Cb Supervision Settings Menu - DEMA CPM 310 G User Manual

CB Supervision Settings Menu

Main Screen » Menu »
Automatic Control Settings »
CB Supervision
CB Supervision Settings Menu
the following 9 functions that are effective on the CB.
1. Opening Time Supervision
This function measures and supervises the time interval
between the generation of tripping impulse and the
disappearance of 52a signal from the CB. If the
measured value is evaluated greater than the set value,
the Alarm LED is activated; "CB Alarm" and "CB Open
Failure" texts are displayed on the
Note that, the tripping time of the CB declared by the
manufacturer and the maximum tripping delay time
taken into account while the selectivity evaluations are
made must be considered when determining the
Opening Time
value.
Opening Time Supervision
To utilize
function must be set as
52a
input with assignment must be wired to a normally
open auxiliary contact of the CB. The measured tripping
time for the latest operation of the CB can be viewed
and reset at this address:
MENU » Measurements»> CB Meas. > (Opening
2. Closing Time Supervision
This function measures and supervises the time interval
between the generation of closing impulse and the
appearance of 52a signal from the CB. If the measured
value is evaluated greater than the set value, the Alarm
LED is activated; "CB Alarm" and "CB Close Failure"
texts are displayed on the
Note that the closing time of the CB declared by the
manufacturer must be considered when determining
Closing Time
the value.
Closing Time Supervision
To utilize
function must be set as
52a
input with assignment must be wired to a normally
open auxiliary contact of the CB. The measured closing
time for the latest operation of the CB can be viewed
and reset at this address:
MENU » Measurements » CB Meas. » (Closing
3. Open Pulse
This value is set in seconds and determines the
duration of the tripping impulse generated by the relay.
4. Close Pulse
This value is set in seconds and determines the
duration of the closing impulse generated by the relay.
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monitors and configures
Alarm Menu
.
function, the
Active
and a programmable
Alarm Menu
.
function, the
Active
and a programmable
Time).
Time).