This is power factor correction unit to reduce penalty for industrial units. The power factor is defined as the ratio of the real power flowing to the load to the apparent power in the circuit for an AC electrical power system. Generally, the apparent power will be greater than the real power as because either the energy stores in the load and returned to the source or load are non-linear that distorts the wave shape of the current drawn from the source.
Load having low power factor draws more current than the load having high power factor which increases the more energy lost in the distribution system. Linear loads with low power factor (such as induction motors) can be corrected with a passive network of capacitors or inductors. While non-linear loads, such as rectifiers, distort the current drawn from the system. In such cases, active or passive power factor correction may be used to raise the power factor. The power factor correction devices may be at a central substation, spread out over a distribution system, or built into power-consuming equipment.
- It increases the efficiency of system and devices
- Reduces the voltage drop
- Reduction in size of a conductor and cable which reduces the cost
- It helps in eliminating the penalty of low power factor from the electric supply.
- It provides saving in the electric bill.