User talk:Chaitu aluri

POWER FACTOR
It is a dimensionless number that gives the indication of useful power. Its value varies from -1 to +1. The positive power factor indicates the energy flow from source to load and

The negative power factor indicates the reverse flow from load to source

In AC power supply, there are three main components:

1. Active (or) Real (or) Actual (or) Wattful power denoted by 'P' is given by P = VICOSθ

Its units are Watts or KW or MW

2. Rective (or) Wattless power denoted by 'Q' is given by Q = VISINθ

Its units are VAR or KVAR or MVAR

3. Apparent (or) Total power denoted by 'S' is given by P = VI

Its units are VA or KVA or MVA

Considering the vector diagram for power consumed by load;

S 2 = P 2 + Q 2