InsulGard System Installation and Start Up Guideline
27
4. Press
Set
key on the monitor face plate to enter the setup mode. Password prompt should appear on the display
as shown:
Enter Setup
Password: ---0
Enter the password
5421
by using
“←”
and
“→”
to move to different digits and
“↑”
and
“↓” t
o change the values
and then press
Enter
key. Wait about 20 seconds for the display to change from dashed lines to “Set date” before
pressing any other key. If the wrong password is entered the dashed lines remain on the display until another key is
pressed. When InsulGard is in
“Set”
mode, Set LED will be on.
5. Using
“←”
and
“→”
keys scroll to
Calibrate Current
and Press
Enter
.
Calibrate
Current
Press
“Enter”
6. Use any arrow key to switch from
Manual Input
to
Auto Calculate
Coefficient.
Enter % of Rated
Current 000.0 %
Enter load current percentage using horizontal arrows to switch between digits and vertical arrows to change the
value. Press
Enter
. Current coefficient will be calculated. One can verify the coefficient by going to
Manual Input
menu.
7. Press
Esc
to save changes and to leave Set mode. Monitor will display load current
“Current xx.x%”
close to
percentage entered.
8. Note: If equipment is not running Current Coefficient
CK
can be calculated if Rated Current
I
rated
and the
metering CT rating
I
ct
are known. Assumption made that metering CT ratio is always
Ict : 5
. If rated current was
entered in the settings, calculate Current Coefficient and enter it manually as:
CK= 2.2*I
ct
.
If rated current was not changed in the settings from default
I
rated
=1
, calculate Current Coefficient and enter it
manually as:
CK= 2.2*(I
ct
/I
rated
)
If only one of
I
rated
and
I
ct
is known use either one for approximate coefficient:
CK= 2.2*I
(
I
entered in the setting) or
CK= 2.2
(for default
I=1
in settings).
If
I
rated
used, readings will be lower than actual. If
I
ct
used, readings, will be higher than actual.
CK
can be
corrected later by multiplying by coefficient equal to the actual relative load(%) divided by InsulGard readings.
9. FlexCore primary CT with the Load Current sensor might be installed over 1 feeder of several feeders per
phase. There will be no valid current measurement in this case, but current monitoring will be still sufficient for
PD diagnostics purpose. Multiply
CK
coefficient by number of feeders in such case.
10. After exiting setting mode in InsulGard go to Communications Tab in the software and Get Settings from Device
to synchronize settings in the monitor and software. Click
Update Data base with Device settings
when
CK
discrepancy will be displayed.
11.
In InsulGard “Unit Settings” Tab save new configuration by clicking “Back Up Settings” button.
Note: Older versions of InsulGard hardware and firmware may have deviation from the described
above procedure
– consult to the Manuals that came with that device or consult to EE PD.
