Shutdown And Power-Off - Huawei JUPITER-3000K-H1 Smart User Manual

JUPITER-(3000K, 6000K, 9000K)-H1 Smart
Transformer Station
User Manual
● Maintain the equipment with sufficient knowledge of this document and using
proper tools and testing equipment.
● Place temporary warning signs or install fences to prevent unauthorized access
to the maintenance site.
● If the equipment is faulty, contact your vendor.
● The equipment can be powered on only after all faults are rectified. Failing to
do so may escalate faults or damage the equipment.
● Do not open STS doors for maintenance in sand and dust storms.
● In areas such as deserts, install 18 cm x 25 cm dustproof bags for dust-sensitive
devices such as smoke sensors and T/H sensors with climbing devices and seal
the bags with seal tape before maintenance. After the maintenance is
complete, remove the dustproof bags and close the cabin door.
● Upon completion of each maintenance, you are advised to use cordless vacuum
cleaners to remove sand, dust, catkins, and insects inside the equipment. Once
the cleaning is complete, close the cabin doors.

6.2 Shutdown and Power-Off

To power off the equipment system, perform the following operations:
1.
2.
3.
4.
5.
6.
Issue 02 (2023-09-30)
NO TICE
Follow the relevant power operation procedure. Wear high-voltage insulation
gloves, insulation shoes, and safety helmets, and use operation levers.
Turn off AC input switches in the LV cabinet.
After checking that all the AC input switches in the LV cabinet are turned off,
turn off the air circuit breaker and the PT loop switch.
After confirming that the air circuit breaker is turned off, turn off the circuit
breaker of cabinet V of the ring main unit. Then turn off the disconnector.
If the power indicator indicates no power supply, ensure that cabinet V is
grounded according to operation instructions on the panel of the ring main
unit.
To facilitate the power-off maintenance of the STS, turn off the load switch of
the upstream cabinet G3. Ensure that the power supply is off, turn off the
load switch of cabinet G1, turn on the ground switches of cabinets G3 and G1,
and then check and repair the ring main unit. If the MV side is a DVC/DCV
cabinet, to facilitate the power-off maintenance of the STS, turn off the load
switch of the upstream cabinet G3. Ensure that the power supply is off, turn
on the ground switch of cabinet G3, and then check and repair the ring main
unit.
Copyright © Huawei Technologies Co., Ltd.
6 System Maintenance
97