ABB REB670 1MRK004820-BF Busbar Protection Replay Module In Stock

Application:

• Provides selective, reliable, and fast differential protection for:
  • Busbars, T-connections, and meshed corners.
• Suitable for:
  • Single and double busbars with or without transfer buses.
  • Double circuit breaker stations or one-and-a-half circuit breaker stations.
• Compatible with medium voltage (MV), high voltage (HV), and extra high voltage (EHV) systems at 50Hz or 60Hz frequency.
• Detects internal phase-to-phase and phase-to-earth faults in solidly earthed or low-impedance earthed power systems.

Protection Functions:

• Differential protection: Detects various fault types.
• Zone selection: Allows customization for specific applications.
• Current protection: Provides secure local backup protection for circuit breakers.
• Voltage protection: Monitors voltage levels.
• Frequency protection: Ensures stability.
• Multipurpose protection: Combines multiple algorithms.
• Secondary system supervision: Ensures proper functioning.

Control and Logic Functions:

• Provides hardware description.
• Offers secure local backup protection for circuit breakers.
• Optionally available four-stage, non-directional overcurrent protection.