6
Condition monitoring functions
6.1
Circuit breaker condition monitoring SSCBR
6.1.1
Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE
C37.2 device
number
Circuit-breaker condition moni-
toring
SSCBR
CBCM
CBCM
6.1.2
Function block
Figure 106: Function block
6.1.3
Functionality
The circuit-breaker condition monitoring function SSCBR is used to monitor
different parameters of the circuit breaker. The breaker requires maintenance when
the number of operations has reached a predefined value. The energy is calculated
from the measured input currents as a sum of I
y
t values. Alarms are generated
when the calculated values exceed the threshold settings.
The function contains a blocking functionality which can be used to block the
function outputs.
1MRS758407 C
Condition monitoring functions
SMU615
Technical Manual
165
Summary of Contents for Relion SMU615
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