Supervision CB Make Time Stage
Description
Logic of the Stage
[Lo_sup-cb-make-time, 1, en_US]
Figure 9-30
Logic of the Supv.CB Make Time Stage
Operating Mode
The stage for the supervision of the circuit-breaker make time calculates the time between the circuit-breaker
closing command and the point in time when the current from at least one phase exceeds the
Oper.current threshold
. If this threshold has not been exceeded after 2.5 times the value of the param-
eter
CB make time
, the measurement is canceled and the output value
Make time
is set to 0 and marked
with the quality invalid.
If at least one phase of the current has exceeded the parameter
Oper.current threshold
or the param-
eter
Current thresh. CB open
at the time of the circuit-breaker closing command, the measurement is
canceled and the output value
Make time
is marked with the quality invalid.
You can define 2 independent thresholds for the supervision of the measured make time. When these thresh-
olds are exceeded, the corresponding outputs
Warning 1
and
Warning 2
are activated for 100 ms. These
can be routed in the log.
9.6.7
9.6.7.1
Measured Values, Energy Values, and Supervision of the Primary System
9.6 Circuit-Breaker Wear Monitoring
1034
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
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