ABB REG670 1MRK002826-AC Protection Relays

Configured for generator and generator-transformer block protection in power generation assets, the ABB REG670 1MRK002826-AC (REG670 Generator Protection and Control IED) provides direct physical/electrical execution.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks

• Backplane Bus Communication Velocity Licences: Manages high-speed internal bus transaction velocities and communication processing modules across internal processor slots.
• Profinet / EtherNet/IP Deterministic Networks: Executes deterministic data packet transfers across scalable extension modules and communication interfaces.
• I/O Density Scaling: Supports multiple extension modules for expanded I/O and communication as system requirements evolve.
• Firmware Flash Compatibility: Permits secure firmware upgrades and configuration memory management without compromising base protection logic parameters.

Frequently Asked Questions

Q: Does the REG670 1MRK002826-AC unit support hot-swapping of internal modules during active operation?

A: Hot-swapping is restricted for primary generator protection and control IED units to prevent unintended tripping or interruption of asset security loops.

Q: What protection suites are integrated into this hardware variant?

A: The unit provides a comprehensive protection suite including overcurrent, overvoltage, undervoltage, and phase loss detection.

Field Installation Guidelines

• Mount the 6U rack-mountable enclosure securely into standard 19-inch electrical protection panels using appropriate structural fasteners.
• Connect the protective ground terminal directly to the substation grounding mesh using low-impedance copper conductors to ensure electromagnetic compatibility.
• Route communication cabling and instrument transformer wiring through dedicated metallic conduits, maintaining spatial separation from high-voltage primary circuits.