ABB REM615 Protection Relay

ABB REM615 Motor Protection and Control Relay

The ABB REM615 is a dedicated motor protection and control relay from the Relion® 615 series. It is specifically engineered to protect and manage asynchronous motors across a wide range of industrial applications.

Core Functions

1. Comprehensive Motor Protection
REM615 provides an extensive range of protection functions tailored for motor applications, including:

• Thermal Overload Protection: Prevents motor damage from sustained overcurrents and overheating.

• Motor Starting Time Supervision: Detects prolonged or failed motor startup sequences.

• Stalled Rotor Protection: Identifies when the rotor fails to turn during startup.

• Frequent Starting Protection: Limits excessive motor starts to avoid mechanical and thermal stress.

• Overcurrent Protection: Protects against short circuits and sudden current spikes.

• Earth-Fault Protection: Detects insulation failures or ground faults.

• Negative Sequence Current Protection: Prevents motor damage caused by phase imbalance.

• Loss of Load Supervision: Detects conditions such as a pump running dry or disconnected load.

• Reverse Rotation Protection: Prevents damage due to incorrect motor rotation direction.

• Optional Functions: Includes protections for distributed generation, capacitor banks, and arc flash incidents with high-speed outputs to minimize damage and enhance safety.

2. Motor Control
Allows remote control of motor starters and associated switching devices, supporting operational commands such as start/stop.

3. Measurement
Continuously monitors vital motor parameters—current, voltage, power, and frequency—delivering essential data for performance analysis and troubleshooting.

4. Supervision and Diagnostics
Monitors overall motor health and provides alarms, fault indications, and diagnostic data to detect issues early and reduce downtime.

Key Features and Benefits

• Integrated Protection & Control: Combines multiple motor protection, control, measurement, and supervisory functions into a single compact unit.

• IEC 61850 Compliance: Fully supports the IEC 61850 standard for modern substation automation, including:

• GOOSE messaging

• Redundancy protocols (HSR, PRP) for improved communication reliability

• Flexible and Customizable: Supplied with standard pre-configured application templates, which can be customized using ABB’s PCM600 relay management tool.

• User-Friendly Interface: Equipped with a large graphical display supporting customizable single-line diagrams (SLDs). Accessible locally and remotely via a web-based Human-Machine Interface (HMI).

• Withdrawable Design: Plug-in module simplifies installation, testing, and maintenance, reducing system downtime.

• Multi-Protocol Communication: In addition to IEC 61850, the REM615 supports:

• Modbus

• DNP3

• IEC 60870-5-103