Answer / vijay kumar

P=V * I * power factor
If p.f =1

P=V * I

Power factor means phase angle between voltage &
Current.Angle varies between 0 to 360 degree.The value of
cosine in any quadrant cannot be more than 1.so power
factor is maintained one to get maximum power.

Answer / shyamkr

we know the expression for power factor is cosine of phase
angle between voltage n current is R/Z.
SINCE r never become greater than z since r=sqrt(r2+x2)
so it varies frm 0 to 1.

Answer / jain c

power factor is the cosine of angle between voltage and
current. the range of value of cos lies between -1 to 1. So
there is no chance to become power factor as 2,3,4 etc.

Answer / bala.a

Power factor = consumed power ( Kw )/ Apparent power (KVA )

SO IT IS NOT POSSIBLE TO 2,3.4

Answer / vijaya kumar.m

Power factor means Cosine angle between Voltage and Current
so cosine rang is in between -1 to +1 so power factor unity
means one(1)
For only inductive load current lags voltage behind 90deg
For only capacitve load voltage lag current behind 90deg
For only Resistive load current and voltage both are same
phase

Answer / nimmi

It is often desirable to adjust the power factor of a
system to near 1.0. This power factor correction (PFC) is
achieved by switching in or out banks of inductors or
capacitors.that is the reason the power factor is always
maintained at 1.0 and called as unity power factor.

Is it weather conditions make any problems to the electrical equipments and if yes means is it any precautions needed?

1 Answers   Hexaware,

what is mean by dry frequency

0 Answers   Siemens, TCS,

how capacitor pass ac voltage practically?with increase frequency and cpacitance?

1 Answers   DELL,

what will happen if the bus PT fuses are accidently removed from the circuit in 6.6kV feeder?

1 Answers  

Can I use less voltage cable for neutral, since the voltage of return path is zero ideally?

3 Answers   Vijai Electricals,

Three phase power is measured with two wattmeeter for balance three phase load.the reading of one wattmeter is zero.we can conclude that the power factor of balance load is?

1 Answers  

What will be the capacity of the generator set which can be used for my 2 ton window air conditioner ?

1 Answers  

WHAT IS MEANING OF VECTOR GROUP FOR TRANSFORMER

2 Answers  

Should transformer earthing pit, to be connect to earthing mat in Substation

4 Answers  

Can clean earth cable be considered as low current cable

0 Answers  

Is there any decided or standard frequency to check the meager testing of transformer, DG set, LT Panel in the industries in a year. I means how many times we should be check the same.

2 Answers  

WHAT IS THE THUMBRULE FOR FINDING OUT THE CURRENT CAPICITY OF A COPPER WIRE?? 2.5, 4, 6MM SQUARE ETC...

5 Answers