Patent ID: 7285743
Filing Date: 2007-10-23
Classification: H01H

Abstract:
1. A vacuum interrupter comprising: dielectric encapsulation having a one-piece molded material and configured to substantially encapsulate the vacuum interrupter; a vacuum chamber molded into the dielectric encapsulation, the vacuum chamber comprising: a semi-conductive material in contact with the exposed ring and disposed on a central exterior portion of the vacuum chamber ceramic housing such that bands at end portions of the vacuum chamber ceramic housing are substantially free of the semi-conductive material; a first voltage screen connected to the first end cap and disposed outside the housing; and a second voltage screen connected to the second end cap and disposed outside the housing, said first voltage screen overlapping a first portion of the semi-conductive material, and forming a first capacitive path with the semi-conductive material, and said second voltage screen overlapping a second portion of the semi-conductive material, and forming a second capacitive path with the semi-conductive material.