Abb 1MRK002247-AGr02

Product Parameters

Product Features

• Synchronism Check Function: Built-in synchronism check function to ensure phase synchronization of power system operation.
• Impedance Protection: Supports impedance protection functions to effectively enhance the overall safety and stability of the power system.
• Fuse Failure Protection: Equipped with fuse failure monitoring and protection functions to detect and respond to fuse faults in a timely manner.
• High Reliability: Belongs to the authoritative ABB Relion® series, which is widely recognized for high operational reliability and advanced comprehensive protection performance.
• Modular Design: Adopts a compact modular structure, facilitating on-site installation, daily maintenance and subsequent system expansion.
• Electrical Isolation: Provides reliable electrical isolation for secondary current and voltage measurement of transformers to ensure measurement accuracy and equipment safety.
• Multi-protocol Support: Compatible with multiple mainstream communication protocols including IEC 61850, DNP3.0 and Modbus RTU, ensuring good compatibility with various power system devices.

Structure and Composition

Hardware Structure

Input Channel Configuration

• 6 current input channels (6I) with a rated current of 1A per channel
• 6 voltage input channels (6U) with a rated voltage of 110/220V
• A total of 12 input channels support flexible configuration of current and voltage combinations to meet diverse application requirements

Connector Design

• Adopts 24-pin connector (XA) for external wiring connection
• Input pin range: A101(I) – A112(I)
• Supports connection of both ring terminals and crimp terminals for flexible wiring options

Internal Circuit

• Integrates current input module (IIM) and voltage input interface
• Built-in signal conditioning and professional protection circuits
• Supports adjustable polarity setting to adapt to different wiring scenarios

Installation Dimension Reference

Application Fields

Busbar Protection System

Power System Protection

• Protection for single busbar and double busbar configurations
• Protection configuration for transfer busbar systems
• Protection for double circuit breaker stations or 1.5 circuit breaker stations
• Ground fault protection and out-of-step protection for power systems

Industry Applications

• Power Industry: Suitable for power infrastructure such as power plants, substations and power transmission networks.
• Petrochemical Industry: Provides safe and reliable protection for industrial power systems in petrochemical production scenarios.
• Industrial Automation: Applicable to industrial control systems that require high-precision electrical measurement and stable power protection.

Installation and Maintenance

Installation Key Points

Electrical Wiring

• Perform wiring operations in strict accordance with the pin definition of the XA connector.
• Connect current input terminals to the secondary side of CT (Current Transformer).
• Connect voltage input terminals to the secondary side of PT (Potential Transformer).
• Ensure correct wiring polarity; internal polarity can be adjusted via system settings.

Mechanical Installation

• Install the module in the 3/4 size or 1/2 size slot of a 19-inch standard rack.
• Ensure firm installation to avoid loose displacement, and keep the equipment dust-proof and moisture-proof.
• Reserve sufficient heat dissipation space around the module to ensure normal operating temperature.

Communication Connection

• Connect the Ethernet or serial communication port of the module.
• Configure communication parameters such as IEC 61850 protocol according to system requirements.
• Verify stable and normal communication connection with the main control system.

Maintenance Precautions

Regular Inspection

• Check wiring terminals regularly for looseness, oxidation or poor contact.
• Observe and confirm that the device indicator lights work normally.
• Inspect the stability of system communication connections regularly.

Environmental Requirements

• Maintain the operating ambient temperature within the range of -20°C to +70°C.
• Avoid operating in humid environments or environments with corrosive gases.
• Keep the equipment surface clean and perform regular dust removal maintenance.

Fault Handling

• Replace fuses timely once fuse failure faults occur.
• Check the normality of voltage and current input signals when abnormal conditions appear.
• Follow the official system manual for professional fault diagnosis and troubleshooting.

Calibration and Testing

• Regularly calibrate and check the accuracy of analog input signals.
• Periodically verify the integrity and effectiveness of the synchronism check function.
• Carry out comprehensive performance tests on all protection functions to ensure stable operation.