RVT by ABB is easy to commission and use, provides comprehensive system measurements including harmonics and can be fitted with a Modbus adaptor for integration into a building management system (BMS):
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| ABB’s new RVT power factor controller is the 'ultimate'. |
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ABB has designed its new RVT power factor controller as the 'ultimate' controller for the flexible monitoring and switching of capacitor banks in power factor control (PFC) applications. The key features of the RVT include easy commissioning and automatic set-up, a user-friendly menu-based operator interface with a full graphics display, and a highly efficient switching strategy that combines integral, direct and circular switching.
Features:
The RVT provides comprehensive measurement, monitoring and event-logging of network and capacitor bank information including: active and apparent power; reactive power; voltage and current; temperature; total harmonic distortion on voltage (THD V) and total harmonic distortion on current (THD I); frequency. Programmable parameter setting enables the operator to set the switching strategy, with the flexibility to determine different control targets for day and night operation, and to enter alarm thresholds to protect the capacitor bank against such events as over and under-voltage, over-temperature and excessive harmonic distortion.
The standard RVT has the facility to trigger external alarms, while the RVT-Modbus version is fitted with an RS485 Modbus adapter which makes all its operational parameters accessible and downloadable for full integration within a BMS.
The RVT is suitable for use in a wide range of ambient temperatures from -20°C to +70°C and its flexiblity is increased even further by multi-language support which allows the operator to select its working language from a choice of English, French, German and Spanish.
The RVT can be connected to voltages in the range 100 to 400V AC at 50 or 60 Hz and it will work with both 5A and 1A CTs (current transformers).
Power factor:
Power factor - the ratio between apparent and actual power - is an indicator of the efficiency of the electricity network. If power factor is low, the electricity supplier's own network, and consequently the power supplied to other customers, can be affected. Electricity suppliers charge less to businesses that improve the power factor of their networks.
Equipment such as motors, computers and fluorescent lighting tend to worsen power factor. It can be corrected by installing capacitor banks at appropriate points in the network. ABB Power Technologies is a leading manufacturer, supplier and installer of PFC solutions.
Contact: Karen Strong
ABB Power Technologies
Tel: 01785 825050
Email: karen.strong@gb.abb.com
Web: www.abb.com
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