Model PQC - Power Quality Controller
The new universal control characteristic curve makes the FRAKO PQC even more flexible in use. It can be relied upon to optimize the power factor not only in classical correction systems but also in state-of-the-art decentralized power generation networks. In addition, the universal control curve ensures extremely efficient operation of the power factor correction system with minimized component wear. Continuous monitoring of system variables and control parameters means that critical situations are detected in good time. By means of selective switching, the PQC protects the installation against overloading, thus guaranteeing safe and reliable operation of the correction system.
The PQC Power Quality Controller adds powerful new functionality to the well-known strengths of the FRAKO Reactive Power Control Relays to meet the challenges posed by state-of-the-art power quality systems. With its built-in microprocessor, the PQC handles tasks over and above classical power factor correction. In particular, new protective mechanisms have been incorporated to safeguard not only the network itself but also the system that corrects its power factor. The PQC thus monitors the relevant parameters that can cause disruptions in the network, and gives alarms if they go beyond the limits set to ensure compliance with technical standards. In addition, the PQC also protects the power factor correction system responsible for the network, shutting it down if it becomes overloaded. This significantly reduces the risk of upsets occurring within that system. Defective or partially defective capacitor stages are identified and withdrawn from the power factor correction process. An extremely flexible alarm management function ensures that alarm messages are sent to where they are needed, as appropriate to the event concerned. The possibility of parameterizing each individual controller enables the PQC to be used anywhere, making it the best possible instrument for controlling power quality in contemporary industrial supply networks. The PQC is characterized by user-friendly features such as simple installation, intuitive operation and the automatic start-up already known from FRAKO Reactive Power Control Relays. Its integrated self-monitoring function improves long-term operational reliability, thus helping to reduce costs and minimize the risk of network disruptions.
- 1- or 3-phase measurement
- 4-quadrant control
- 6 or 12 switching outputs + 1 alarm contact
- 5 parameterizable control curves
- Graphical user interface with plain text menu in choice of languages
- Integrated monitoring of system parameters with alarm management function
- Now also available with inductive and mixed inductive/capacitive control
The PQC is suitable for 4-quadrant power factor correction in:
- Consumer networks
- Power generation networks
- Low and medium voltage networks
- Power factor correction systems with or without detuning