ABB REX010 Earth Fault Protection Unit
Description
ABB REX010 Earth Fault Protection Unit is a compact industrial control spare part and protection device designed for generator-side earth fault protection, optimized to work with REG216/REG316*4 relays.
| Specification | Value |
|---|---|
| Brand | ABB |
| Power Supply | 36 to 312 volts DC (from station battery) |
| Operating Principle | Offset method with low frequency injected signal |
Key Features:
- Provides continuous protection during machine standstill, startup, and full operation
- Offers full protection of the entire stator winding including neutral point when paired with REG216/REG316*4
- Continuously monitors injected voltage, primary earthing system, and the amplitude and frequency of signals for two separate earthing points in the protection zone
- Insensitive to external interference, with self-monitoring capabilities for injected signals
Applications:
- Stator and rotor earth fault protection for all standard generator earthing and excitation systems
- Retrofit upgrades for existing power generation facilities
Related Models:
- REG216
- REG316*4
- REX011 (injection transformer)
- REX610
- REX615