• Novatek India Enterprises Private Limited

Voltage Protection Relay

Novatek India Enterprises offers three-phase Voltage Protection Relay, RNPP-311M. These are used for protection of three-phase loads against un-allowable mains voltage variations, phase loss, phase imbalance, phase coincidence and incorrect phase sequence. They are highly effective for the protection of any three phase electrical equipment and circuits, including equipment with long term transient dynamics and electric motor load as well as installations where continuous monitoring of quality, availability and three phase lines presence of the mains voltage is required, for example in automatic load transfer panels (ATS-panels). The relay is designed for protection of all faults that may happen for the majority of customers. It is budgetary version of RNPP-301 and has one combined adjustment for voltage level thresholds, and possibility to modify the tripping time delay and auto reclosing time delay. Front panel DIP-switches allow to select the type of the monitored circuit (400 or 415V), and to arrange and combine different operation modes. Such simplification allows decreasing the cost of the product significantly and keeps all most frequently required protection modes. The product finds broad application in protection of refrigerating units and compressor, ventilation equipments, etc. The relay is necessary element of any automatic load transfer panels as well as power supply control panels. Optionally there is a possibility of 24 V DC power supply for continuous monitoring in case of power loss (optional function for client special order).