Description
| Product Model | REM615 |
| Manufacturer | ABB |
| Product Category | Motor Protection and Control Relay |
| Supported Protocols | IEC 61850, Modbus, IEC 60870-5-103 |
| Voltage Rating | Up to 35kV |
| Protection Functions | Thermal Overload, Rotor Lock, Phase Unbalance |
| Temperature Monitoring | Up to 8 RTD Inputs (Optional) |
| Arc Flash Protection | Optional 3-Channel Arc Protection |
| Communication | GOOSE, IEC 61850-9-2 LE |
| Form Factor | Compact, Rack Mountable |
Product Introduction
The ABB REM615 is a sophisticated, dedicated motor protection and control relay designed to safeguard asynchronous motors in manufacturing and processing industries. As a key member of the ABB Relion® product family, the REM615 integrates comprehensive protection, control, measurement, and monitoring functions into a single, compact unit. This versatile relay is engineered to manage the entire lifecycle of a motor, from startup supervision to normal operation, and provides critical fault clearing during abnormal conditions.
Built on the IEC 61850 standard, the REM615 supports advanced horizontal communication and substation interoperability without requiring additional modules. The REM615 offers a wide array of protection functions, including thermal overload, rotor lock, phase unbalance, and ground fault protection. With optional RTD inputs for stator and bearing temperature monitoring, as well as integrated arc flash protection, the REM615 ensures maximum personnel safety and equipment longevity. Its flexible configuration and support for multiple communication protocols make the REM615 an ideal choice for modern, networked industrial automation systems.
Core Advantages and Technical Highlights
Core Advantages and Technical HighlightsComprehensive Motor Protection Suite: The REM615 provides a complete suite of protection functions specifically tailored for asynchronous motors. It includes thermal overload protection, rotor lock protection, and phase unbalance protection to prevent costly motor damage. The REM615 also features motor start supervision and frequent start protection, ensuring that motors are not subjected to excessive thermal stress during demanding operational cycles.
Advanced Temperature and Arc Flash Monitoring: To further enhance motor protection, the REM615 supports optional RTD/mA input modules. These modules allow the REM615 to monitor up to 8 analog signals, providing direct temperature feedback from motor bearings and stator windings. Additionally, the REM615 can be equipped with up to three arc flash sensor interfaces. In the event of an internal arc fault, the REM615 can initiate a high-speed trip, significantly reducing equipment damage and improving personnel safety.
Seamless IEC 61850 Integration: The REM615 is natively compliant with the IEC 61850 communication standard, including support for GOOSE messaging and IEC 61850-9-2 LE for sampled values. This allows the REM615 to participate in high-speed horizontal communication and process bus architectures. The REM615 also supports IEEE 1588 V2 for precise time synchronization, making it a reliable component in complex, time-critical protection schemes.
Flexible Configuration and User Interface: The REM615 features a large, customizable graphical display that can show a single-line diagram of the protected motor circuit. Configuration is streamlined through the PCM600 tool, which allows engineers to use pre-defined standard configurations or create custom logic using graphical programming. The REM615 also offers a web-based HMI for remote monitoring and control, providing operators with real-time access to motor status and protection events.
Typical Application Scenarios
High-Voltage Motor Protection in Power Generation: In power plants, large auxiliary motors such as boiler feed pumps and induced draft fans require reliable and fast protection. The REM615 is ideally suited for these critical applications, providing comprehensive protection for motors up to 35kV. Its high-speed arc flash protection and thermal overload functions ensure that these essential motors are safeguarded against catastrophic failures, minimizing unplanned outages.
Industrial Manufacturing and Processing: Manufacturing facilities rely on a vast network of medium and low-voltage motors to drive conveyors, crushers, mixers, and fans. The REM615 serves as the primary protection device for these motors, offering features like loss-of-load protection and phase reversal detection. The REM615‘s ability to monitor motor temperature via RTDs helps prevent premature aging and allows for predictive maintenance, reducing overall operational costs.
Water and Wastewater Treatment Plants: Water treatment plants operate numerous large pumps and blowers that are critical to continuous service. The REM615 provides robust protection for these motors, including ground fault protection using core-balance CTs. The REM615‘s IEC 61850 communication capabilities allow it to integrate seamlessly into the plant’s SCADA system, providing operators with centralized monitoring and control of all motorized assets.
Related Model Recommendations
Related Model RecommendationsRET615: A transformer protection relay from the same Relion® 615 series, often used alongside the REM615 to protect the supply transformers for motor loads.
REF615: A feeder protection relay in the Relion® 615 family, designed to protect the distribution feeders that supply power to motors protected by the REM615.
REG615: A generator protection relay from the same series, used to protect distributed generation units that may be connected to the same network as motors.
REV615: A capacitor bank protection relay from the Relion® 615 series, used for power factor correction in industrial networks with large motor loads.
PCM600: The configuration and management tool for the REM615, essential for setting parameters, creating logic, and commissioning the relay.
REF615: A feeder protection relay in the Relion® 615 family, designed to protect the distribution feeders that supply power to motors protected by the REM615.
REG615: A generator protection relay from the same series, used to protect distributed generation units that may be connected to the same network as motors.
REV615: A capacitor bank protection relay from the Relion® 615 series, used for power factor correction in industrial networks with large motor loads.
PCM600: The configuration and management tool for the REM615, essential for setting parameters, creating logic, and commissioning the relay.
Installation, Commissioning and Maintenance Instructions
Installation Preparation: Before installing the REM615, ensure that the control cabinet provides adequate space for ventilation and that the mounting surface is clean and dry. Verify that all current and voltage transformer wiring is correct and that the CT polarities are observed, as incorrect polarity can cause protection malfunctions. When connecting the optional RTD inputs, use shielded twisted-pair cable to prevent noise interference. Always follow the manufacturer’s wiring diagrams and safety guidelines when working with high-voltage circuits.
Maintenance Suggestions: The REM615 is designed for long-term, maintenance-free operation, but periodic verification is recommended. Regularly check the relay’s event log and disturbance records to identify any recurring issues or nuisance trips. Utilize the REM615‘s built-in self-monitoring functions to ensure the health of the relay’s internal circuits. Keep the relay’s firmware up to date using the PCM600 tool to benefit from the latest features and bug fixes. A visual inspection of the terminal connections should be performed during scheduled outages to ensure they remain tight and secure.
