ABB REF601 CEI - Product version history; Operational Functionality; Basic Functions

1MDU07205-YN rev. F
REF601 CEI
User’s manual
12
2.2 Product version history
Product version Release date Product history
1.0 20.03.2009 Product released
1.0 SP1 21.08.2009 Service Pack released
2.3 Operational Functionality
2.4
Basic Functions
REF601 CEI overview
2.3.1 S 2.3.1 Standard confi guration
Standard confi guration
The IED is available with one standard confi guration. The table indicates
the functions supported by the IED
2.3.2 on
Optional Function
• Modbus RTU
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 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.
Protection IEC code ANSI code
Three-phase non-directional overcurrent, low-set
stage
3I> 51
Three-phase non-directional overcurrent, high-set
stage
3I>> 50 / 51
Three-phase non-directional overcurrent, very high-
set stage
3I>>> 50 / 51
Non-directional earth-fault, low-set stage Io> 51N
Non-directional earth-fault, high-set stage Io>> 50N/51N
Three phase transformer inrush detector 3I2f> 68