The ABB REF615 is a dedicated feeder protection and control relay for the protection, control, and monitoring of overhead lines and feeders in medium-voltage power distribution systems. It is a member of ABB’s Relion® family of protection and control products and is part of its 615 series of intelligent electronic devices (IEDs).
The REF615 is a compact and withdrawable unit designed for easy installation and maintenance. It is available in four different standard configurations to meet the specific needs of different applications. The basic configuration includes protection functions for overcurrent, earth fault, and thermal overload, as well as control and monitoring functions for breaker control, metering, and communication.
The REF615 can be used for a variety of applications, including:
- Protection of overhead lines and feeders
- Control of switchgear and breakers
- Monitoring of power system parameters
- Communication with other substation devices
The REF615 is a reliable and versatile protection and control relay that can help to improve the safety, reliability, and efficiency of medium-voltage power distribution systems.
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