ABB RELION 650 SERIES, Technical Manual

Page: 584 / 942

The closing time is calculated by adding the value set with the CloseTimeCorr
(t3+t4) setting to the measured closing time.
The last measured opening travel time (
TTRVOP
) and the closing travel time
(
TTRVCL
) are given as service values.
The values can be reset using the Clear menu on the LHMI or by activation the
input
RSTCBWR
.
Alarm limit check
When the measured opening travel time is longer than the value set in the
tTrOpenAlm setting, the
TRVTOPAL
output is activated. Similarly, when the
measured closing travel time is longer than the value set in the tTrCloseAlm setting,
the
TRVTCLAL
output is activated.
It is also possible to block the
TRVTCLAL
and
TRVTOPAL
alarm signals by
activating the
BLKALM
input.
14.4.7.2 Circuit breaker status
GUID-390A1250-B258-4023-9A7D-0D7E19E13A6C v12
The circuit breaker status subfunction monitors the position of the circuit breaker,
that is, whether the breaker is in the open, closed or error position. The operation is
described in figure
295 .
Phase current
check
Contact
position
indicator
POSCLOSE
POSOPEN
I3P-ILRMSPH
OPENPOS
CLOSEPOS
INVDPOS
IEC12000613-3-en.vsd
IEC12000613 V3 EN-US
Figure 295: Functional module diagram for monitoring circuit breaker status
Phase current check
The module compares the phase current I3P-ILRMSPH to the AccStopCurr setting.
If the current in the selected phase exceeds the set level, it is reported to the contact
position indicator module as closed circuit breaker.
Contact position indicator
The circuit breaker status is open when the auxiliary input contact
POSCLOSE
is
low, the
POSOPEN
input is high and the phase current is less than the setting
AccStopCurr value. The circuit breaker is closed when the
POSOPEN
input is low
and the
POSCLOSE
input is high. The breaker is in the error state if both auxiliary
Section 14
1MRK 506 382-UEN A
Monitoring
578 Line distance protection REL650 2.2 IEC
Technical manual