ABB RELION 620 Series Technical Manual page 567

1MAC504801-IB E
Section 6
6.1
6.1.1
6.1.2
6.1.3
620 series ANSI
Technical Manual
Supervision functions
Circuit-breaker condition monitoring 52CM
Identification
Function description
Circuit breaker condition monitoring
Function block
A070795-ANSI V3 EN
Figure 276: Function block
Functionality
The circuit breaker condition monitoring function 52CM is used to monitor different
parameters of the circuit breaker. The breaker requires maintenance when the number of
operations has reached a predefined value. For proper functioning of the circuit breaker,
it is essential to monitor the circuit breaker operation, spring charge indication, breaker
wear, travel time, number of operation cycles and accumulated energy. The energy is
calculated from the measured input currents as a sum of I
when the calculated values exceed the threshold settings.
Supervision functions
IEC 61850 IEC 60617
identification identification
SSCBR CBCM
y
t values. Alarms are generated
Section 6
ANSI/IEEE C37.2
device number
52CM
561