How can we calculate the capacity of the capacitor bank
attached with the Main panel, when we know the capacity of
the panel installed in KVA Rating?
Answer Posted / sanjeev nair
The formula for calculating the Capacitive kVAr required to
compensate inductive kVAr is kW*sqrt(tan_angle1-tan_angle2).
In your case, you have to check the present power factor
and then the kW.
Suppose, If you have load of 50kW and the power factor is
0.8 and you have a plan to improve the PF to 0.95 then as
per the above formula the Capactive kVAr required to
compensate the inductive kVAr would be 21.
Besides, one should understand and work on the application.
ie, you can go for a 20 kVAr capacitor bank as per the
above if you have 50kW motor working on a pf of 0.8. If
both load and inductive kVAr is varying, then you have to
go for automatic pf control system with suitable banks to
compensate the inductive kVAr.
| Is This Answer Correct ? | 4 Yes | 3 No |
Post New Answer View All Answers
How much costly in percentage wise is sandwich busduct costly than air insulated busduct of any rating?
At what speed an electric car can run with 2 HP motor of weighing 400 kg?
How does "OUT OF STEP" relay ,for Synchronous motor protection, work?
How out of step protection relay works?
Why do we pefer VCB over OCB?What are the advantages of VCB over OCB?
What is “pu” in ee?
from which subjects most of the technical que will b asked for hpcl(electrical).pls help me
how to produsing geretor power
What is the safety of UPS?
what is the voltage regulation for unity and zero power factor?
What is dc current source? Differentiate between ideal and non ideal current sources?
What is synchro?
How we calculate the Multiplying Factor of Kwh meter for 3 phase alternator.
list the type of vfd? wich is sutable for heating kiln?
How to Calculate Current Rating of SDFU (Switch Disconnector Fuse unit) for Protectionof Capacitor Bank connected to Busbar of 800Amp,in LV side of 11/0.433KV, 250KVA Transformer?