Patent · US Expired

High-voltage power switch with a cooling device for cooling the quenching gas

US5717183A · kind A · utility

9Cited by

8References

5Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Volker Lehmann · Hersbruck, DE
Heiner Marin · Berlin, DE
Friedrich Lobner · Berlin, DE

Key dates

Filing date	May 24, 1996
Grant date	Feb 10, 1998
Priority date	—
Expiry date	May 24, 2016

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2033/888
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric high-voltage power switch has two contacts and at least one gas outlet for quenching gas heated by the arc generated between the contacts. A cooling device is provided for cooling the quenching gas. The cooling device is formed of a metal body with through-holes arranged in the flow path of the quenching gas. An insulating component impermeable to the quenching gas, is fitted in the gas outlet in front of the metal body viewed from the contacts and consists of a material (PTFE) releasing a quenching gas at high temperatures. The insulating component is sufficiently distanced from the metal body for the quenching gas to be able to pass through the through-holes substantially over the entire surface of the metal body.

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