ABB|REA101|Arc Fault Protection Main Module
ABB REA 101 Arc Fault Protection Main Module
Description
ABB REA 101 is the core module of the REA arc fault protection system, functioning as a standalone or integrated device for fast and reliable arc flash detection and mitigation in low and medium voltage switchgears.
Features
- Optical arc flash detection with fiber-optic sensors
- Supports system expansion with REA 103/105/107 extension modules
- Dual-criteria operation: light detection + overcurrent verification
- High-speed tripping with IGBT outputs
- Self-supervision of sensors, cabling, and power integrity
Technical Specifications
- Detection Principle: Optical arc flash detection using fiber-optic light sensors
- Sensor Support: One loop, radial fiber sensor, or one lens-type point sensor
- Current Inputs: Three low-burden inputs for protection core CTs
- Overcurrent Criteria: Adjustable thresholds for 3-phase or 2-phase + neutral overcurrent
- Tripping Outputs: Two high-speed IGBT outputs, tripping time < 1 ms
- Communication Links: Two fiber-optic links for signal transfer (Light, Overcurrent, Trip) between modules
- Signal Transmission Distance: Up to 2 km
ABB|REA101|Arc Fault Protection Main Module
ABB|REA101|Arc Fault Protection Main Module
ABB REA 101 Arc Fault Protection Main Module
Description
ABB REA 101 is the core module of the REA arc fault protection system, functioning as a standalone or integrated device for fast and reliable arc flash detection and mitigation in low and medium voltage switchgears.
Features
- Optical arc flash detection with fiber-optic sensors
- Supports system expansion with REA 103/105/107 extension modules
- Dual-criteria operation: light detection + overcurrent verification
- High-speed tripping with IGBT outputs
- Self-supervision of sensors, cabling, and power integrity
Technical Specifications
- Detection Principle: Optical arc flash detection using fiber-optic light sensors
- Sensor Support: One loop, radial fiber sensor, or one lens-type point sensor
- Current Inputs: Three low-burden inputs for protection core CTs
- Overcurrent Criteria: Adjustable thresholds for 3-phase or 2-phase + neutral overcurrent
- Tripping Outputs: Two high-speed IGBT outputs, tripping time < 1 ms
- Communication Links: Two fiber-optic links for signal transfer (Light, Overcurrent, Trip) between modules
- Signal Transmission Distance: Up to 2 km
