Basler Electric BE1-11t - Manual (Page 182)

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be read or changed through the communication ports using BESTCOMSPlus. Use the Metering Explorer
to open the Reports, Breaker Monitor screen shown in Figure 125.
Figure 125. Breaker Report Screen
Breaker Operate Time Monitoring
The breaker operate time monitor tracks the time from when a trip output occurs (defined by the Trip logic
expression) to when the fast current detector observes that current is zero in all three breaker poles. This
time is reported as a line in the fault summary reports. See the
Fault Reporting chapter for more
information about the Trip logic expression and fault summary reports.
Breaker operate time can be monitored to give an alarm when the value exceeds a threshold. Breaker
Alarms provides more information about this feature.
Breaker Alarms
Three alarm points are included in the programmable alarms for checking breaker monitoring functions.
Each alarm point can be programmed to monitor any of the three breaker monitoring functions, operations
counter, interruption duty, or clearing time. An alarm threshold can be programmed to monitor each
function. Alternately, three different thresholds can be programmed to monitor one of the monitored
functions.
Breaker Alarms Settings
BESTCOMSPlus Navigation Path: Settings Explorer, Alarm Configuration, Breaker Monitoring
HMI Navigation Path: Settings Explorer, Alarm Configuration, Breaker Monitor
Settings are made using BESTCOMSPlus. Use the Settings Explorer to open the Alarm Configuration,
Breaker Monitoring tree branch shown in Figure 123.
Using the pull-down menus and settings boxes, make the application-appropriate settings to the breaker
alarms.
Table 64 summarizes the breaker alarms settings.
Table 64. Breaker Alarms Settings
Setting Range/Unit of Measure/Increment Default
Mode Disabled, Duty, Operation, or Clearing Time Disabled
Threshold
Duty 0 to 200 percent, increment = 1 0
Operation 0 to 99,999 breaker operations, increment = 1 0
Clearing Time 0 to 1,000 milliseconds, increment = 1 0
Breaker Monitoring BE1-11t