Patent · US Expired

Switch drive

US4654492A · kind A · utility

166Cited by

3References

7Claims

0Family size

Assignee

BBC Aktiengesellschaft, Brown, Boveri & Cie · CH

Inventors

Gerhard Koerner · Schriesheim, DE
Walter Hahn · Frankfurt, DE
Horst Plettner · Hanau, DE

Key dates

Filing date	Apr 12, 1985
Grant date	Mar 31, 1987
Priority date	—
Expiry date	Apr 12, 2005

Classification

Technology area (CPC H)Electricity
CPC primaryH01H3/22
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A switch drive assembly includes a switch having a contact and a control shaft for actuating the contact and switching substantially currentlessly, and a drive having a drive motor, a flywheel accumulator connected to the drive motor for receiving a change from the drive motor immediately prior to a switching process, the flywheel accumulator being coupled to the control shaft for discharging during a switching process and executing a previously initiated switching process, the drive motor acting as a generator for generation of a self-sufficient voltage supply during discharge of the flywheel accumulator.

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