Clearly Define Active,Reactive,Apparant power.Which
applications used which power above metioned power?
Answer Posted / jayesh pillai
square of kva= square of kw + square of kvar
here, a power system possess apparent power i.e. kva
it is divided into two components i.e kw active power and
kvar reactive power
kw = kva*(cos phi) and kvar = kva (sin phi)
here actual power i.e. responsible as a loss component and
thus losses occurs in line due to active power
reactive power does not does any useful work but it is
responsible for building up magnetic field in motors or any
inductive equipments
| Is This Answer Correct ? | 4 Yes | 5 No |
Post New Answer View All Answers
what is the maximum temperature rating of a thhn insulated conductor?
what is the safe meggar values for motor, transformer HT, LT and Cables? IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace. why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero
What will be in Mahagenco Trade Test Exam? I want to know the same.
Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA
How to run a three phase motor into single phase........
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
if the number of poles generated in stator and rotor side of an induction motor are different then what will happen and why?
when generator short circuit condition, the current how dissipates. or at short circuit voltage not available then current how can flow?
Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?
Is there any relevant technique to produce power from light and heat energy of the sun simultaneosly from same rays of light?
Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks
What are the advantages of speed control using thyristor?
I'm looking for a softcopy manual set for a Credence ASL- 3000. Anyone know where I can get it?
Define cut-off rate?
Show the schematic arrangement of diesel power station layout and give its principle of operation.