Power factor is the cosine factor of the voltage & current
phase difference. Its a short defination. But if you go
deeply, Power factor=cos@,its depend only on load, instead
of phasewise.if you connect same load in every phase it
will show same power factor value in each phase.Because
power factor is depended upon load resistance=R & its
cos@ = R/Z,
So if you are going to calcualte the power factor of all
phase, you have to calculate all resistance & impedance of
the load. Then you can calulate the avg. power factor.
Hope my answer will satisfy you.
By using sequence components ... (+vesequence power - -ve
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Other Electrical Engineering Interview Questions
I have a shop heater with a 1/3 hp capacitor start,
induction motor driving the fan. Intermittently, the fan
motor speeds up significantly for several seconds (15-60
sec) then slows to normal operating speed. The manufacturer
suggested changing the capacitor which made no sense, but I
did it to no avail.
Could this possibly be caused by the centrifugal switch
intermittently reconnecting the start winding?
Kindly give the brief explanations for checking 12.5 kvar
440V, 25 KVAR 440V, 12.5KVAR 690V, 25 KVAR 690V capacitors
microfarad values. what is the microfarad values for the
above four type of capacitors, and give the formula
explanations briefly. I know F-50HZ, voltage, and capacitor.