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4-16
Supporting Functions
857-UM001A-EN-P – July 2009
Equation 4.4
C
Δ
=
AlarmMax
C
945
Δ
=
Δ
=
=
3
L
1
L
2
313
Thus Alarm2 counters for phases L1 and L2 are decremented by
3. In phase L1 the currents is less than the alarm limit current 6
kA. For such currents the decrement is one.
Δ
=
1
L
3
Table 4.14 – Local Panel Parameters of CBWEAR Function
Parameter
Value
CBWEAR STATUS
Al1L1
Al1L2
Al1L3
Al2L1
Al2L2
Al2L3
Latest trip
Date
time
IL1
IL2
IL3
CBWEAR SET
Alarm1
Current
0.00 – 100.00
Cycles
100000 – 1
Alarm2
Current
0.00 – 100.00
Cycles
100000 – 1
CBWEAR SET2
Al1On
On
Off
Al1Off
On
Off
Al2On
On
Off
Al2Off
On
Off
Clear
–
Clear
Set = An editable parameter (password needed)
The breaker curve table is edited with SETPOINTPS.
Unit
Description
Operations left for
- Alarm 1, phase L1
- Alarm 1, phase L2
- Alarm 1, phase L3
- Alarm 2, phase L1
- Alarm 2, phase L2
- Alarm 2, phase L3
Time stamp of the latest trip
operation
A
Broken current of phase L1
A
Broken current of phase L2
A
Broken current of phase L3
kA
Alarm1 current level
Alarm1 limit for operations left
kA
Alarm2 current level
Alarm2 limit for operations left
'Alarm1 on' event enabling
'Alarm1 off' event enabling
'Alarm2 on' event enabling
'Alarm2 off' event enabling
Clearing of cycle counters
Set
Set
Set
Set
Set
Set
Set
Set
Set
Set
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