Routine Maintenance - Huawei JUPITER-3000K-H1 Smart User Manual

JUPITER-(3000K, 6000K, 9000K)-H1 Smart
Transformer Station
User Manual
Figure 6-9 Status of the switches before overhaul
Procedure
Step 1 Cut off the STS loads at site 3 and turn off circuit breaker 56035 at site 3.
Step 2 Cut off the STS loads at site 2 and turn off circuit breaker 56025 at site 2.
Step 3 Turn off load switch 57011 of cabinet G3 at site 1. After the electric display of
cabinet G3 does not blink, turn on grounding switch 57017 of cabinet G3 (pull out
the mechanical interlock key to the cable room door and grounding switch 57017
of cabinet G1 at site 2). Install a sign to forbid any operation.
Step 4 One end of the cables between site 1 and site 2 is grounded and safety measures
are taken. The door of the cable room at site 1 is unlocked. The door of the cable
room at site 2 can be unlocked by inserting the mechanical interlock key.
Figure 6-10 Status of the switches during overhaul
----End

6.5 Routine Maintenance

Routine inspection and maintenance must comply with relevant regulations of the
electric utility.
The inspection, maintenance, and repair can only be performed by trained
personnel who are familiar with the equipment. The personnel must be certified
and comply with the safety regulations issued by the electric utility.
Issue 02 (2023-09-30) Copyright © Huawei Technologies Co., Ltd.
6 System Maintenance
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