ABB RELION 620 Series Technical Manual page 917

1MRS757644 F
Section 7
7.1
7.1.1
7.1.2
7.1.3
620 series
Technical Manual
Condition monitoring functions
Circuit-breaker condition monitoring SSCBR
Identification
Function description
Circuit-breaker condition monitoring
Function block
A070795 V3 EN
Figure 474: Function block
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
calculated values exceed the threshold settings.
The function contains a blocking functionality. It is possible to block the function
outputs, if desired.
Condition monitoring functions
IEC 61850 IEC 60617
identification identification
SSCBR CBCM
y
t values. Alarms are generated when the
Section 7
ANSI/IEEE C37.2
device number
CBCM
911