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Parameter: Threshold
•
Default setting (_:104) Threshold = 1000
You use the Threshold parameter to define the threshold of residual switching cycles with rated normal
current. A warning signal is generated when the statistic is less than the Threshold.
Example
Here is an example that shows you how to set the Threshold parameter. Assuming a circuit breaker with the
same technical data as provided in the example for residual switching cycles, 50 breaking operations with
rated short-circuit breaking current are permitted.
A warning signal should be issued when the number of possible breaking operations with rated short-circuit
breaking current is less than 3. For that condition, you set the Threshold value based on the following calcu-
lation:
[FoCBW2P4-301012-01.tif, 1, en_US]
9.6.5.3
Settings
Addr.
2P-method
_:1
_:101
_:102
_:103
_:104
9.6.5.4
Information List
No.
2P-method
_:54
_:52
_:53
_:301
_:302
_:303
_:304
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
Parameter
2P-method:Mode
2P-method:Switching
cycles at Ir
2P-method:Rated short-
circ.cur. Isc
2P-method:Switching
cycles at Isc
2P-method:Threshold
Information
2P-method:Inactive
2P-method:Behavior
2P-method:Health
2P-method:Endur.A
2P-method:Endur.B
2P-method:Endur.C
2P-method:Warning
Measured Values, Energy Values, and Supervision of the Primary System
C
Setting Options
•
off
•
on
•
test
100 to 1000000
10 A to 100000 A
1 to 1000
0 to 10000000
9.6 Circuit-Breaker Wear Monitoring
Default Setting
off
10000
25000 A
50
100
Data Class
Type
(Type)
SPS
O
ENS
O
ENS
O
INS
O
INS
O
INS
O
ACT
O
1031
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