cvt should be stored in a vertical position?

2130


What is VCB? where it is installed at SP. What is SP?

1740


What do you mean by cogeneration? What its working principle?

2771


how to copy from plc ge fanuc versamax series,all input and output, adress, and printout.

2048






1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?

1377


What is pole of the system?

672


Electrical 'C' license full abbreviation , and full form

1334


what is quality factor in series resonance circuit and calculate the factor of voltage magnification? how it happens?

1497


What happens to voltage when current is zero?

775


Describe the test procedure to determine the vector group

1601


In parallel operation time both NGR’s close or not close if both close what will happen

3278


what is the pre charge circuit,what will be work which function it will be use plz tell me

1456


What is the cut-off rate?

714


whats the differece between Exd and Exe

4286