Why to Save Energy?
“Energy can neither be created nor be destroyed; it can be only transform from one form to another.”

Some of the energy we can use is called renewable energy. These include solar, wind, geothermal and hydro. These types of energy are constantly being renewed or restored.

But many of the other forms of energy we use in our homes and cars are not being replenished. Fossil fuels took millions of years to create. They cannot be made over night and there are finite or limited amounts of these non-renewable energy sources. That means they cannot be renewed or replenished. Once they are gone they cannot be used again. So, we must all do our part in saving as much energy as we can.
Power Factor Correction:
Capacitive Power Factor correction is applied to circuits, which include induction motors as a means of reducing the inductive component of the current, and thereby reduces the losses in the supply. There should be no effect on the operation of the motor itself.

An induction motor draws current from the supply, which is made up of resistive components and inductive components. The resistive components are:
1.
2.
3.
4.
Load current.
Loss current. and the inductive components are:
Leakage reactance.
Magnetizing current.
For example a motor with a current draw of 100 Amps and a power factor of 0.75. The resistive component of the current is 75 Amps and this is what the kWh meter measures. The higher current will result in an increase in the distribution losses of (100 x 100) /(75 x 75) = 1.777 or a 78% increase in the supply losses.

In the interest of reducing the losses in the distribution system, power factor correction is added to neutralize a portion of the magnetizing current of the motor. Typically, the corrected power factor will be 0.92 - 0.95. Some power retailers offer incentives for operating with a power factor of better than 0.9, while others penalize consumers with a poor power factor. There are many ways that this is metered, but the net result is that in order to reduce wasted energy in the distribution system, the consumer will be encouraged to apply power factor correction.

1.
2.
3.

Energy Economizer
Energy Conservation
Pledge of Saving Electricity