Power Factor Correction
Wind turbines have become significant contributors to power generation throughout the world.
As a result, utility regulations for wind turbines have become more constrained, and now require stable voltage, reactive energy supply to the network and voltage control to support network failures.
Wind Cluster and its partners provide a wide range of dynamic reactive power compensation, power factor correction systems, voltage control and equipment designed to support grid fault ride through.
We offer single components like capacitors, capacitor duty contactors, power factor controllers measuring e.g. cosᵩ of a supply system and automatically controlling the connection and disconnection of compensation capacitors according to desired cosᵩ.
Alternatively we can supply complete custom made power factor correction systems as may be preferred.
Basic explanations about power factor correction
All inductive devices, such as motors, transformers etc. require magnetizing current to create the magnetic field necessary for the device to operate. Such devices use actual power in kW and reactive power in kvar. Actual and reactive power shall be compensated and in balance.
It is the nature of inductive loads, that current is falling behind the voltage. For capacitors it is opposite and current overtake the voltage trough phase.
If Inductive resistance and capacitive resistance of capacitors is equal then both current values are compensated.
If both values are equal this mean that power factor cos φ which is result between actual power P and apparent power S is 1.
cos φ = P / S
It is a question of money, but also with capacitors and their equipment – POWER FACTOR CORRECTION SYSTEMS – we discharge distribution system (cables, switchgear LV, MV, HV…).
Capacitots offer us reactive energy “for free” and prolong life time of all system parts.
Capacitor duty contactors, switches and circuit breakers
LV capacitor duty contactors, nominal power KC 12-60kvar up to 690V 50/60Hz – EN 60947-4-1
For MV and HV capacitor banks – back to back systems – vacuum contactors, disconectors, circuit breakers -IEC 60470 Standard (05-2000)