What is power factof?
Answers were Sorted based on User's Feedback
Answer / hardworker
Powerfactor is defined as the cosine of the angle between
voltage & current.pf=kW/kVA.It is the ratio of power
utilized to the power delivered.pf depends on the type of
load.
If the load is inductive,pf is lagging.
If the load is capacitive,pf is leading.
If the load is resistive,pf is unity.
pf can be found out from the power triangle.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / avinash gupta
cosine of angle between voltage and current...so cos fi..
it is a ratio of resistance to impedence..cos fi=r/z
its a ratio between active power/apprent power...=vicosfi/vi
=cosfi
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / manasa
Power factor is the ratio between active (real) power to
the apparent power i.e
PF = P/(√P2+Q2)
The power factor can also be calculated from the following
equation provided that the phase difference between the
current and voltage have been measured:
PF = Cosφ
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / ashok
power Factor is the Cosine of the angle between real
power & apparant power
power factor = KW/KVA
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / dave.vimal
PF Is
1.Cosine angle between voltage and current.
2.IT IS THE RATIO OF RASISTANCE AND TOTAL INPEDNCE OF THAT
CIRCUIT AND DENOTED BY COS PHI.
P.F. = R/Z
3.RATIO BETWEEN ACTIVE POWER AND APPARANT POWER IS CALLED
POWER FACTOR.
POWER FACTOR= ACTIVE POWER/APPARANT POWER
= VICOS/VI
If the load is inductive,pf is lagging.
If the load is capacitive,pf is leading.
If the load is resistive,pf is unity.
pf can be found out from the power triangle
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / ravikumar.g
The cosine of the angle between line voltage and line
current is known as Power Factor.
The power factor calculating the Formula =
PF = RealPower/Apparant Power
PF = KW/KVA
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / naresh
power factor is the cosine of the angle between phase
voltage and phase current
| Is This Answer Correct ? | 0 Yes | 1 No |
why should we connect the no load components in a equivalent circuit of transformer in parallel?why cant it be in series.
what are the components in electrical control panel (for example: 415V, 3-ph, panel to operate utility and 3-ph DG set).
how generator load test is conducted?what are the steps?
What are the protections for safe running of electric generator?
please give some hindalco placement papers for written exam
i work as a technician at a private company.. i used to take amp reading for certain appliances such as air con.. the problem is when i clamp the neutral, wire there is a current reading.. from my understanding for single phase system neutral should not have current unless if the circuit is not complete.. yet the air con still work
Why we are mostly using a single 3-phase transformer instead of three 1-phase transformers?
what is the value of combined earthing in general electrical circiut?
0 Answers Cathtect Engineering,
What is the output of a transformer..??
working of bucholz relay of a transformer
Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?
Why different types of connection in transformers are used? (star/star,star/delta,delta/star,delta/delta)Why we are only taking in consideration of star/delta type transformers? if only star/delta is good in practice where doses other type of transformers are used? Note: i want to know place of using different types of transformers other than Star/delta type with brief description.
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)