ABB REM615E_D Control Relay

The ABB REM615E_D, also cataloged as the REM615E_D digital protection and control relay, operates as a dedicated hardware component for motor protection and electrical measurement within Relion 615 platforms.

Hardware Specifications

Backplane Bus Communication Velocity and Firmware Compatibility

The digital protection architecture relies on backplane bus communication velocity and deterministic communication standards to transmit real-time electrical measurements such as current, voltage, power, and energy. I/O density scaling and firmware flash compatibility ensure seamless integration with substation automation networks while maintaining protocol conversion integrity across Modbus, DNP3, and IEC 61850 interfaces.

Frequently Asked Questions

Q: What auxiliary power supply ranges are supported by the REM615E_D relay?

A: The relay supports an auxiliary power supply of 48–250 VDC or 100–240 VAC.

Q: Which communication protocols are integrated into the device firmware?

A: The unit supports IEC 61850 (Editions 1 and 2), Modbus, DNP3, and IEC 60870-5-103.

Q: What primary motor protection features are included in the unit?

A: It provides overload protection, start timeout, loss of load, stator overcurrent (stuck), and phase sequence protection.

Field Installation Guidelines

1. Mount the relay securely into a standard cutout on the switchgear panel or control cabinet door.
2. Verify that the auxiliary power supply matches the 48–250 VDC or 100–240 VAC rating before energizing the device.
3. Ensure proper grounding of the relay chassis to a dedicated earth bus to prevent electromagnetic interference and transient surges.
4. Terminate communication cables and CT/VT wiring securely according to standard substation wiring diagrams.