Answer / md. zakir hosen

The Cosine value of the angular difference between Voltage
and Current is known as power factor (PF) also the ratio of
active power and reactive power is known as PF.

for more and earn money online visit:
http://a2zengineering.blogspot.com/

Answer / manesh.k

The angle created between voltage & current is referred to
as Power Factor.It depends mostly on the load.This plays a
great role in determining the power a load takes.

Answer / maneshwarier

Sorry,Mr Zakir bhai is correct,it's the cosine of angle.

Answer / santhoshbca

The power factor of an AC electric power system is defined
as the ratio of the real power flowing to the load to the
apparent power [1] [2], and is a number between 0 and 1
(frequently expressed as a percentage, e.g. 0.5 pf = 50%
pf). Real power is the capacity of the circuit for
performing work in a particular time

Answer / ramakrishnan

PF = KW / KVA

It is the Ratio of KW and KVA

Answer / prakash.p

difference between incoming power and out going power (or)
difference between RMS value by apparent value

power factor= kwh/kvah

Answer / arun.b

COSINE OF ANGLE BETWEEN THE VOLTAGE & CURRENT

Answer / a.sathish

acutal power by apperent power

pf= w\v*I

Answer / rekha.k.m.

pf means it is that portion of current which is used for
doing active work .e.g if the pf is 0.8 it means that 80%
of the current is taken for doing active work and the rest
20% is used for creating magnetic field.

Answer / rajeev democrat

1. It is the ratio of real power(active) and apperent power.
p.f = kw/kva
2. It is the cosine angle bet voltage and current.
It is denoted by the angle of cos.
3. It is the ratio of useful power to total power in the circuit.
4. In the resistive circuit power factor will be one bcs of no any reactive power here(ideally).

Can we use the 60 HZ transformer/rectifier/Motors/Coils in 50 HZ? if not so, why?

3 Answers  

How much amperes needed for starting of 4HP motor?

1 Answers   CM Smith Sons,

What is the necessary condition for stability.

0 Answers  

WORKING PRINCIPAL OF MCB

5 Answers   TATA,

In transformer which temp should be less oil temp are winding temp?

7 Answers   TCS,

How to calculate the Efficiency of Chiller

0 Answers   Knight Frank, L&T,

How to Calculate Contracted Maximum demand using motor Hp or Current

3 Answers  

Why and when NGR panel required. Is it necessary to design a NGR panel for a 6.6kV Alternator paralleling with Grid????

0 Answers  

how can you calculate the value of external resistance inserted in a slipring industion motor? (eg. 110 kw / 990 rpm/50Hz/stator v-415/stator Amp-195/Rotor V-440/Rotor amps- 151.)

6 Answers   Bosch, NMDC,

What is class ab operation?

0 Answers  

why all transformer colour is same?

3 Answers   OPTCL,

what are the types of electromagnetic forces developed in practical transformer?

0 Answers   APC, BPCL Bharat Petroleum, Electrical Tech,