Answer / yogesh raste

Power factor is an cosine of angle between voltage and
current.

Answer / mani777

pf is cosine (cos theeta) between voltage and current
pf= real power or reactive power/apperent power

pf=kva/v*i

Answer / dhivyabharathi

It is the ratio of resistance to impedance.cos@=R/z.

Answer / ravindra

pf tells that how much amount of power delivered by the
source from their total power. in ac ckts it is Cos(q)=p/vi,
ac ckts have v and i both sinosoidal fuction so it comp up
cos q but in electronic ckts cos q never used . so pf=
delevered power/total power , formula used for electronic ckts

Answer / deepu

power factor is define by an angle by which we mesure active power from apprant power

Answer / muthukumar

the cosine of the phaseangle between voltage and current

Answer / isk

it is the ratio of real(active) power delivered to the apparent power

Answer / irshan memon

It is the measure of how effectively we can consume the electrical energy that totally depends upon the cosine of the angle b/w the voltage and current and this angle become greater than 90 or less than 90 degree depending upon the load that is capacitive load (>90 degree)or the inductive load
(<90 degree)

Answer / sajjad

Electric element have angle between phase voltage and phase
current,power factor is cosine of that angle.

if we want ot select cable size with reference to load current it take than what is the formula and it is same for aluminium or copper?

3 Answers  

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2 Answers  

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4 Answers  

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3 Answers   Areva, Kim Yew,

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1 Answers  

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0 Answers  

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0 Answers  

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1 Answers  

What is the transfer function?

0 Answers  

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0 Answers  

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1 Answers  

What it is the diff btw Package & PEC AC's????

2 Answers   Emerson,