Answer / vidya

power factor:>it is the ratio beteween active/real power to
apparent power.
mathmatically power
factor=
VICOS@/VI.

Answer / sri krishna

aktually power factor is the ratio of apparant power and
aktual power flow in the cirkuit.

i.e. cos # = kva/kw

in kommon wrds.. power factor is the amount of power
konsumed in the unit power supplied.
always power factor should be high.
as high as the power factor, the efficiency vl b high


for any douts or diskussions kontakt me on
srikrishna_2020@yahoo.com
or vizit http://myelektricity.blogspot.com/

Answer / su

power factor is the cosine of the angle between voltage
phasor and current phasor.

Answer / dj

Power factor is define as degree to which a load is matches with the pure resistive load.

COS#= Real Power(watt)/Apparent Power(VA)

Apparent power (VI) is the power when we assumed that load is pure resistive

While Real power is that power our actual load receive.
We just comparing our load true load with pure resistive load.
i.e when unity means our load is equal to resistive load.

Answer / pillay

grow up and google for your answer you can learn more than
bits and pieces.

Answer / raghu

power factor = true power(kw)/apparent power(VI)

how we can check new PT ? without name plate.

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There are two nos of 33Kv/11Kv 5MVA transformers conecting through HT cable from substation having metering at substation itself.One transformer used at a time another remains stand by.Further 11 nos of 11Kv/440V transformers are attached on it and each transformer is having its own Power factor correction panel.Now one 33/11Kv transformer at no load condition/Stand by condition is having power factor in leading side upto 0.21 and while when another tranformer at same situation have power factor in lagging 0.42. Now one thing is clear that transformer one is having 1.5 Km long 33kv cable due to that PF goes in leading side and another is having only 250 mtr length remains him lagging. Now i want to know that how i can maintain the Power factor at no load/ stand by position though both are behaving in seperate manner.

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