Improved Vacuum Surface Flashover Performance of Polymer Insulators by the use of Unique Triple Junction Designs
Abstract
Previous research and theories about surface flashover in vacuum indicate that the triple junction region plays a critical role in the insulator flashover process. To attempt to improve upon the performance of the standard 45- degree frustum insula tor, three different insulator geometries with modified triple junction regions were investigated. Two samples of each geometry, each 2 em thick, were tested to obtain the flashover voltage levels in a low 10- 5 Torr vacuum using a 1. 2- microsecond rise-time voltage pulse. Each sample was tested five times with 20 shots per test for a total of 200 shots per geometry.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1991
- Accession Number
- ADA638083
Entities
People
- D. J. Kahaian
- E. M. Honig
- Gregory R. Allen
- Jonathan D. H. Smith
- L. A. Rosocha
- R. E. Montoya
- W. F. Aaron Iii
Organizations
- Los Alamos National Laboratory