I have installed capacitor bank at secondary transformer.
cos phi is increase. but on load (far from transormer), it
still poor. Can anybody explain it??
Answers were Sorted based on User's Feedback
Answer / jinu
capacitor bank will improve the power factor towards the
supply side only. ie if you are measuring the power factor
before the capacitor bank it will show the improved power
factor. But the same time when you measure it after the
bank it will show you the load power factor not the
improved power factor.
Is This Answer Correct ? | 19 Yes | 0 No |
Answer / heamkumar
Capacitor Bank is used to improve the Power Factor.
As you said, Pf will increase only in the incomer side.
Because you have connected the capacitor bank in the
secondary side near the incomer. So if you need to improve
the pf near load, you need to place the capacitor bank near
the load, but according to the load. So if you put the
capapcitor banks near the load side, power factor will
improve not only in the load side, but also in the incomer
side.
Is This Answer Correct ? | 11 Yes | 0 No |
Answer / joseph
Since the reactive power compensation (capacitor) is
provided on the LT side of the transformer, the
compensation will take place upstream from the point of
connection. Between the point of connection and the Load,
the reactive power still remains uncompensated. Hence, in
case the loads are not very small and vastly distributed in
the network, it is better to provide reactive compensation
at the load end itself. The only disadvantage is that
there should be arrangement to switch off these capacitors
when loads are not ON, otherwise, the capacitors themselves
would act as loads!
Is This Answer Correct ? | 3 Yes | 1 No |
first a fall caluclate the reactive power. after that
according to reactive power caluclate requied capacitor to
be arrange then u will increase power factor.
kVAr = KW {tan(cos^-1 Phi e) - tan(Cos^-1 Phi d)}
Where - Phi e = existing Power Factor.
Phi d = Desired Power Factor.
Is This Answer Correct ? | 2 Yes | 4 No |
Answer / niranajn
Because the capacitor abnk provides the ractive power
needed near a transformer but it cant provide the
kvar required by the line so the power factor is still
low
Is This Answer Correct ? | 1 Yes | 4 No |
why number of stator and rotor slots are not equal in IM?
Why derating factor os applied on Cables?
What is meant by RCCB
what are the advantages by using IGBT in VSC HVDC than thyristor in conventional HVDC
examples of resistive inductive and capacitive load
HOW MUCH MAXIMUM CURRENT TAKEN BY NEAUTRAL IN 125 KVA DG SET
What is nichols chart?
current and voltage equations for a star connected load fed from a delta connected load.
how do i calculate voltage drop-if length is 1000 meter,amps is 160a
what is the use of capacitor bands?
I have 3 1000 kva single phase transformers and I wish to replace them with one three phase transformer. What is he kva rating of the new three phase, is it 1000 kva also or 3000 kva.
What value of resistance required between Saftey earth and instrunment earth , maximum and minimum values required