华电技术 ›› 2018, Vol. 40 ›› Issue (4): 54-55.

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  • 出版日期:2018-04-25 发布日期:2018-06-21

Improvement of the gas supplementation system of GIS and disposal of the decomposition of SF6 gas

  • Online:2018-04-25 Published:2018-06-21

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Abstract:

In the operational process of gas insulated switch (GIS), there may be low voltage alarm due to the decrease of SF6 gas pressure in GIS which is caused by the aging of the sealing element and the stress test. During the supplementation of the SF6 gas, the air will enter the GIS and its pipes, and the excessive SF6 gas will be directly discharged into the atmosphere. Taking practical projects into consideration, a new gas supplementation device is designed which solves the problem above well. Finally, the treatment method on decomposition of SF6 gas is summarized.

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