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STS-(3000K, 6000K)-H1 Smart Transformer Station Installation Guide
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Connecting an AC Output Power Cable

Connecting an AC Output Power Cable

  • The door of the power cable room of the ring main unit is interlocked with the grounding switch. The door can be opened only when the grounding switch is turned on.
  • When connecting the incoming cables, ensure that the grounding switch of the upstream outgoing cable cabinet is turned on. After connecting cables, ensure that the grounding switch of cabinet G1 in the ring main unit of the STS is turned off.
  • Before turning on the grounding switch of cabinet G1, turn off the switch in the upstream cabinet G3.
  • If multiple STSs are cascaded, cabinet G3 of the last STS should be installed with insulation plugs by the Engineering, Procurement, Construction (EPC) party.
  • Route cables to corresponding positions according to the design and label the cables.

Procedure

  1. Cut a cable inlet according to the cross-sectional area of the cable.
  2. Prepare terminals and secure them by referring to the installation guide to the split-type shielded cable connector.

    Figure 7-12 Connecting an AC output power cable (a single STS)
    Figure 7-13 Connecting AC output power cables (multiple STSs cascaded)

    The cable room of the load switch cabinet supports the access of two rows of cables. The actual situation prevails.

    Figure 7-14 Access of two rows of cables

  3. Seal the bottom cable hole using firestop putty, clear the cable room sundries, and close the door.
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Updated: 2019-12-05

Document ID: EDOC1100115701

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