Table 5.1.17.1.-11
E13...E22
Channel
Event
Description
Weighting
factor
Default
value
3
E13
Open CB command activated
1
0
3
E14
Open CB command reset
2
0
3
E15
Close CB command activated
4
0
3
E16
Close CB command reset
8
0
3
E17
CB reclosing failed signal activated
16
1
3
E18
CB reclosing failed signal reset
32
1
3
E19
CB reclosing disabled
64
1
3
E20
CB reclosing disabled reset
128
1
3
E21
AR cancelled
256
1
3
E22
AR cancelled reset
512
1
Default value of event mask 3V156
1008
5.1.18.
Self-supervision (IRF) system
The relay is provided with an extensive self-supervision system which continuously
supervises the software and the electronics of the relay. It handles run-time fault
situations and informs the user about an existing fault via a LED on the HMI and a
text message on the LCD. There are two types of fault targets: IRF targets and
warnings.
Internal relay fault
When an internal relay fault preventing relay operation is detected, the relay first
tries to eliminate the fault by restarting. Only after the fault is found to be
permanent, the green target LED (ready) begins to flash and the self-supervision
output contact is activated. All other output contacts are returned to the initial state
and locked for the internal relay fault. Further, a fault target message appears on the
LCD, including a fault code.
IRF targets have the highest priority on the HMI. None of the other HMI targets can
override the IRF target. As long as the green target LED (ready) is flashing, the fault
target cannot be cleared. In case an internal fault disappears, the green target LED
(ready) stops flashing and the relay is returned to the normal service state, but the
fault target message remains on the LCD until manually cleared.
The IRF code indicates the type of internal relay fault. When a fault appears, the
code is to be recorded and stated when ordering service. The fault codes are listed in
the following table:
136
REF610
REF610
Feeder Protection Relay
Technical Reference Manual - ANSI Version
1MRS755535
Summary of Contents for RELION REF610
Page 1: ...Feeder Protection Relay REF610 REF610 Technical Reference Manual ANSI Version ...
Page 2: ......
Page 6: ...6 ...
Page 8: ...8 ...
Page 12: ...12 ...
Page 14: ...14 ...
Page 20: ...20 ...
Page 164: ...164 ...
Page 175: ......