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Type | Feeder Protection Relay |
---|---|
Rated Frequency | 50/60 Hz |
Operating Temperature Range | -25°C to +55°C |
Frequency Range | 45-65 Hz |
Communication Protocols | IEC 61850, Modbus, DNP3 |
Mounting | Flush mounting |
Protection Functions | Overcurrent, Earth fault |
Input Voltage | 24-250 V DC |
Enclosure | IP54 |
Weight | 2.5 kg |
Details non-directional and directional earth-fault protection schemes, including identification, function blocks, functionality, operation principles, application, signals, settings, monitored data, technical data, and revision history.
Covers line differential protection, stabilized and instantaneous differential protection for transformers, and numerically stabilized low-impedance restricted earth-fault protection.
Provides backup trip functionality for the main circuit breaker when it fails to clear a fault.
Monitors circuit breaker parameters like operation count, travel time, and spring charge status to indicate maintenance needs.
Covers basic measurements including three-phase current, voltage, residual current/voltage, sequence components, frequency, and power/energy.
Details functions for monitoring and metering phase currents, voltages, residual currents/voltages, sequence components, frequency, and power/energy.
Provides control and status indication for switching components, executing commands, and evaluating supervision conditions.
Provides programmable auto-reclose shots for transient faults, enabling automatic restoration of power.