REF601CE446BB1 | ABB Feeder Protection and Control Relay
Description
REF601CE446BB1 (ABB Feeder Protection and Control Relay) is a dedicated numerical relay designed for protection and control of utility and industrial power systems in primary and secondary distribution networks. It integrates protection, monitoring, and control functions in a single unit with high performance and usability.
| Specification | Value |
|---|---|
| Protection Functions | 3-stage overcurrent, 2-stage earth fault, transformer surge detection, thermal overload, negative phase sequence protection |
| Overcurrent/Earth Fault Low-level Features | Selectable definite time (DT) and inverse definite minimum time (IDMT) characteristics; supports IEC 61255-3, ANSI C37.112, and special RI inverse characteristics |
| Configuration Options | 3 pre-configured application settings; adjustable via local human-machine interface (LHMI); 2 setting groups supported |
Key Features:
- Multi-functional protection covering overcurrent, overload, short circuit, earth fault, and current differential scenarios
- High-precision digital control with programmable logic for custom operation requirements
- Built-in communication interface for remote monitoring and system integration
- Compact hot-swappable module design for tool-free replacement without system shutdown
- Transformer surge detector prevents unnecessary tripping during transformer energization
Applications:
- Utility primary and secondary distribution networks
- Industrial power system feeder and cable protection
- Medium-voltage switchgear with Rogowski current sensor compatibility
Related Models:
- REJ601 (Overcurrent protection relay without breaker control)
- REF601 other variants in the Relion 605 series
- ABB AI810 Analog Input Module (S800 I/O series)