Interested to Buy Any Domain ? << Click Here >> for more details...
wat is the role of reactive power in power generation?why
we have maintain it.
- 3 Answers
- 10187 Views
- I also Faced
- E-Mail Answers
Answer Posted / kapil soni
Electrical machines work on the principle of conversion of
electromagnetic energy.A part of input energy is consumed
for creating and maintaining the magneticfield.This part of
the input energy cannot be converted into active energy and
is returned to the electrical network on removal of the
magnetic field. This power is known as “reactive” power Q.
The Q Power flows back and forth, causing 90º Out of phase
shift between the current and voltage waveform.This
Reactive Power has one half of the Power In the positive
area and the other half in the negative area.
Unlike true power, reactive power is not useful power
because it is stored in the circuit itself.
This power is stored by
1)Inductors,
Because they expand and collapse their magnetic
fields in an attempt to keep current constant,
2) Capacitors, Because they charge and discharge in an
attempt to keep voltage constant.
| Is This Answer Correct ? | 18 Yes | 4 No |
Post New Answer View All Answers
what is mean by transition resistance of transformer?
Explain Circuit Breaker Trip Characteristics in detail.
What are the causes of unbalanced current on 34.5kv feeder Ia=0.05,Ib= 0.25, Ic=0.15 and In=0.27 prior to tripping current are balance?
Which motor connection is preferable star-delta or delta-star?
how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?
How to calculate the electrical load for a standard telecom BTS shelter and choose the DG set capacity for the same load?
We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.
What are the uses of lead compensator?
I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.
1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??
what is ground fault in ACB?
what is the difference between the characteristics of two different phase bushing of any transformer
What is the difference between Delta & Wye windings?
When we use 3 terminal resistor?
Why hydropower stations are preferred solution for meeting peak loads in grids?
