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Study on Safety of High Voltage GIS Busbars Shell

[+] Author Affiliations
Shuxia Yuan, Sanping Zhou, Yuguang Fan

Xi’an Shiyou University, Xi’an, China

Paper No. PVP2017-66249, pp. V01BT01A048; 11 pages
doi:10.1115/PVP2017-66249
From:
  • ASME 2017 Pressure Vessels and Piping Conference
  • Volume 1B: Codes and Standards
  • Waikoloa, Hawaii, USA, July 16–20, 2017
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5791-5
  • Copyright © 2017 by ASME

abstract

GIS, Gas Isolation Switchgears, is the closed combination of electrical appliances, which is filled with SF6 gas as a dielectric and insulation medium. The gas pressure is up to 0.5 MPa, so the GIS busbars shells are pressure vessels, which should have high reliability. Research about horizontal busbars shell showed that crack may appeared on the connection between the saddle support and the shell, then the gas leakage taken place. In this paper, the GIS busbars system in a certain substation is studied, the reaction force of the supports under the action of interior pressure, gravity, and temperature are calculated used as Autopipe. Then the stress distributions of the busbars shells are analyzed according to the supporting reaction force. At last, the safety of high voltage GIS busbars shell was analyzed.

Copyright © 2017 by ASME
Topics: Safety , Shells

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