ABB REG670 1MRK002826-AA is a numerical generator protection IED, offering full protection, control, monitoring and communication for power plant generators.

Product Description

ABB REG670 1MRK002826-AA (full order code: 1MRK002826-AA) is a high-performance numerical generator protection and control IED (Intelligent Electronic Device) from ABB’s Relion® 670 series (now Hitachi Energy). It is purpose-built for comprehensive protection, automation, and real-time monitoring of synchronous generators and generator-transformer units in power plants, industrial cogeneration, and renewable energy systems.

Key Features & Functions

• Complete Generator Protection Suite
• Differential Protection (87G): High-speed stator winding fault detection
• 100% Stator Ground Fault (64G): Full winding coverage using third-harmonic voltage
• Loss-of-Field (40): Protects against excitation failure
• Reverse Power (32R/S): Prevents generator motoring conditions
• Negative Sequence Overcurrent (46): Safeguards against unbalanced loads
• Thermal Overload (49): Stator and rotor temperature monitoring
• Over/Under Voltage (59/27) & Frequency (81): Grid stability protection
• Rotor Earth Fault: Detects insulation breakdown in excitation circuits
• Advanced Control & Monitoring
• Synchronism Check (25): For safe grid connection
• High-precision Measurement: Voltage, current, power, energy with 0.5% accuracy
• Event Recorder: Stores 1000+ time-stamped events
• Disturbance Recorder: Captures fault data for analysis
• Built-in Self-test: Continuous hardware and software diagnostics
• Communication & Integration
• Dual Ethernet: IEC 61850 (with GOOSE), DNP3.0, Modbus TCP
• Dual Serial: IEC 60870-5-103, SPA communication protocols
• Seamless connectivity: to SCADA, DCS, and PLC systems
• Hardware & Design
• Form Factor: 19" rack mount (4U) or panel mount
• Power Supply: Universal 48–250 VDC / 100–240 VAC
• I/O: 18 configurable binary inputs, 11 relay outputs

• Environmental: -25°C to +55°C operation; IP54 front, IP20 rear

  
  

Typical Applications

• Thermal, hydro, and gas turbine generators

• Industrial and cogeneration power plants

• Wind and solar farm grid-tie generators

• Generator-transformer unit (GTU) protection

  
  

Supply Information

• Condition: New Original / New Surplus
• Warranty: 12 months
• Availability: In stock, fast worldwide shipping

• Origin: Sweden

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About Us

Guizhou Yuanmiao Automation Equipment Co., Ltd. is a professional supplier of industrial automation spare parts and international trade services.

We supply genuine DCS systems, PLC modules, servo drives, robot parts and other control components, covering top brands including ABB, Siemens, Woodward, Bently, GE and more.

We offer competitive prices, fast global delivery, strict quality control and professional after-sales support, providing cost-effective solutions for customers worldwide.

Our products are widely used in power, oil & gas, metallurgy, marine, manufacturing and other industries. We are committed to being your trusted one-stop partner for industrial automation spare parts.