Patent · US Active

Ceramic insulator for vacuum interrupters

US10840044B2 · kind B2 · utility

0Cited by

8References

17Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Frank Graskowski · Wandlitz, DE
Angelika Hartmann · Weisendorf, DE
Sylvio Kosse · Erlangen, DE
Andreas Lawall · Berlin, DE

Key dates

Filing date	Jul 13, 2017
Grant date	Nov 17, 2020
Priority date	—
Expiry date	Jul 13, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2033/66292
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A ceramic insulator for vacuum interrupters extends along a longitudinal extent and forms a cavity in said longitudinal extent. The cavity has a first opening on a first end of the longitudinal extent and a second opening on a second end of the longitudinal extent. The openings are designed so that they can be sealed in a gas-tight manner using appropriate connections. The sealed first opening is designed to guide at least one fixed contact into the cavity, and the sealed second opening is designed to guide at least one moving contact into the cavity. The ceramic insulator has, on an inner face of the cavity, one or multiple electrically conductive discharge path interrupters extending perpendicularly to the longitudinal extent of the ceramic insulator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.