Voltage relay VR-100 is a multifunctional numerical relay used for busbar voltage monitoring in low and medium voltage plants. Relay VR-100 detects voltage deviation from set-up values and according to selected delay performs signalling and/or circuit breaker trip. Voltage relay VR-100 monitors unallowed voltage disturbances and its main application is generator and transformer protection. Relay can perform two stages of undervoltage and/or two stages of overvoltage protection. Relay measures phase voltages, line voltages as well as residual voltage.
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- undervoltage and/or overvoltage protection
- numerical measuring signal processing
- true RMS phase and line voltage measurement
- true RMS residual voltage measurement
- high accuracy of tripping characteristics
- event recording for ten events
- optical or RS485 communication with host system
- LCD with backlight for displaying measured data, events and parameters
- self test, local and remote indication of device’s availability
- trip signalling with bi-colour LED elements
- four programmable relay outputs (option)
- small dimensions according to DIN 43700 for panel instruments
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