Circuit Breaker Spring Charged Indication - ABB REG650 Technical Manual

1MRK 502 034-UEN -
13.15.7.7
Technical Manual
The remaining life is calculated separately for all three phases and it is available as
a monitored data value CB_LIFE_A (_B,_C). The values can be cleared by
setting the parameter CB wear values in the clear menu from LHMI.
Clearing CB wear values also resets the operation counter.
The remaining life is calculated separately for all three phases and it is available as
a monitored data value CBLIFEL1 (L2, L3).
Alarm limit check
When the remaining life of any phase drops below the LifeAlmLevel threshold
setting, the corresponding circuit breaker life alarm CBLIFEAL is activated.
It is possible to deactivate the CB_LIFE_ALM alarm signal by activating the
binary input BLOCK. The old circuit breaker operation counter value can be taken
into use by writing the value to the Initial CB Rmn life parameter and resetting the
value via the clear menu from LHMI.
It is possible to deactivate the CBLIFEAL alarm signal by activating the binary
input BLOCK.

Circuit breaker spring charged indication

The circuit breaker spring charged indication subfunction calculates the spring
charging time.
The operation of the subfunction can be described by using a module diagram. All
the modules in the diagram are explained in the next sections.
GUID-37EB9FAE-8129-45AB-B9F7-7F7DC829E3ED V1 EN
Figure 215: Functional module diagram for circuit breaker spring charged
indication and alarm
Spring charge time measurement
Two binary inputs, SPRCHRGN and SPRCHRGD, indicate spring charging started
and spring charged, respectively. The spring charging time is calculated from the
difference of these two signal timings.
Section 13
Monitoring
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