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JUPITER-(3000K, 6000K, 9000K)-H1 Smart
Transformer Station
User Manual
4.5 Powering On the LV Loop
4.5.1 (Optional) Unlocking Air Circuit Breakers
The STS interlock is optional. The internal interlocking diagram of the STS is as
follows.
Step 1 Take out keys K3&K5 from the disconnector (or load switch) of cabinet G2 in the
ring main unit. Insert key K5 into hole K5 of the key distribution box Exchange Box
1 in the LV room and rotate the key to unlock.
Step 2 Take out keys K6&K8 from Exchange Box 1. Insert key K8 into the interlocking hole
of the ACB in LV PANEL A and rotate the key to unlock.
Issue 02 (2023-09-30)
Copyright © Huawei Technologies Co., Ltd.
4 Power-On
78
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