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POWER FACTOR CONTROLLERS
The quality of power supply is an important criterion for safe operation of modern technical equipment. In this context,
the functionality of installations for power factor correction and their control and safety features gain a special bearing.
Power factor correction banks have the ability to improve power quality, but they can also cause substantial problems.
Modern power factor controllers are self- optimizing and determine the correct power of the capacitor steps within a few
trial switchings. If the cosφ deviates from the programmed limits, the necessary capacitor power for compensation is
calculated and a suitable output or a combination of outputs are switched, considering the situation of supply system and
power factor correction equipment.
A state-of-the-art power factor controller must also be in a position to monitor all relevant data of equipment and supply
system, to alarm in case of overload and, if required, to switch off the whole equipment or capacitor steps temporarily or
permanently.
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