What is power factor?
Answer:
The power factor of an AC electric power system is defined as the ratio of the real power to the apparent power, and is a number between 0 and 1. 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. Low-power-factor loads increase losses in a power distribution system and result in increased energy costs.
The power factor is defined as:
P
--
S
power factor = cosine ( theta),
where theta is the angle difference between the voltage and current.
or it is the ratio of apparent power to true power.
iT IS COSINE OF LEAD OR LAG ANGLE BETWEEN VOLTAGE AND CURRENT IN A,C SYTEM.
power factor = cosine ( theta),
where theta is the angle difference between the voltage and current.
or it is the ratio of apparent power to true power.
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