27
The lamps on the ADD-ON control panel should be in following
state:
P ok (green)
= ON
P warn (yellow)
= OFF
P low (red)
= OFF
WDG (green)
= ON (fast blinking)
Alarm (red)
= OFF
Ready (red)
= OFF
If an Alarm is ON, push the RESET button on the ADD-ON
control panel.
The Key-switch on the ADD-ON control panel must be set to
the CW position.
Give a HOMING command by pressing the relative pushbutton
on the ADD-ON control panel.
The lamps on the ADD-ON control panel should now be in fol-
lowing states:
P ok (green)
= ON
P warn (yellow)
= OFF
P low (red)
= OFF
WDG (green)
= ON (fast blinking)
Alarm (red)
= OFF
Ready (red)
= ON
The switch is now ready to operate and by pressing the relative
pushbutton on the ADD-ON control panel, it will be possible to
perform Open and Close operations IN THE ABSENCE of an
AC synchronization signal.
Attempt some C/O cycles.
The correct Open / Close status is reported to the ADD-ON
control panel or to the remote monitoring utility of the substa-
tion.
Make sure that during fast actuation, DS1 is securely fixed to
its support and that there are no significant vertical oscillations
(otherwise, it means that the indications provided for position-
ing and fixing the apparatus in the compartment have not been
followed correctly).
Perform some Open/Close cycles and check
that when the key switch is released (it will
return automatically to the CCW position),
the Ready indicator is OFF and the machine
no longer operates. This test allows you to
make sure that DS1 will not operate in the
asynchronous mode when energized (as in
the maintenance mode).
Lastly, perform an Open operation.
Turn off the power supply.
Wait at least 120 sec to allow the capacitor to completely dis-
charge.
Disconnect and remove the ADD-ON control panel.
Fit the connectors wired to substation signals back into the
terminal board again.
After re-connecting the substation wiring,
check that after the power up sequence
(1 minute is required), the system returns
to the alive status but NOT in the READY
CONDITION. This test allows you to make
sure that the substation wiring does not
excite the upstream CB interlock input due
incorrect cabling.
Provided
by
Northeast
Power
Systems,
Inc.
(NEPSI)
