Patent · US Expired

Electric switch gear section

US4250535A · kind A · utility

14Cited by

2References

11Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Erich Adolph · Frankfurt am Main, DE
Unal Bayrak · Bischofsheim, DE
Robert Prohl · Nidderau, DE
Gerhard Schmidt · Graz, AT
Walter Stecker · Heusenstamm, DE

Key dates

Filing date	Apr 20, 1979
Grant date	Feb 10, 1981
Priority date	—
Expiry date	Apr 20, 1999

Classification

Technology area (CPC H)Electricity
CPC primaryH01H33/6661
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric switchgear having an understructure without insulating gas is provided with a metal encapsulation for each phase which consists of two containers filled with insulating gas. A vacuum switching tube is vertically disposed in one container. The switching tube is connected on one end to cable terminations and on the other end, via a flexible ribbon and a bolt to a disconnect switch. The disconnect switch is located in the other container which also encloses a bus bar. The movable contact of the disconnect switch can be rotated into a mating contact at the bus bar, into a grounding contact, and into an intermediate position.

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