Clearly Define Active,Reactive,Apparant power.Which
applications used which power above metioned power?
Answer Posted / hareesh k soman
Apparent Power, Real power & Reactive power
For example if we give i/p to a electrical equipment in
product of voltage n current (VxI)that is apparent power
(KVA)i.e that device seems to be work in that power but
unless that device is pure resistive its consumed power will
depend upon the power factor i.e its actual consumption will
not be equal to what we had given as i/p power due to
inductive/capacitive load.
so its actual consumption is said to be Real/Actual power
thats why we multiply cos phi to VI (KW).
If its a pure resistive load apparent power n real power
will be equal .that means unity power factor(p/f=Real
Power/Apparent Power).
power generated due to inductive/capacitive load is called
Reactive power.
If Power factor is not unity there will be flow of reactive
power. this will results high loss .i.e this will flow
reverse to generating station there by transmission cable
wont be capable of carrying this extra power, so conductor
will break n cu loss will increase.........
| Is This Answer Correct ? | 17 Yes | 7 No |
Post New Answer View All Answers
what is the meaning of impedance protected in instrument cooling fan
working principle of AC Servo Motor with its construction
How two nos. 130 kw D.C motor get synchronise using D.C drive.
Why does the rotor rotate?
How does PLC work for sychronising of Two or more DG sets?
Why the cores of large transformers build up of circular cross section?
Define rise time.
What is the gross weight to copper ratio in slip ring induction motor of 4000 HP,6.6 kv, 372amp, 992 rpm GE motor.
How many types of electrical earthing are there?
what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY
Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha
# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in
Dear friends I want to design busbar for1600 kva transformer(i.e2100 amps) what are all the factors to be considered before selectinga busbar what are all the standard sizes of busbars what is the formula for finding current of copper and aluminium busbar
Explain what is electric traction?
if a.c supply is given to the motor,, what happen?