ABB REG650 ANSI, Technical Manual

Page: 566 / 728

14.17.2 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 block alarm functionality.
The supervised and presented breaker functions include
• breaker open and close travel time
• spring charging time
• number of breaker operations
•
accumulated I
Y
t per phase with alarm and lockout
• remaining breaker life per phase
• breaker inactivity
14.17.3 Function block
GUID-365D67A9-BEF8-4351-A828-ED650D5A2CAD V1 EN
Figure 264: SSCBR function block
14.17.4 Signals
Table 428: SSCBR Input signals
Name Type Default Description
I3P GROUP
SIGNAL
- Three phase group signal for current inputs
BLOCK BOOLEAN 0 Block of function
BLK_ALM BOOLEAN 0 Block all the alarms
POSOPEN BOOLEAN 0 Signal for open position of apparatus from I/O
POSCLOSE BOOLEAN 0 Signal for close position of apparatus from I/O
ALMPRES BOOLEAN 0 Binary pressure alarm input
Table continues on next page
Section 14
1MRK 502 048-UEN A
Monitoring
560
Technical manual