what happens if power factor is maintained at 0.9?give me
the answer in technicall way rather than telling the
penality n all

Answer Posted / hirosh babu

kw=kvacos(phi)... so larger the value of pf, smaller is the
amount of kva required for supplying active power... for
example if we require 8kw power output and pf is0.8 kva req
is 10.. but if pf is 0.5 kva req is 16... also for
transfering a const power if pf is low,... then value of
current will be high , so cu loss increases so does the
size of conductor..

Is This Answer Correct ?    3 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the principle of operation of CFL ??

2207


STATE WORKING OF VACCUM CIRCUIT BRAKER?

1471


i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not.

1548


What are the commonly used schemes for the bus zone protection?

549


Define settling time.

722






we specify current in case of feeder but in case of distributor voltage, why?

1381


When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?

1365


What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

5594


Can we convert off line transformer to on line transformer

1479


Define what is power quality meter ?

671


What is ramp signal?

646


1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to reconfirm its base capacity.

1549


What is the principle of HIGH SPEED DIRECT DRIVE MOTOR ?

1528


what is the maximum permissible limit value of leakage current and leakage counter reading to replace lightining arrester?

4634


what is buffer resistance starter.?.What is the working principle and where it is used..?

1570