Answer / rajeev ranjan

ACTIVE POWER-THIS IS THE ACTUAL POWER RATED IN (MW).BUT AS
FAR AS REACTIVE POWER IS CONCERNED, IT IS THE POWER RATED
IN MVAR WHICH IS NECESSARY FOR EXPORTING THE GENERATED
ACTIVE POWER IN MW.

Answer / kumaresan.g

Active Power Means actually to deliver the ac machine
( ie., It is generating power). [Power in MW (P=VI)].

Reactive power Means the load utilize the actual power it
is the reactive power. Power in mva [P=VI Cos(Theta)]

Answer / gms

CLEAR ANSWER 4U=
POWER SUPPLIED BY EXT. SOURCE IS CONSUMED IN 2 PARTS
1-ACTIVE POWER-which actually does the useful work in the machine.
2-REACTIVE POWER-which the system needs to overcome the losses in the machine.
POWER SUPPLIED=WORK DONE BY MACHINE(ACTIVE POWER) + LOSSES(REACTIVE POWER)

Answer / mukund

active power is the actual power which is used to drive any
electrical machine.
while reactive power is the power created as a result of
hormonic distortion of active power which moves to and fro
over the system until any compensation is made to it

Answer / suseendran

The power required to run a pump using a motor is active or
real power(KW).

The inductive nature of the motor windings will impose a
power whose current flow direction will be, for one half
cycle it flows from supply to motor and in the next half
cycle it flows from motor to the supply. Hence it is called
circulating current. It just flow TO and FRO between the
supply point and the motor. The power of this circulating
current is called as reactive power(KVAR).

Also this is the reason why electricity board charge us for
KW power and not for KVAR power.

Answer / a .n.thakur

Understsnding of active power and reactive power is very
much related to our life.What we eat gives power to us is
acive power but power required to our mind to do a job is a
reactive power.In a Generator steam input gives activce
power whearas excitation of field winding provides reactive
power.Like human being if generator is self excited then it
should generate reactive power to compansate for its airgap
as wellas for its connected load.

Answer / sara

P=VI real power,complex power in mw
s=VI cos(theta) reactive power in kVA
q=VI sin(theta) apparent power,imaginary power in kVAR

Answer / thilaknpti

Active power is the power work done in the machine.ie P = VI
this is active power. Reactive power is the power that
delivered from the machine that is opposite to the active
power. this is P=VI cos(theta). this is a imaginary power.
this reactive power only created in ac machines. it is the
angle between the voltae and current. it also named as power
factor.

What is control system?

0 Answers  

what will happen if dc motor given ac supply

11 Answers   Mahaveer,

i am working in automation feild my question is that how to find the KVA of transformer.

3 Answers  

how to select a air/vacuum circuit breaker.is there any thumb rule???

1 Answers  

in a plug point why the hole size at the top is large?

9 Answers   Bhel, TCS,

What is the difference between surge arrestor and surge capacitor?

2 Answers   Shreem Electric Ltd,

Rccb trip or not with out neutral connect in three phase welding machine

1 Answers  

what is earth pit , how we can measured it, what earth rods reference

0 Answers   ups,

Why there is restriction to generated voltage to certain limit for example (now 18kv) ?

3 Answers   College School Exams Tests,

how steam converted into electricity in power plant

4 Answers  

why an ac solenoid valve attract the plunger eventhough we interchanges the terminal?will the ploes changes?

1 Answers  

what is the difference between KW and KWh?

9 Answers