why active power is called as real power or working
component.What is the exact function of active, reactive &
apperent power.

Answers were Sorted based on User's Feedback



why active power is called as real power or working component.What is the exact function of active..

Answer / joseph

In layman's terms, Active Power (expressed as Watt,
Kilowatt etc)is the real power consumed for functioning of
an electrical load (say a Motor). All inductive loads
require to maintain a magnetic field for which some power
is consumed, which is called as Reactive Power. Apparent
Power, expressed in terms of Volt-Ampere (VA) or kilo-volt-
Ampere (KVA) does not have any function but is a
measurement value of cumulative power consumption of Active
Power and Reactive Power. The higher the reactive power
consumption of a load, larger would be the difference
between the kW and KVA. This ratio is called as Power
Factor. For example in case of a load of 100 kW and its
measured apparent power of 120 KVA, the Power Factor is
about 0.83. In case reactive power compensation is
provided through capacitors, the power factor can be
improved to Unity (1.00), wherein the Active Power and
Apparent Power would be the same.

Is This Answer Correct ?    28 Yes 1 No

why active power is called as real power or working component.What is the exact function of active..

Answer / sumitgarg

Active power----is called real power. it is VI cos(Phi).
that is usable or cunsumable by the load.
Reactive power--it is VI Sin (phi). it is unconsumable.so
we need to finesh it by any mean.
Apprant power---that does have any realtion with the power
factor.

Is This Answer Correct ?    14 Yes 4 No

why active power is called as real power or working component.What is the exact function of active..

Answer / some one

reactive power is that power that flows to and fro in the
load and it does not have any active part in the load and it
will not be absorbed by the load and where as active power
tha load absorbs tha real power ie VI cosphi apparent
power is the vector sum of the two

Is This Answer Correct ?    14 Yes 12 No

Post New Answer

More Electrical Engineering Interview Questions

what is the difference between interconnection and intraconnections in the circuit diagrams

1 Answers   NTPC,


How to design the no. of ceiling fans required in 5mtr X 10 mtr X 3 Mtr hight room?

1 Answers  


How to know motor winding is star or delta connected without see the information table and winding connection ?

5 Answers   NTPC,


What is the effect of impedance on the heat losses in case of AC system??? Does heat losses really depends on the impedance or depends only on resistive component only..??

4 Answers  


Can you explain about Restricited earth fault protection scheme

1 Answers   NCC,


How to calculate the current carrying capacity of electrical cables

16 Answers   Barqaab, Grasim, Havells, HM Cables, Janapriya, Polycab,


How to calculate the voltage drop of 4 Core 50 Sqmm SWA cable for a distance of 350 mtrs and what can be the maximum load connected to it?

3 Answers  


how to find impedance , mutual indatnce in transmission lines

1 Answers   NTPC,


generally on the roadside v hav 11kv line which is being step down to 440v line to line....so any1 can tell me which type of transformer they r using whether it is star to delta,delta to star etc...???

9 Answers   Core Solutions,


Explain what are inter-poles and why they are required in a dc machine.

1 Answers  


How to calculate the breaking capacity(like 15ka,20ka) of Circuit breaker (MCB,MCCB,ACB)

9 Answers   Career Excellent Sdn Bhd, Neona, Northern Max Engineering, Sps Renewables, Terasaki, UEM,


why motors are rated in hp?

3 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5086)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4453)
  • Electrical Engineering Interview Questions Electrical Engineering (16638)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)