Current interrupter system

Patent metadata

Field	Value
Publication number	US-11764011-B2
Application number	US-202017599677-A
Country	US
Kind code	B2
Filing date	Feb 17, 2020
Priority date	Mar 29, 2019
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

A current interrupter system has a series arrangement of at least two interrupter units. At least one of the interrupter units is a vacuum tube, and the at least two interrupter units are mechanically connected to a drive system. The drive system has a drive assembly and a drive shaft. The drive shaft is a crank shaft equipped with at least two cranks. The at least two cranks have two crank strokes of different magnitudes.

First claim

The invention claimed is:

1. A current interrupter system, comprising:
a series arrangement of at least two interrupter units;
at least one of said interrupter units being a vacuum tube;
a drive system mechanically connected to said at least two interrupter units, said drive system including a drive assembly and a drive shaft;
said drive shaft being a crank shaft with at least two cranks having two crank strokes of mutually different magnitudes.

2. The current interrupter system according to claim 1 , wherein said crank shaft is configured to carry out a unidirectional rotational movement during an opening operation of said interrupter units.

3. The current interrupter system according to claim 2 , wherein said crank shaft is configured for a unidirectional rotational movement of between 170° and 190° during the opening operation of the interrupter units.

4. The current interrupter system according to claim 2 , wherein said crank shaft is configured for a unidirectional rotational movement of substantially 180° during the opening of the interrupter units.

5. The current interrupter system according to claim 1 , wherein said crank shaft is configured to carry out a unidirectional rotational movement of between 350° and 360°+10° during an opening operation and a following closing operation of said interrupter units.

6. The current interrupter system according to claim 1 , wherein said at least two interrupter units are connected electrically in series with one another and mechanically connected to a respective crank having different crank strokes, and wherein said at least two interrupter units have different rated voltages.

7. The current interrupter system according to claim 6 , wherein three identical pairs of said interrupter units that are connected in series are mechanically connected to said crank shaft.

8. The current interrupter system according to claim 6 , further comprising a crank pin forming a mechanical connection between said crank shaft and a respective said interrupter unit, said crank pin being arranged between two cranks at a distance from an axis of rotation of said crank shaft, and a plain bearing surrounding said crank pin and being connected to a push rod.

9. The current interrupter system according to claim 8 , wherein said push rod is mechanically connected to a contact bolt.

10. The current interrupter system according to claim 9 , which comprises a further plain bearing forming a mechanical connection between said push rod and said contact bolt.

11. The current interrupter system according to claim 1 , wherein a radial orientation of the crank stroke of two mutually adjacent cranks along said crank shaft is offset by 180°.

Assignees

• Siemens Energy Global Gmbh & Co Kg

Inventors

• Kosse Sylvio
• Nikolic Paul Gregor

Classifications

• H01H3/30 Primary

  using spring motor · CPC title

• H01H33/666 Primary

  Operating arrangements · CPC title

• H01H33/42

  Driving mechanisms · CPC title

• H01H3/46

  using rod or lever linkage, e.g. toggle · CPC title