HOW DID THE POWER FACTOR HELPS REAL POWER (P)

(1) Real Power: (P)

Alternative words used for Real Power (Actual Power, True Power, Watt-full Power, Useful Power, Real Power, and Active Power)

In a DC Circuit, power supply to the DC load is simply the product of Voltage across the load and Current flowing through it i.e., P = V I. because in DC Circuits, there is no concept of phase angle between current and voltage. In other words, there is no Power factor in DC Circuits.

But the situation is Sinusoidal or AC Circuits is more complex because of phase difference between Current and Voltage. Therefore average value of power (Real Power) is P = VI Cosθ is in fact supplied to the load.

In AC circuits, When circuit is pure resistive, then the same formula used for power as used in DC as P = V I.

(2) Reactive Power: (Q)

Also known as (Use-less Power, Watt less Power)

The powers that continuously bounce back and forth between source and load is known as reactive Power (Q)

Power merely absorbed and returned in load due to its reactive properties is referred to as reactive power

The unit of Active or Real power is Watt where 1W = 1V x 1 A.

Reactive power represent that the energy is first stored and then released in the form of magnetic field or electrostatic field in case of inductor and capacitor respectively.

3) Apparent Power: (S)

The product of voltage and current if and only if the phase angle differences between current and voltage are ignored.

Total power in an AC circuit, both dissipated and absorbed/returned is referred to as apparent power

The combination of reactive power and true

power is called apparent power

In an AC circuit, the product of the r.m.s voltage and the r.m.s current is called apparent power.

It is the product of Voltage and Current without phase angle

The unit of Apparent power (S) VA i.e. 1VA = 1V x 1A.

CONCLUSION

As we know that there must be a medium between mechanical power and electrical power for conversion of power from one form to another. In Electrical this medium is magnetic flux which links between mechanical and electrical. Reactive power is used to build up this magnetic flux and hence supports for conversion of energy from one form to another. Just think of Generator or Motor, it is not possible to get Electrical Power from Generator and Mechanical power from motor without magnetic flux.