Patent · US Expired

Metal encapsulated, pressurized gas insulated high voltage switching apparatus

US4484047A · kind A · utility

8Cited by

4References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Willi Olsen · Berlin, DE
Sreenivasan S. Kumar · Berlin, DE

Key dates

Filing date	Apr 9, 1982
Grant date	Nov 20, 1984
Priority date	—
Expiry date	Apr 9, 2002

Classification

Technology area (CPC H)Electricity
CPC primaryH01H33/245
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a metal encapsulated, pressurized gas insulated high voltage disconnect switch operating at voltages above 245 kV, weak arcs drawn during the switching operation are prevented from wandering off, so that they cannot commutate to the encapsulation and produce an arc to ground, by an electric field in the switching gap controlled by moving a field electrode jointly with the switching rod, with the motion cycles of the switching rod and the field electrode controlled during the closing and opening process in a forced manner by a lever linkage provided with steering rods for the switching rod and the field electrode.

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