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ABB REJ601

Technical Specifications

  • Model: REJ601
  • Product Type: Feeder Protection Relay
  • Brand: ABB
  • Origin: United States
  • Power Supply: 24-265 V AC/DC
  • Input Interface: Supports traditional current transformer (CT) interfaces and Rogowski coil analog interfaces
  • Operating Temperature Range: -20°C to 70°C
  • Mounting Type: Panel mounting
  • Communication Protocols: Supports Modbus RTU and IEC 60870-5-103
  • Key Features: Compact design, configurable binary inputs/outputs, self-monitoring of hardware and software, detachable terminals with short-circuit protection, and easy push-in installation.
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Detailed content

Functional Features

  • Protection Functions: Includes overcurrent protection, ground fault protection, phase sequence monitoring, thermal overload protection, surge current detection, and reclosing functions.
  • Monitoring Capabilities: Real-time clock, event logging, fault recording, and trip counter.
  • User Interface: Local Human-Machine Interface (HMI) for configuration and monitoring.
  • Self-Monitoring: Comprehensive hardware and software self-monitoring to ensure reliable operation.
  • Flexible Configuration: Binary inputs and outputs can be easily configured to suit specific application requirements.

Application Scenarios

  • Utility and Industrial Power Systems: REJ601 is used to protect primary and secondary distribution networks in utility and industrial power systems.
  • Feeder Protection: Ideal for overhead lines and cable feeders in solidly grounded, resistance grounded, or isolated networks.
  • Distribution Transformers: Provides surge current stabilization for distribution transformers.
  • Switchgear Applications: Suitable for integration into switchgear to ensure reliable operation and protection.

Product Advantages

  • Compact and Flexible Design: Reduces the footprint of medium-voltage switchgear while improving performance and standardization.
  • Easy Installation and Commissioning: Quick installation with push-in mounting and rapid commissioning through selective testing functions.
  • Enhanced Safety: Detachable terminals with short-circuit protection improve operational safety.
  • Seamless Integration: Works smoothly with ABB control systems, making it an ideal choice for achieving optimal performance and efficiency in industrial environments.

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