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?
THE BENEFITS ARE THE FOLLOWING:
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.
REDUCED CIRCUIT LOSSES
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.
SPECIAL AMBIENT CONDITIONS
Standard Power Factor Correction Equipment are not suitable to
be used in places where the following special conditions occur:
formation of mildew
and saline atmosphere
of explosive or highly flammable materials
In such cases, please, contact the Technical Department of