REF615 is a dedicated feeder protection and control relay designed for the protection,
control, measurement and supervision of utility substations and industrial power
systems including radial, looped and meshed distribution networks with or without
distributed power generation. REF615 is a member of ABB’s Relion
product family
and part of its 615 protection and control product series. The 615 series relays are
characterized by their compactness and withdrawable-unit design.
Re-engineered from the ground up, the 615 series has been designed to unleash the full
potential of the IEC 61850 standard for communication and interoperability between
substation automation devices.
The relay provides main protection for overhead lines and cable feeders in distribution
networks. The relay is also used as back-up protection in applications, where an
independent and redundant protection system is required.
Depending on the chosen standard configuration, the relay is adapted for the
protection of overhead line and cable feeders in isolated neutral, resistance earthed,
compensated and solidly earthed networks. Once the standard configuration relay has
been given the application-specific settings, it can directly be put into service.
The 615 series relays support a range of communication protocols including IEC
61850 with Edition 2 support, process bus according to IEC 61850-9-2 LE, IEC
60870-5-103 and Modbus
. Profibus DPV1 communication protocol is supported by
using the protocol converter SPA-ZC 302.
