Circuit Breaker Spring Charged Indication - ABB Relion Technical Manual

Section 14
Monitoring
14.17.7.7
614
The remaining life is calculated separately for all three phases and it is available as a
monitored data value CBLIFE_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.
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 CBLIFEAL 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 273: Functional module diagram for circuit breaker spring charged indication
and alarm
1MRK 502 048-UUS A
Technical manual