Effect of grounded coating on insulation performance for solid insulation ring main unit

  • Shilei Guan
  • , Xuefeng Bai
  • , Zhixin Bai
  • , Baikui Li
  • , Pei Liu
  • , Jing Yan
  • , Zhiyuan Liu
  • , Yingsan Geng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Manufacturers have paid more and more attention to solid insulation Ring Main Unit (RMU). The usage of RMU is needed more and also the requirement to its performance is higher. In this paper, a 12kV solid insulation RMU has been taken as a research object. Realistic 3-D simulation models were built in Solidworks software. A simplified model of a solid insulation RMS was setup with or without shielding and Grounded coating of outer surface of the solid insulation RMU. The electric field distribution has been calculated using Ansoft Maxwell 3D. The influence of the grounded coating on the overall insulation performance was studied by analyzing the internal electric field of the vacuum circuit breaker, the busbar chamber and the circuit breaker chamber. When the surface of the solid insulating material is grounded, the electric field intensity in the air gap between the embedded pole of circuit breaker and the metal material is too large. The comparison results are available for reference to optimization design of insulating structure for a 12kV solid insulation RMU.

Original languageEnglish
Title of host publicationICEPE-ST 2017 - 4th International Conference on Electric Power Equipment- Switching Technology
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages740-743
Number of pages4
ISBN (Electronic)9781538616512
DOIs
StatePublished - 12 Dec 2017
Event4th International Conference on Electric Power Equipment- Switching Technology, ICEPE-ST 2017 - Xi'an, China
Duration: 22 Oct 201725 Oct 2017

Publication series

NameICEPE-ST 2017 - 4th International Conference on Electric Power Equipment- Switching Technology
Volume2017-December

Conference

Conference4th International Conference on Electric Power Equipment- Switching Technology, ICEPE-ST 2017
Country/TerritoryChina
CityXi'an
Period22/10/1725/10/17

Keywords

  • Electric field
  • Epoxy resin
  • Grounded coating
  • Ring Main Unit
  • solid insulation

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