Product Version History; Operational Functionality; Basic Functions - ABB REF601 CEI User Manual And Technical Description

1MDU07205-YN rev. F
2.2
2.3
2.3.1
2.3.2
2.4
2.4.1
REF601 CEI
User's manual

Product version history

Product version
1.0
1.0 SP1

Operational Functionality

Standard confi guration S 2.3.1 Standard confi guration
The IED is available with one standard confi guration. The table indicates
the functions supported by the IED
Protection
Three-phase non-directional overcurrent, low-set
stage
Three-phase non-directional overcurrent, high-set
stage
Three-phase non-directional overcurrent, very high-
set stage
Non-directional earth-fault, low-set stage
Non-directional earth-fault, high-set stage
Three phase transformer inrush detector
Optional Function
on
• Modbus RTU

Basic Functions

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 an existing fault via the LHMI and the communication.
When in an IED internal fault is detected, the green Ready LED ceases to glow and the
self-supervision output contact is activated. Internal fault indications have the highest
priority on the LHMI. None of the other LHMI indications can override the internal fault
indication. An indication about the fault is also shown as a message on the LHMI. The
text IRF with an additional text message, a code is shown to indicate the fault type.
The user can try to eliminate the fault by restarting the IED. If the fault is still found, the
IED stays in internal fault mode. All other output contacts are released and locked for the
internal fault. The IED continues to perform internal tests during the fault situation.
REF601 CEI overview
Release date
20.03.2009
21.08.2009
Product history
Product released
Service Pack released
IEC code ANSI code
3I> 51
3I>> 50 / 51
3I>>> 50 / 51
Io> 51N
Io>> 50N/51N
3I2f> 68
12