Answer Posted / sandip upare
Power factor means cos of angle between real power and
active power (kw and kvah)and it should be 90 deg. that
means,power factor is unity.
Now if the angle comes down below 90 deg. the rective power
(kvarh)increases and that means your company pay extra
money for that power which we not use that is only losses
because in low power factor current lead voltage and due to
this copper losses increase and ultimately consumption
increase.
Finally purpose of finding power factor daily in any
company is that
1) To minimise the unwanted consumption
2) avoid heat losses and improving equipment life
3) and Electricity Board gives 7 per. discount in every
monthy bill if we maintain unity PF through out the month
but for that capacitor bank are required as per the load
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