ABB|RET620|Feeder Protection Relay
Description
The ABB RET620 is a compact transformer protection and control relay designed for advanced power system management.
Features
Comprehensive transformer protection
Flexible configuration
User-friendly interface
Technical Specifications
Power Supply
Voltage: 24-265 V AC/DC
Power consumption: 20 W max
Measurement Inputs
Current inputs: 5 A or 1 A nominal
Voltage inputs: 100-120 V AC
Accuracy: ± 1% for current/voltage
Protection Functions
Differential protection: 87T, 0.1-2.0 pu sensitivity
Overcurrent protection: 50/51, 0.05-40 pu range
Trip time: < 20 ms
Communication
Interfaces: IEC 61850, Modbus, DNP3
Ports: 2 Ethernet, 1 RS-485
Baud rate: Up to 115200 bps
Environmental
Operating temperature: -25°C to 55°C
Storage temperature: -40°C to 85°C
Humidity: 5% to 95%, non-condensing
Physical
Dimensions: 177 mm x 177 mm x 158 mm
Weight: 4.5 kg
Mounting: Panel or rack, 19-inch
Performance
Sampling rate: 32 samples/cycle
Processing speed: 1 ms for fault detection
Event memory: 1000 events, 1 ms resolution
ABB|RET620|Feeder Protection Relay
ABB|RET620|Feeder Protection Relay
Description
The ABB RET620 is a compact transformer protection and control relay designed for advanced power system management.
Features
Comprehensive transformer protection
Flexible configuration
User-friendly interface
Technical Specifications
Power Supply
Voltage: 24-265 V AC/DC
Power consumption: 20 W max
Measurement Inputs
Current inputs: 5 A or 1 A nominal
Voltage inputs: 100-120 V AC
Accuracy: ± 1% for current/voltage
Protection Functions
Differential protection: 87T, 0.1-2.0 pu sensitivity
Overcurrent protection: 50/51, 0.05-40 pu range
Trip time: < 20 ms
Communication
Interfaces: IEC 61850, Modbus, DNP3
Ports: 2 Ethernet, 1 RS-485
Baud rate: Up to 115200 bps
Environmental
Operating temperature: -25°C to 55°C
Storage temperature: -40°C to 85°C
Humidity: 5% to 95%, non-condensing
Physical
Dimensions: 177 mm x 177 mm x 158 mm
Weight: 4.5 kg
Mounting: Panel or rack, 19-inch
Performance
Sampling rate: 32 samples/cycle
Processing speed: 1 ms for fault detection
Event memory: 1000 events, 1 ms resolution
