Auto-Recloser (Arcl) Measurements Menu - DEMA CPM 310 G User Manual

Auto-Recloser (ARCL) Measurements Menu

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Measurements
Having examined the explanations above, the following example tries to figure the behavior of the
(Auto-Recloser) Measurements Menu
ARCL
below is given presuming that the CPM 310 G unit is configured to make two auto-reclose shots when
the CB is tripped by I>> function.
1. When the CB is tripped by the I>> function, the auto-recloser would conduct a reclose shot.
2. If the failure is detected again, the CB will be tripped by the I>> function again, and the
auto-recloser will conduct a second reclose shot.
3. If the failure is detected for the third time, the CB will be tripped and the auto-recloser will be
blocked.
For a scenario as above, formerly reset measurements will read as following:
Total Cycles
1 st Cycle
2 nd Cycle
3 rd Cycle
4 th Cycle
ARCL Blocks
□
5 For detailed information on the configuration of auto-recloser, please refer to the
Settings Menu
Section on this Manual.
Auto-Recloser
to be used by statistical and diagnostic means; therefor
all values displayed on the menu can be reset when
needed. E.g., pressing S3 (Reset) button while at the
menu shown on the top picture will reset the
Cycle
all measurements on the menu.
The measurements available on the menu are
described below.
Total Cycles Measurement
This measurement is the summation of the values of
1 st
the total number of CB closing commands generated by
the auto-recloser function.
1 st
These values give the total CB closing commands
generated by the auto-reclose function for each of the
cycles.
ARCL Blocks Measurement
This measurement displays the total number of the
instances that auto-recloser is blocked.
when an auto-recloser session is completed. The example
5
00002
00001
00001
00000
00000
00001
(ARCL) Measurements Menu
s measurement value. This action is applicable for
, 2 nd , 3 rd and 4 th cycle measurements and represents
, 2 nd , 3 rd and 4 th Cycle Measurements
- 93 -
is intended
Total
Auto-recloser