Series overview
ABB Relion® 605 series is a protective relay product family specially designed for distribution network, which represents the technical benchmark in the field of low and medium voltage power system protection. Based on ABB’s decades of experience in the field of power protection, this series integrates the latest digital signal processing technology and network communication capabilities, and provides a complete solution for substation automation.
Series core value
Modular design: allows users to select functional combinations according to specific application requirements.
Compact structure: Optimized space utilization, especially suitable for renovation projects.
Intuitive operation: simplified man-machine interface lowers the threshold of use
Network integration: supporting modern substation communication standards
Product line composition
Series 605 contains several special protection relay models, each with its own characteristics:
1. REF601
Feeder protection and control relay
Integrate protection, monitoring and control functions into one.
Including circuit breaker control function.
Support automatic reclosing (up to 4 times)
2. REJ601
Overcurrent protection relay
Focus on overcurrent and ground fault protection
Circuit breaker control function is not included.
Three configurations are available (B/C/D)
3. REM601
Motor protection relay
Optimized for motor protection
Including start-up monitoring and thermal model.
Support a variety of motor starting modes.
4. RET615
Transformer differential protection relay
Adopt advanced differential protection algorithm.
Including inrush current suppression function.
Support multi-winding transformer protection
Technical architecture
1. Hardware platform
Processor system: 32-bit DSP+ARM dual-core architecture.
Sampling system: 16-bit ADC, sampling at 64 points per cycle.
Power supply design: wide range input (24-250V AC/DC)
Mechanical structure: 1/2 frame width, front wiring design.