Answer / silamparasan p.

POwer Factor is a cos angle between Voltage and current.

Answer / paramesh

real power /Uperant power is called PF

Answer / saravanan.n

true power/apparent power

Answer / gautham

power factor is the Cosine of Angle between the Applied
VOltage and current. It directly depends on the Load. If
the load is Inductive then the PF is LAGGING.If the load is
resistive the PF is leading.Power Factor takes value from 0
to 1. Unity Power Factor is the Idealised condition, means
least power dissipated and high effeciency.

It can also be calculated from R/Z and KW/KVA ratings.

Answer / sudhakar

true power(kw)/apparent power(kva)

Answer / sree

ration of power utilised and power suppied

Answer / satish m

It is the ratio of the resistance to impedance.

PF= R/Z.
OR
It is cosine of phase angle between voltage & current.

It can be improved by connecting the capacitors in parallel
to the supply.

Answer / ibrahim

real powere/Apparent power
kw/kva
R/z

Answer / srinivasan

power factor=real power\apparent power

Answer / saravanan.n

the power factor of acircuit may be defined as:

(1)the ratio resistance and impedance = r/z

(2)the ratio = watts/voltampers=trepower/apparent
power=V x I x cosQ /V X I

(3)the cosine of the angle of lead or lag current from the
applied voltage

When we use PT in HT Panel why the ratio is 11Kv/√3/110v/√3 please explain briefly with suitable formula?

1 Answers  

what is the effect of back reactive power on the generator ?

0 Answers   MRF,

what is conductor constant of raccun conductor

0 Answers   CSPDCL-Chhattisgarh State Power Distribution Company Limited,

Why TAP changer provided in primary side of HT transformer ? and why not in secondary?

9 Answers   ABB, Reliance,

whydoes the p.f of diesel generator always be 0.8 explain how will you determine the shortcircuit capacity of network

1 Answers   Dalkia,

What are various impedence in any machine

2 Answers   Engineers India Limited, NTPC,

If short circuit ratio is high is it bad or good for a machine then tell the reason...

0 Answers   Bhel,

How to find the maximum load(in KW)in a big industry, having motors,lights,lifts etc..?

2 Answers   ME,

testing of transformer

1 Answers   Vijai Electricals,

in alternator why on load terminal voltage is less than no load teprminal voltage

1 Answers  

why transformer rating comes in kva?

4 Answers   HNG, Tech Mahindra,

Safety of on line ups

0 Answers   Bhushan Power Steel, GE,