what is power factor?
is it good or bad for a system?
what will happen if power factor increase or decrease?
Answers were Sorted based on User's Feedback
Answer / arvind
The power factor of an AC electric power system is defined as the ratio of the real power flowing to the load to the apparent power,[1][2] and is a dimensionless number between 0 and 1 (frequently expressed as a percentage, e.g. 0.5 pf = 50% pf). Real power is the capacity of the circuit for performing work in a particular time. Apparent power is the product of the current and voltage of the circuit. Due to energy stored in the load and returned to the source, or due to a non-linear load that distorts the wave shape of the current drawn from the source, the apparent power can be greater than the real power
The power factor of an AC electric power system is defined as the ratio of the real power flowing to the load to the apparent power,[1][2] and is a dimensionless number between 0 and 1 (frequently expressed as a percentage, e.g. 0.5 pf = 50% pf). Real power is the capacity of the circuit for performing work in a particular time. Apparent power is the product of the current and voltage of the circuit. Due to energy stored in the load and returned to the source, or due to a non-linear load that distorts the wave shape of the current drawn from the source, the apparent power can be greater than the real power
| Is This Answer Correct ? | 9 Yes | 1 No |
Answer / karthik_elec
power factor : the cos angle between voltage and current,
when pf increase current reduce
when pf degress current will increase
if pf increases good for the system
| Is This Answer Correct ? | 7 Yes | 1 No |
Answer / saran
The power factor is the ratio active energy and apparent
enery is called power factor.
the power factor is incresed custormer used more power
energy leading current so fanaty give TNEB.
the power factor is decress custormer used less power i.e
legging power factor between -0.9 to -0.99, that is
maintance lagging power factor one is unity power factor.
more all use inductive load must use power factor,
power factor leg and lead applied by voltage pai angle.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / md. imdadul haque
The cosine angel between voltage & current known as power
factor.
P.f play important role in electrical system. If the p.f
decreased,the equipment take more current from source, it is
harmful to devices. If the p.f increased to about unity, we
can get more real power. This is used in power plant.But
NLDC CORRECTION P.F Another way p.f is chosen a suitable
value that is helpful to consumers and suppliers.
| Is This Answer Correct ? | 1 Yes | 0 No |
the problem faced on star or delta winding connection??
what is the d/f b/w dol & star delta starter.
What is Grounding?
there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit
What is an isolation transformer?Why do we need isolate circuits?Where do we use them?
how dg's working of 1000kva.
which one is more efficient, torq, power & ecnomy with the same frame size AC motor / DC motor?
what is effect of unbalaced load -- say R 15A, Y 25A, B 10A
what will happen if i connect or change line with phase terminal
how much percentage set in transformer diffrencial relay
Why Motors are generally supplied with 3 core cables??? why not 4C??
Relative synchronous generator
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)