Functionality - ABB REG650 Technical Manual

Generator protection
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1MRK 502 043-UUS B
14.16.2
14.16.3
14.16.4
Technical Manual

Functionality

The circuit breaker condition monitoring function SSCBR is used to monitor different
parameters of the circuit breaker. The breaker requires maintenance when the number
of operations has reached a predefined value. For proper functioning of the circuit
breaker, it is essential to monitor the circuit breaker operation, spring charge
indication, breaker wear, travel time, number of operation cycles and accumulated
energy. The energy is calculated from the measured input currents as a sum of I
values. Alarms are generated when the calculated values exceed the threshold settings.
The function contains a blocking functionality. It is possible to block the function
outputs, if desired.
Function block
SSCBR
I3P*
TRVTOAL
BLOCK
TRVTCAL
BLK_ALM
SPRCHRAL
POSOPEN
OPRALM
POSCLOSE
OPRLOALM
ALMPRES
IACCALM
LOPRES
IACCLOAL
SPRCHRGN
CBLIFEAL
SPRCHRGD
NOOPRALM
CBCNTRST
PRESALM
IACCRST
PRESLO
SPCHTRST
CBOPEN
TRVTRST
CBINVPOS
52a
ANSI10000281-1-en.vsd
ANSI10000281 V1 EN
Figure 214:
SSCBR function block
Signals
Table 361:
SSCBR Input signals
Name
Type
I3P
GROUP
SIGNAL
BLOCK
BOOLEAN
BLK_ALM
BOOLEAN
POSOPEN
BOOLEAN
POSCLOSE
BOOLEAN
ALMPRES
BOOLEAN
LOPRES
BOOLEAN
Table continues on next page
Default
Description
-
Three phase group signal for current inputs
0
Block of function
0
Block all the alarms
0
Signal for open position of apparatus from I/O
0
Signal for close position of apparatus from I/O
0
Binary pressure alarm input
0
Binary pressure input for lockout indication
Section 14
Monitoring
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2 t
483

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