Answer / kuldeep

Power Factor (P.F.) is the ratio of Working Power to
Apparent Power.

P.F. = KW/KVA

Answer / rajesh

power factor is the cosine of the angle between voltage and
current. if voltage and current are in phase then power
factor is unity. however, in practice this not possible
since loads are not purely reistive.

cos phi = active power/apparent power

Answer / saravanan.p

A graph drawn between voltage(V) and Current(I), a curve
will form due to loss between voltage and current. This is
called power factor.

This is also defind as the ratio between Apparent power to
Actual power.

Power Factor = KW / KVA.

Answer / ankit4mail

power factor if the ratio between true power(watts) to
apparent power(watts).

Answer / r ksharma

It is defined as the ratio resistance to impedance.It is
either leading or lagging.

Answer / ripon

power factor denotes that how much power really need.
suppose if power factor is 0.8 or 80% thats mean in 100
percent providing power u will get 80%.This 80% is real power.

Answer / suvajit

It is the ratio of the resistance(R) of the circuit to the
impedance(Z) of the same circuit.

Power factor=R/Z.

Answer / tharan

THE ANGLE BETWEEN VOLTAGE AND CURRENT....

what is priming pump?why it is used ?

2 Answers  

Why CBCT rating is 50/1A

0 Answers  

Difference between single phase rotary inverter and 3 phase rotary inverter

1 Answers   Jet Airways,

While connecting the flood light plug on to the 415 V distribution panel,there was spark and the cable got burnt. Three ignitors of the flood light also burnt of. The lamps are of 400 W (total 6 lamps) connected through 1.5 mm2 cable. The plug was immediately removed from the circuit. There was a 30 mA RCD connected and a 250 A MCCB; however both did not trip. What could be the possible reasons for the circuit devices not to trip?Can someone assist please. Additional info if needed can be provided.

2 Answers  

Draw the line diagram of diffretial relay connected to transformer?

0 Answers   NTPC,

IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace.

1 Answers   Jindal,

explanation of mesh bus bars

0 Answers   Eskom,

I Have 100Ah battery with 650VA Inverter, i WANT TO TAKE a Solar panel to charge my battery, so please suggest me,what rating of solar panel(with solar charge controller) can buy for a load of 450w for 4 hours

1 Answers   Chevron,

What is difference between AC and DC resistance

9 Answers   Eaton,

what is the different between bus section and bus coupler

1 Answers  

Find the octal equivalent for the binary number 101101110

1 Answers   Ecil,

difference between the earthing,grounding and neutral

1 Answers   DLF, L&T,