ABB Relion 650 Series Technical Manual page 504

Section 13
Monitoring
Alarm limit check
When the remaining life of any phase drops below 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
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.
13.17.7.7 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-US
Figure 261: Functional module diagram for circuit breaker spring charged indication and
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.
The spring charging time SPRCHRT is available through the Monitored data view .
Alarm limit check
If the time taken by the spring to charge is more than the value set with the
setting, the subfunction generates the SPRCHRAL alarm.
It is possible to block the SPRCHRAL alarm signal by activating the BLOCK binary input.
13.17.7.8 Gas pressure supervision
The gas pressure supervision subfunction monitors the gas pressure inside the arc chamber.
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.
498
alarm
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LifeAlmLevel threshold setting, the
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tSprngChrgAlm
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Line distance protection REL650
1MRK 506 326-UUS B
Initial
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