Answer / rajendran.m

Cosine angle between voltage and current.

P.F = kw/kva

Answer / a.balakrishnan

RATIO BETWEEN ACTIVE POWER AND APPARANT POWER IS CALLED
POWER FACTOR.

POWER FACTOR= ACTIVE POWER/APPARANT POWER
= VICOS/VI

Answer / gururaj

it is angle betwen voltage & current.it depends upon the
type load

Answer / partha pratim debnath

Basically power factor is the cosine angle between the
active power to the apparent power.

It can be analysed through by power triangle.

p.f.=active power/apparent power
kW/kVA

Answer / prasad

POWER FACTOR IS COSINE OF ANGLE BETWEEN VOLTAGE & CURRENT
IN AC CKT. HOWEVER IN SIMPLE TERMS IT CAN BE DESCRIBED AS
EFFICIENCY FACTOR OF LOAD IN p.u. IT SIGNIFIES WHAT AMOUNT
OF ELECTRICAL ENERGY IS REQD BY LOAD WITH A GIVEN P.F.
THUS IF TWO MOTORS OF SAY 80 KW WITH ONE HAVING P.F. 0.8
& OTHER HAVING PF 0.85, THEN FOR RATED LOAD FIRST MOTOR
WILL REQUIRE 100KVA WHILE OTHER MOTOR WILL REQUIRE 94.1KVA
OF ENERGY

Answer / ranjana chauhan

IT IS THE RATIO OF RASISTANCE AND TOTAL INPEDNCE OF THAT
CIRCUIT AND DENOTED BY COS PHI.
P.F. = R/Z

Answer / banamali

PF= Active power/apparent power

Inductive load causes lagging current and lagging laffing
power factor

Capacitive load leading current and leading power factor

Answer / vijaykumarht

Power factor means the power utilized versus power delivered.

Answer / shristhi

power factor is the cosine of angle between voltage and
current... in resistive load power factor is 1

Answer / vijay

power fector is a angal bitween v&c

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A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.

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