Abstract
The insulation structure of oil-immersed paper (OIP) capacitive bushing is usually designed without considering the effect of temperature gradient on material properties during the bushing operating. In this paper, partial discharge inception voltage (PDIV) test, and permittivity test were carried out on the OIP at various temperatures. An electricity-fluid-temperature multi-physics field simulation model was built and analyzed by the finite element analysis (FEA) based on the experimental data. The results show that the electric properties of OIP are changed obviously under the operating conditions. The voltage of each layer is basically unchanged, but the PDIV decreased by 14.8%. In addition, an optimization design of OIP capacitive bushing based on the temperature gradient was proposed, which realized the uniform axial electric field distribution of the bushing during its operation. This study offers a new perspective on the design of OIP capacitive bushing.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
