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Element
Range
fLALM
25.0 – 75.0 Hz
fLWAR
25.0 – 75.0 Hz
fHYST
0.00 – 0.10 Hz
IeHALM
0.00 – 99.99 kA
IeHWAR
0.00 – 99.99 kA
IeLALM
0.00 – 99.99 kA
IeLWAR
0.00 – 99.99 kA
IeHYST
0 – 100 A
VeHALM
0.0 – 999.9 kV
VeHWAR
0.0 – 999.9 kV
VeLALM
0.0 – 999.9 kV
VeLWAR
0.0 – 999.9 kV
VeHYST
0.0 – 20.0 kV
Demand time
1/5/10/15/30/60 min
Counter, in-service and operation time monitor function
This counter function counts the following items:
- Trip and autoreclosing
- ∑ I
y
- Operating devices on MIMIC diagram (CB, DS, EDS)
- Configurable counts (max. 8)
The counted values can be reset or set to any values manually.
The counter counts the number of trip and autoreclosing ARC.
The following ∑ I
y
counter are also provided:
The ∑ I
y
counter increments the value of current to the power 'y', recorded at the time of issue of
the tripping signal, on a phase by phase basis. An alarm is issued when the count for any phase
exceeds a user-defined setting ∑ I
The ∑ I
count alarm can be enabled or disabled by setting the scheme switch [ ∑ I
y
The count-up timing of devices can be selected one from among the "OFF" to "ON" status, "ON"
to "OFF" status, both "ON" and "OFF", and a cycle. The cycle is for counting operation times. It
counts up a whole cycle as follows:
Close control -> Close status -> Open control -> Open status
(Earth control -> Earth status -> Free control -> Free status in case of EDS)
The contact conditions of above devices are input to binary input circuits configured by PLC
function. (Refer to Section 3.2.2.)
An alarm is issued when the count exceeds a user-defined setting of each device i.e. CBCTALM.
The device count alarm can be enabled or disabled by setting the scheme switch of each device i.e.
[CBCTAEN].
Step
Default
0.1
25.0 Hz
0.1
25.0 Hz
0.1
0.00 Hz
0.01
0.00 kA
0.01
0.00 kA
0.01
0.00 kA
0.01
0.00 kA
1
0 A
0.1
0.0 kV
0.1
0.0 kV
0.1
0.0 kV
0.1
0.0 kV
0.1
0.0 kV
10 min
y
ALM.
⎯
⎯
117
6 F 2 S 0 8 4 2
Remarks
Frequency Q low alarm
Frequency Q low warning
Frequency Q hysteresis setting
Current Ie high alarm
Current Ie high warning
Current Ie low alarm
Current Ie low warning
Current Ie hysteresis setting
Voltage Ve high alarm
Voltage Ve high warning
Voltage Ve low alarm
Voltage Ve low warning
Voltage Ve hysteresis setting
Demand time
y
AEN].
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