Automatic power factor correction systems from AC/DC Dynamics
April 2013
Electrical Power & Protection
With the growing demand in the area of energy management and monitoring, the VMP and VMPC PFC ranges from AC/DC Dynamics feature 3 phase monitoring and both single and 3 phase compensation. This gives users the ability to determine precise compensation. On the technical side, 3 C/Ts are required to be installed with this monitoring system for accurate compensation and measurement. The VMPC range is supplied standard with a GEM-10, Ethernet, Modbus and GPRS gateway to address any communication interface requirements.
The Entes RGS-12 controller measures active energy (kWh), reactive energy (kVArh) and has energy ratio alarms. It measures and displays THDI, THDV (total harmonic distortion) for current and voltage with adjustable THDV alarm levels. Despite all the extra functions the controller is easy to set up, requiring no extra programming in auto setup mode.
The company has also launched a Web page where all parameters, measurements and alarms are recorded and monitored. The new software can be custom made to suite personal requirements. Monthly utility consumption, bills and various other power quality reports can be generated with ease, assisting management of the incoming supply quality, consumption and PFC unit.
The cabinet design provides top and bottom cable entry for easy installation and modularity allows for quick and easy configuration. If extra compensation is required, the system allows for extra racks or higher kVAr racks to be installed. The unique modular cabinets can be bolted up against each other in the event that the load demand increases. All that’s required is interconnection and adjustments to the controller’s set points. The design further incorporates MCC rack design, which utilises superior plug-in connectors.
The adjustable temperature controlled cooling fan’s location and ventilation design, extracts the air across the capacitors and contactors thus assisting with the heat transfer out of the cabinet.
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