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Avoid misorientation of the drive lever of the circuit breaker

A technology for driving rods and circuit breakers, applied in high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve problems such as complex design and structure of switch poles, and achieve the effect of large creepage distance

Active Publication Date: 2019-09-27
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, additional parts or components placed on the pole shell are also used, such as special guide bearings, so that the design structure of the switch pole becomes more complicated.

Method used

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  • Avoid misorientation of the drive lever of the circuit breaker
  • Avoid misorientation of the drive lever of the circuit breaker
  • Avoid misorientation of the drive lever of the circuit breaker

Examples

Experimental program
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Embodiment Construction

[0031] figure 1 As an example, a switch pole 2 of a circuit breaker 1 , for example a medium voltage circuit breaker, is shown. The other two switching poles 2 of the circuit breaker 1 are not shown. The switching pole 2 has a pole housing 3 in which a vacuum switching tube 4 is accommodated. The vacuum switch tube 4 is used to switch on or off the current flowing through the circuit breaker 1 . The details of the vacuum interrupter 4 and the structure of the switching pole 2 are not described in detail. However, those skilled in the art already know that the fixed contact of the vacuum interrupter 4 is connected to the switchgear in which the circuit breaker 1 is applied via a fixed contact connection pin. The movable contact of the vacuum interrupter 4 is connected via a movable contact connection pin to a pole support 6 which is in turn electrically conductively connected to the switching device in which the circuit breaker 1 is used. The lifting motion of the movable c...

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PUM

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Abstract

The invention relates to a circuit breaker, which has a vacuum switching tube (4) arranged in a pole shell (3) and a driving rod (8) with an electrical insulation structure, the vacuum switching tube includes a fixed contact and a moving contact, and the driving rod A contact system for introducing the operating movement (13) of a switch operating mechanism (9) to a movable contact to open or close the vacuum switch tube (4). Furthermore, the invention relates to a method for avoiding misorientation of the drive lever (8) of the circuit breaker (1). In order to provide a particularly simple and economical solution for avoiding misorientation of the drive rod (8), it is proposed to connect the drive rod (8) radially between the drive rod (8) and the pole housing (3) Guiding and / or centering means (21) between them are designed to automatically orient the drive rod (8) axially within the pole housing (3).

Description

technical field [0001] The invention relates to a circuit breaker, which has a vacuum switching tube arranged in a pole casing and a driving rod of an electrically insulating structure, the vacuum switching tube includes a fixed contact and a moving contact, and the driving rod is used for switching the switch operating mechanism (Schalterantrieb ) is introduced into the movable contact to open or close the contact system of the vacuum interrupter. Furthermore, the invention relates to a method for avoiding misorientation of a drive rod of a circuit breaker. Background technique [0002] In order to open or close the contact system of the vacuum interrupter, the movable contact is moved relative to the fixed contact along the central axis of the vacuum interrupter. The switch actuating mechanism provides a corresponding actuating movement. The driving rod of electric insulation structure is used to introduce the operating movement to the movable contact connecting pin of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/66H01H33/666
CPCH01H33/66H01H33/666H01H2033/6667H01H11/04
Inventor U.苏雷什F.勒里希
Owner SIEMENS AG