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.

why power not passes in plastic and rubber material

0 Answers   GPG,

i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors

0 Answers  

explain in detail HV & LV bushing connection in power transformer (110 / 11 kv 16 MVA)

6 Answers   TNEB Tamil Nadu Electricity Board, wbsedcl,

What is mean by voltage & current.

12 Answers  

what is neutral grounding resistor?

3 Answers  

In a synchronous motor armature current flows due to revolving flux which in turn rotates the load,but in no load condition armature current is zero hence thr is no revolving flux then how motor rotates?

9 Answers  

why we use separate earthing for two seprate machine??

1 Answers  

how a flip flop can be used as a latch?

0 Answers  

Which is stiffer between salient pole rotor and cylindrical rotor synchronous machines? Justify your answer.

1 Answers  

i have 60Hz motor, can i run it at 50Hz power supply ???

2 Answers  

Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.

0 Answers  

explain harmonics in simple words..........

3 Answers   HMT,