ABB REF601 User Manual

1MDU07212-YN Rev. C Section 2
REF601/REJ601 overview
REF601 / REJ601 9
Application Manual
Table 1: Relay functions, continue
Related products
REJ601 /
REF601
REJ601 /
REF601
REF601
Functionality ANSI IEC B C D
Protection
Phase discontinuity protection 46PD I2/I1> - ● ●
Negative
-
sequence overcurrent
protection
46 I2> - - ●
Circuit breaker failure protection
51BF/51
NBF
3I>/Io>B
F
- ● ●
Master trip 86
Master
Trip
● ● ●
Two setting group ● ● ●
Three phase transformer inrush
detector
68 3I2f> ● ● ●
Three
-
phase thermal protection for
feeders, cables and distribution
transformers
49 3Ith> - ● ●
Control (Function available in REF601 )
Breaker control functionality
I <
-
> O
CB
I <
-
> O
CB
● ● ●
Auto-reclosing 79 O -> I - - ●
Condition monitoring
Trip circuit supervision TCM TCS ● ● ●
Measurement
Three-phase current measurement 3I 3I ● ● ●
Residual current measurement In Io ● ● ●
Negative phase sequence current I2 I2 - - ●
Thermal level ϑ ϑ - ● ●
Operation counter - - - ● ●
● = Included
2.3.2 Optional function
The relay has optional communication MODBUS RTU and IEC 60870-5-103
protocol on RS485 two wire.
2.4 Other Functions
2.4.1 Self-Supervision
The IED is provided with an extensive self-supervision system which continuously
supervises the software and the electronics. It handles run-time fault situations and
informs the user about a fault via the LHMI.

ABB REF601 Specifications

General

Brand	ABB
Model	REF601
Category	Protection Device
Language	English