Technical Specifications

Parameter Name	Value
Product Model	1MRK002247-AG
Manufacturer	ABB
Product Type	Transformer Input Module (TRM)
Series	Relion® (RED670 Busbar Protection System)
Current Input Channels	6 channels (6I), rated 1A
Voltage Input Channels	6 channels (6U), rated 110/220V
Total Input Channels	12 channels (I/U) with flexible configuration
Operating Frequency	50/60 Hz
Power Supply	24–250V DC or 100–240V AC (wide-range)
Communication Protocols	IEC 61850, DNP3.0, Modbus RTU, SPA
Measurement Accuracy	Current/Voltage: ±0.5%, Power: ±1%
Operating Temperature	-20°C to +70°C
Storage Temperature	-40°C to +85°C
Protection Rating	IP20 (module), IP40 (front panel)
Connector Type	24-pin connector (XA) for external wiring
Weight	Approx. 0.76kg
Certifications	IEC 60255, IEC 61000-4, CE, UL, KEMA

 

Main Features and Advantages

High-accuracy signal acquisition and conditioning: At the core of the ABB 1MRK002247-AG lies a high-resolution signal acquisition architecture that ensures the fidelity of measured current and voltage vectors . The module incorporates sophisticated anti-aliasing filters and galvanic isolation circuitry, ensuring the digital representation of the grid remains clean and free from the electrical noise typical of high-voltage environments . This precision is essential for executing advanced functions like transformer differential protection and distance protection, where accuracy in protection is directly dependent on the quality of input data .

Comprehensive protection functionality: The ABB 1MRK002247-AG supports an extensive suite of transformer protection algorithms, including ratio-bias differential protection with harmonic blocking for inrush current detection, instantaneous and time-delayed overcurrent, zero-sequence overcurrent for ground fault protection, and non-electrical quantity tripping for gas and oil temperature monitoring . This comprehensive functionality enables the ABB 1MRK002247-AG to act as the “last line of defense” for critical transformers, rapidly detecting and isolating internal faults to prevent catastrophic equipment damage .

Robust design for demanding environments: Engineered for a service life exceeding 20 years, the ABB 1MRK002247-AG is built with industrial-grade components resistant to aging and thermal stress . Each module undergoes rigorous quality checks including automated optical inspection and functional testing to ensure it meets ABB’s uncompromising standards for reliability . With its wide operating temperature range of -20°C to +70°C and comprehensive EMC compliance to IEC 61000-4 standards, the ABB 1MRK002247-AG delivers dependable performance in demanding substation environments .

 

Application Fields

The ABB 1MRK002247-AG is predominantly deployed in medium and high-voltage power systems, serving as a critical component within the RED670 digital busbar protection system . Its primary application is in busbar protection schemes, where it provides the high-precision current and voltage measurements needed for differential protection of single busbars, double busbars, transfer busbar systems, and complex closed networks . The ABB 1MRK002247-AG is also essential for protection in double circuit breaker stations and 1.5 circuit breaker station configurations, ensuring selective and sensitive fault detection across complex power network topologies .

In the power generation and transmission sector, the ABB 1MRK002247-AG is deployed for protecting step-up transformers in power plants, main transformers, auxiliary transformers, and industrial distribution transformers . The module’s ability to execute high-sensitivity differential protection enables rapid clearing of internal phase-to-phase or phase-to-ground faults . In renewable energy applications, the ABB 1MRK002247-AG supports protection for photovoltaic and wind farm step-up transformers, with specialized algorithms adapted for weak-feed system conditions . The ABB 1MRK002247-AG is also widely utilized in petrochemical and metallurgical industrial substations, where it serves as the critical protection component for vital distribution transformers .

Beyond the power industry, the ABB 1MRK002247-AG finds applications in industrial automation contexts requiring high-precision electrical measurement and stable power protection . Its support for multiple communication protocols including IEC 61850, DNP3.0, and Modbus RTU ensures seamless integration with various SCADA systems and substation automation platforms . The module can be integrated with ABB MicroSCADA or third-party supervisory systems, supporting remote setting modifications, sequence-of-events (SOE) recording, and fault waveform capture in COMTRADE format .