Patent · US Expired

Isolating switch for metal-clad, compressed-gas insulated high-voltage switchgear

US5237137A · kind A · utility

5Cited by

2References

27Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Dieter Lorenz · Kiel, DE
Ingo Seubert · Berlin, DE

Key dates

Filing date	May 18, 1992
Grant date	Aug 17, 1993
Priority date	—
Expiry date	May 18, 2012

Classification

Technology area (CPC H)Electricity
CPC primaryH01H31/32
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In an isolating switch for metal-clad, compressed-gas insulated high-voltage switchgear, a mechanical control unit containing a rotatably supported lever arrangement. The lever arrangement locks automatically in a neutral position and retains an auxiliary contact pin until it is released by a guide surface connected to the main contact pin. A mating contact of the auxiliary contact pin is also spring-loaded and follows this auxiliary contact pin somewhat after being released, initially while maintaining the equipotential bonding.

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