Overhauling Cables Between Stss (Cvc) - Huawei JUPITER-3000K-H1 Smart User Manual

JUPITER-(3000K, 6000K, 9000K)-H1 Smart
Transformer Station
User Manual
Figure 6-5 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 grounding switches 57017 and 50027). Install a
sign to forbid any operation.
Step 4 The main loop of the ring main unit at site 2 has been powered off and safety
measures have been taken for overhaul.
Figure 6-6 Status of the switches during overhaul
----End

6.3 Overhauling Cables Between STSs (CVC)

Issue 02 (2023-09-30)
NO TE
● For CVC ring main units, the cable overhaul procedures for CGM and DQS are the same.
● This document uses the CGM CVC ring main unit (cables between site 1 and site 2) as
an example.
Copyright © Huawei Technologies Co., Ltd.
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