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Dynamic Power Factor Correction

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Using conventional power factor correction systems with contactors to switch the capacitors may be inappropriate for power supply lines with quickly changing loads. Capacitors may be connected to the supply line "softly" within a few milliseconds for any number of times and for any duration if dynamic power factor correction systems are used. Characteristics of dynamic power factor correction modules include: transient-free switching wear-free switching, unlimited switching cycles integrated busbar system 630A with HRC load breaker for each step and quick-action HRC fuses to protect the thyristors intrinsically safe thyristor power switch for max. 50 KVAR with internal monitoring of the following parameters: line voltage phasing capacitor nominal current temperature readout in case of a fault as well as disconnection of the module and automatic reconnection when the cause of the fault ceases to exist for designs with reactors: highly linear filter circuit reactors, insulation class T50B PCB-free MKP-type capacitors The modules are switched using a special dynamic power factor controller, DynaReg 12, which records the power factor in real time within two line cycles and activates the power factor correction steps. The DynaReg 12 controller has 12 outputs. The STM12 unit represents a fault message display for 12 power factor correction units. DynaMix dynamic power factor correction systems Developed by ELKON, DynaMix power factor correction systems combine the benefits of dynamic power factor correction with the benefits of a lower-cost variant, which uses a conventional contactor circuit. Dynamically and conventionally switched units are used jointly in one power factor correction system. Through a special control system the power factor correction of quick load changes is achieved using the dynamic part of the system, whereas the power factor correction of the base load is achieved using the conventional part.

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