1. Description
REF610 is a feeder protection relay for protection, measuring
and supervision of utility and industrial distribution power
systems. REF610 is a member of ABB’s Relion
®
protection and
control product family and part of its 610 product series. The
610 series includes protection relays for feeder protection,
motor protection and general system voltage supervision. The
plug-in design of the 610 series protection relays facilitates the
commissioning of the switchgear and enables fast and safe
insertion and withdrawal of relay plug-in units.
The protection relay is primarily targeted at the protection of
incoming and outgoing feeders in distribution substations.
REF610 is also used as back-up protection for motors,
transformers and generators in utility and industry applications.
Further, the 610 series protection relays are suitable for
employment in marine and offshore environments.
The numerical feeder protection relays of the 610 series
support a wide range of standard communication protocols,
among them the IEC 61850, IEC 60870-5-103, DNP3, Modbus,
Profibus, LON and SPA communication protocols.
2. Functional overview
Table 1. Functionality
Description
Protection
Three-phase overcurrent, low-set stage
●
Three-phase overcurrent, high-set stage
●
Three-phase overcurrent, instantaneous stage
●
Non-directional earth fault, low-set stage
●
Non-directional earth fault, high-set stage
●
Phase discontinuity
●
Three-phase thermal overload for cables
●
Circuit-breaker failure
●
Arc protection, two lens sensors for arc detection
o
Autoreclosing
●
Lockout relay function
●
Condition monitoring
Trip circuit supervision
●
Trip lockout function
●
Trip counters for circuit-breaker condition monitoring
●
Measurement
Disturbance recorder
●
Residual current
●
Three-phase current
●
Phase unbalance
●
Thermal level
●
● = Included o = Optional
Feeder Protection
1MRS756295 G
REF610
Product version: C
Issued: 2019-03-14
Revision: G
ABB
3
