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Rev.01
72/151
8.9 Function 52. Breaker Wear Monitoring
This control function can be set by using the following parameters:
Function
Description
Minimum
Maximum
Step
Unit
Default
52
Breaker Wear Monitoring
Maximum number of openings
1
100000
1
-
1000
Maximum accumulated amperes
1
100000
1
M(A²)
100
Repetitive number of openings
1
100000
1
-
3
Time for repetitive number of openings
1
300
1
min
3
Maximum opening time
0.020
300.000
0.001
s
0.10
Maximum closing time
0.020
300.00
0.001
s
0.10
NOTE:
The “Maximum accumulated amperes” adjustment units are M(A²) (square mega amperes)
whilst the “Accumulated amperes counter” units are K(A²) (square kilo amperes).
This function allows to monitor the status of the circuit breaker and to perform preventive maintenance.
The following statuses are associated with this function:
Function Status
Description
52
Startup
These are the different statuses of the circuit breaker
automatic control.
The function only is initialized on Start when the relay is switched on.
If the relay doesn’t lose power supply, the last state is maintained.
Error
Open
Opening time
Opening error
Closed
Closing time
Closing error
Configured number of openings alarm
Activated if the counter that measures the number of openings exceeds
the
‘
Maximum number of openings
’
setting
Configured accumulated amperes (I
2
t)
alarm
Activated if the accumulated amps counter exceeds
‘
Maximum
Accumulated Amp
eres’
setting
Configured number of openings in a time
frame alarm
Activated if the number of openings exceeds the setting in
‘
Maximum
Number of Repetitive Openings
’
during the time set in
‘
Time of
Repetitive Openings
‘
. It works like a time accumulator, to be active it
needs to detect openings within the range defined by these two
settings.
Monitoring function of circuit breaker will be more difficult depending on the available circuit breaker
contacts, zero, only one (52a or 52b) or both (52a and 52b).
Содержание SIL-G
Страница 1: ...USER S MANUAL USER S MANUAL SIL G Feeder Relay...
Страница 8: ...www fanox com Rev 01 8 151 2 3 Connection diagrams 2 3 1 Analog current connections...
Страница 10: ...www fanox com Rev 01 10 151 3 VT configuration phase neutral...
Страница 11: ...www fanox com Rev 01 11 151 3 VT configuration phase neutral residual voltage...
Страница 12: ...www fanox com Rev 01 12 151 3VT configuration phase phase residual voltage...
Страница 13: ...www fanox com Rev 01 13 151 2VT configuration phase phase residual voltage...
Страница 14: ...www fanox com Rev 01 14 151 3 VT configuration phase neutral phase B line voltage...
Страница 27: ...www fanox com Rev 01 27 151 Dimensions 175x175x150 3 3 Functional diagram...
Страница 28: ...www fanox com Rev 01 28 151...
Страница 46: ...www fanox com Rev 01 46 151 4 10 4 Thermal protection curves This is the thermal curve for 3 minutes...
Страница 69: ...www fanox com Rev 01 69 151 General trip...
Страница 88: ...www fanox com Rev 01 88 151...
Страница 89: ...www fanox com Rev 01 89 151...
Страница 90: ...www fanox com Rev 01 90 151...
Страница 95: ...www fanox com Rev 01 95 151 Time Minutes Seconds Milliseconds...
Страница 150: ...www fanox com Rev 01 150 151 NOTES...
Страница 151: ...www fanox com Rev 01 151 151...