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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).
STS Overall Check

STS Overall Check


Check Item

Acceptance Criteria


Inside the container

  1. There is no foreign matter inside the container, and there is no sign of water immersion.
  2. The components in the MV and LV rooms are intact.
  3. The enclosure of the transformer is not deformed or damaged. The surface of the transformer is free of oil stains.


Contact surface between the container and the base

The container is in good contact with and evenly supported by the base underneath.


SF6 barometer in the ring main unit of the MV room

The pointer of the SF6 barometer is in the green area and is at a certain distance from the yellow or red area. If the pointer is close to the yellow or red area, take a photo and contact Huawei technical support.


Switch mechanical operation test

  1. Turn on and off the ACB in the LV cabinet for two times. The operation is successful.
  2. Turn on and off all MCCBs in the LV cabinet for two times. The operation is successful.
  3. Turn on and off the load switch, circuit breaker, and grounding switch in the ring main unit in sequence for two times. The operation is successful.
  4. Operate the interlocking system of the STS for two times. The operation is successful.


Inside the LV cabinet

The ground copper bar in the LV cabinet is not loose, screws are not loose or missing, and components are not loose or displaced.


Oil level gauge

The oil level displayed on the gauge in the transformer oil cabinet is normal.

Updated: 2019-12-05

Document ID: EDOC1100115701

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