Patent ID: 7848084
Filing Date: 2010-12-07
Classification: H01H,H02G

Abstract:
1. A gas-insulated device, comprising: an earth metal container with earth potential; insulating gas sealed within the earth metal container; a high-voltage conductor disposed in the earth metal container; a shielding electrode disposed in the earth metal container and connected to the high-voltage conductor; and an insulating spacer; wherein the high-voltage conductor and the shielding electrode are insulated from the earth metal container by the insulating spacer and the insulating gas; the shielding electrode has a larger diameter than that of the high-voltage conductors; the shielding electrode is covered with relatively thick dielectric coatings; the high-voltage conductor is covered with relatively thin dielectric coatings; and each thickness of the relatively thick dielectric coatings and the relatively thin dielectric coatings is such a thickness that breakdown electric fields of the shielding electrode and the high-voltage conductor are equalized.