how can alculate the apfc panel rating?
Answers were Sorted based on User's Feedback
it depends on type of load ,calculate avg power factor of
load than consider p.f. of transformer than you can get
value of apfc rating
| Is This Answer Correct ? | 16 Yes | 1 No |
Answer / karanth.sp
The PF of the connected load to a particular transformer is
to be asssuemed or known exactly.If the transformer is
already loaded you can kow the running PF by PF meter
connected.IF the PF is say 0.7 & you want to improve to
unity.You must add a capacitor of Total load in KW multiply
by a factor of 1.02.That is the value of Capacitor in KVAR.
Formula is PF (cos0)=0.7 Tan01=0.963
improve PF(Cos0)=1 Tan02=0
KVAR Required= P(Tan01-Tan02)=P(0.963).
This shall be devided in to number of stages as required.
| Is This Answer Correct ? | 9 Yes | 5 No |
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