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1. Product Overview

The ABB 1MRK002814-AB is a high-performance relay protection system designed for medium and high voltage power systems, providing comprehensive protection, monitoring, and automation control.
It integrates multiple protection functions including overcurrent, overvoltage, undervoltage, differential, distance, earth fault, and frequency protection. The system supports IEC 61850 and multiple industrial communication protocols for remote monitoring, data acquisition, and intelligent fault analysis.
The 1MRK002814-AB is ideal for substations, power plants, and industrial distribution systems, enhancing safety, reliability, and automation.

2. Main Technical Specifications

Parameter	Description
Model	1MRK002814-AB
Product Type	High-Performance Relay Protection System
Power Supply	AC 110–240V / DC 110–220V (optional)
Protection Functions	Overcurrent, undercurrent, overvoltage, undervoltage, differential, distance, earth fault, frequency protection, etc.
Communication Interfaces	IEC 61850, Modbus RTU/TCP, DNP3, Profibus (optional)
Input Interfaces	CT and VT signal inputs
Output Interfaces	Digital relay outputs for circuit breakers, alarm signals, and other actuators
Response Time	High-speed protection < 1 cycle (depending on function)
Display & Operation	LCD display, front panel buttons, LED status indicators
Storage	Event logging, fault recording, waveform recording
Mounting	Standard 19-inch rack or panel mounting
Environment	Industrial-grade, -25°C ~ +70°C, humidity 5–95%, vibration, dust, EMI resistant
Standards	IEC 60255, IEC 61850, IEEE C37.90, CE certified

3. Advantages and Features

Comprehensive Protection
Integrates multiple protection functions to meet diverse substation and industrial distribution requirements.
Fast Response
High-speed digital processing ensures relay action within <1 cycle during faults.
Digital and Intelligent
Supports IEC 61850 and other industrial protocols for remote monitoring, data acquisition, and smart analysis.
Event Logging and Fault Analysis
Built-in waveform and event storage enable fast diagnostics and system optimization.
Modular and Reliable
Modular design allows easy expansion; industrial-grade protection against vibration, dust, and moisture.

4. Typical Applications

High and medium voltage substation protection and control
Power plant protection systems
Transmission line protection and monitoring
Industrial distribution and automation control systems
Renewable energy plants (wind, solar) protection
Power system automation and smart distribution

Provides safe and stable operation of power systems, fast fault clearance, and intelligent analysis capabilities.

5. Installation and Usage Notes

Verify that the relay protection system model, supply voltage, and protection functions match the power system before installation.
Disconnect power before wiring to prevent electric shock or equipment damage.
System configuration and parameter setting should be performed by qualified power engineers.
Periodically check the relay status, communication interfaces, and recording functions to ensure reliable operation.
Avoid high temperature, humidity, and strong electromagnetic interference for long-term system stability.