ABB REB670 1MRK002820-AC Digital busbar protection relay
Specific Parameters
- Electrical ParametersOperating Voltage: 220VProcessing Speed: 550μsProtection Operation Time: ≤20msMeasurement Accuracy: 0.5%Communication Interfaces: Ethernet, RS-485Supported Protocols: IEC 61850, Profibus, DNP3Event Recording Capacity: Stores multiple groups of fault and operation events
- Environmental ParametersOperating Temperature: -25°C to 70°CStorage Temperature: -40°C to 85°CRelative Humidity: 5% to 95% (non-condensing)Protection Class: IP20EMC Immunity: Complies with IEC 61000 series standards
- Mechanical ParametersDimensions: 20cm × 25cm × 30cmWeight: Approximately 2.5kgMounting Method: Suitable for standard control cabinet installation in substationsIndicators: Operation status, fault alarm, and communication status indicators
Product Performance
It features fast differential protection response, with an operation time of ≤20ms that can quickly isolate busbar faults, prevent fault expansion, and minimize power outage losses. The dynamic zone selection function realizes adaptive adjustment of protection zones through disconnector replica, adapting to the flexible switching needs of complex busbar wiring.
With a measurement accuracy of 0.5%, it adopts advanced digital signal processing technology to real-time monitor electrical parameters such as current and voltage, providing accurate data support for protection logic and system monitoring. Multi-protocol communication capability ensures seamless integration with SCADA systems and substation automation platforms, supporting remote configuration, monitoring and fault diagnosis.
The device has high reliability, verified by rigorous environmental tests, and can operate continuously and stably in industrial scenarios such as wide temperature and high humidity. The comprehensive event recording function provides complete data basis for fault tracing and system optimization.
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