ABB REM615C-D Motor Protection and Control Relay

Configured for medium-voltage motor protection and control execution in industrial power networks, the ABB REM615C-D (REM615C-D Motor Protection and Control Relay) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

Hardware Specifications

Backplane and Network Communication Architecture

• Backplane bus communication velocity Licences: Internal bus topologies optimize data transfer rates across internal processing modules to ensure rapid fault recording and event timestamping.
• Profinet / EtherNet/IP deterministic networks: Communication interfaces support standard substation automation protocols including IEC 61850, DNP3, and Modbus for deterministic data exchange and supervisory control integration.
• I/O density scaling: Flexible analogue and binary input/output configurations accommodate diverse sensor types ranging from traditional instrument transformers to modern non-conventional instrument transducers.
• Firmware flash compatibility: Onboard memory architecture permits secure firmware updates and configuration profile migrations without requiring hardware modification.

Frequently Asked Questions

Q: Does the relay support hot-swapping of plug-in modules during active MV switchgear operation?

A: System maintenance protocols require isolating the control power and disconnecting external CT and VT inputs prior to extracting module components to prevent open-circuit transformer hazards and arc flashes.

Q: How are protection settings and configuration parameters modified on this device?

A: Configuration files and protection parameters are managed via dedicated engineering software through standard communication ports, allowing offline template generation and online parameter writing.

Field Installation Guidelines

• Mount the relay housing securely into the designated cutout on the medium-voltage switchgear panel, ensuring correct physical alignment and adequate rear clearance for terminal wiring.
• Connect current transformer, voltage transformer, and auxiliary power circuits to the rear terminal blocks, verifying torque specifications and correct phase polarity before energization.
• Route low-level communication cables and binary I/O wiring separately from high-voltage primary conductors and switching power lines to mitigate electromagnetic interference.
• Ensure that the relay functional earth terminal is securely bonded to the switchgear copper ground bus using a low-impedance conductor to maintain electromagnetic compatibility and protection safety.