Accumulation Of Iyt - ABB COM600 series User's & Technical Manual

5.6.
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COM600 series 5.1
Substation Analytics Technical Manual
The operation of the subfunction can be described with a module diagram. All the
modules in the diagram are explained in the next sections.
Figure 5.5.2-1 Functional module diagram for counting circuit breaker operations
Operation counter
The operation counter counts the number of operations based on the state change of the
binary auxiliary contacts inputs POSCLOSE and POSOPEN.
The number of operations NO_OPR is available in the monitored data view on the LHMI
or through tools via communications. The old circuit breaker operation counter value
can be taken into use by writing the value to the Counter initial Val parameter and by
setting the parameter CB wear values in the clear menu from WHMI or LHMI. The set
values will be taken into use when trigger application is next time run.
Alarm limit check
The OPR_ALM operation alarm is generated when the number of operations exceeds
the value set with the Alarm Op number threshold setting. However, if the number of
operations increases further and exceeds the limit value set with the Lockout Op number
setting, the OPR_LO output is activated.
Accumulation of I
Accumulation of the I y t module calculates the accumulated energy.
The operation of the module can be described with a module diagram. All the modules
in the diagram are explained in the next sections.
functional_module_diagram_for_counting_circuit_breaker_operations.png
y t
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