Description
ABB REF615E feeder protection and measurement device
REF615E is a feeder protection and measurement device of ABB Relion 615 series, which belongs to compact multifunctional intelligent electronic equipment. It is designed for substations and industrial distribution systems, integrating protection, control, measurement, and monitoring.

ABB REF615E feeder protection and measurement device
In terms of core functions, it supports overcurrent protection (directional/non directional, multi-stage configuration), grounding protection (including multi frequency admittance grounding, suitable for selective directional protection of high impedance grounded power grids), thermal overload protection, voltage frequency protection, and can be equipped with three arc detection channels to achieve rapid protection of switch cabinet arc light, while providing high-precision real-time measurement of current, voltage, power, and energy.
In terms of communication, it supports protocols such as IEC 61850 (including HSR, PRP redundancy, and GOOSE messages), Modbus RTU/TCP, IEC 60870-5-103, etc. The configuration tool is PCM600 software, and it supports deep custom protection logic.
In terms of hardware, it adopts a pull-out plug-in design, standard rail installation, working temperature of -20 ℃ to+70 ℃, protection level of IP20, and a matching graphical LCD panel that supports local viewing and modification of settings. Panel damage does not affect the protection function.
Typical applications include feeder protection in public substations, main and backup protection in distribution networks, arc protection in metal armored switchgear, and industrial distribution scenarios such as mines, cement plants, and steel mills.
In summary, REF615E is a compact feeder protection and measurement device from ABB, with directional overcurrent, multi frequency admittance grounding, and arc protection as its core. It supports IEC 61850 multi protocol communication and is a mature solution for medium voltage distribution systems that balances protection reliability and communication flexibility.

