Power Factor Correction Automatic Equipments
Industrial plants where the load varies greatly throughout normal operation will require automatic P.F. equipment in order to connect the necessary capacitive power.
WHY SHOULD POWER FACTOR BE IMPROVED?
REDUCED UTILITY CHARGES
Thermal capacity considerations force the Utilities to overbuild its distribution system in order to serve a facility with low power factor. The Utilities force the customer to install capacitors for reducing the reactive energy.
INCREASED SYSTEM CAPACITY
The thermal capacity of generators, transformers and cables limit the kVA that can be supplied by the system. Reducing the KVAR demand from existing load by installing capacitors, allows additional load to be added to the system.
High demand of reactive power increases the voltage drops across transformers, cables and other system components. The result is a decreased utilization voltage.
The voltage drops can be limited by increasing the power factor.
Since current is reduced in direct proportion to the increase in power factor, the resistive losses, in the circuit, are inversely proportional to the power factor. The increase of power factor allows a losses reduction with substantial benefits for the system.