Answer Posted / ariel
It is the ratio of true power(watts) and apparent power(VA).
PF=watts/va= cos teta
unity pf - the voltage and current are in phase
lagging pg - the current lags the voltage by an acute angle
teta
leading pf - the current leads the volatage by an acute
angle teta
zero pf - if the voltage and current are out of phase by
exactly 90 deg.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
What is meant by harmonic distortion?
Why GRR starts from 60% of motor speed why not less than 60%?
What is the rotor frequency of 10 Hp 1440 RPM 50HZ 415V ?
for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations
What is Diff btw Fire Alarm & VESDA System???
why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?
What is principle of Floroscent tube 36watt.
Testing report of Earthing of 3.15 MVa PTR.
what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?
solar energy light efficiency & disadvantages?
In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???
how to apply b license to c license in tneb
what is the differebt between ac and dc fuse?
What is the lockout relay
how much allowable resistance that can be difference in motor all coils?
