Vacuum circuit-breaker and a method for controlling the same

A technology of vacuum switch and control system, applied in the field of control system, can solve the problems of high technical cost and the like

Inactive Publication Date: 2004-03-31
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Outside of this zone of elimination, it is technically expensive to

Method used

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  • Vacuum circuit-breaker and a method for controlling the same
  • Vacuum circuit-breaker and a method for controlling the same
  • Vacuum circuit-breaker and a method for controlling the same

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Embodiment Construction

[0032] figure 1 , 2 and 3 show the path-time diagrams of the opening movement of the vacuum switch. Recorded on the abscissa of the coordinate system is the elapsed time t during a disconnection process in which the electrical separation of the contact parts begins at the origin of the coordinates. Recorded on the vertical axis is the mutual distance s of the contact parts. figure 1 Shows a possible course of a breaking movement according to the invention. At the point in time t=0 the disconnection movement starts. The contact parts are electrically separated. The distance between the two contact parts is first continuously increased. A first contact point distance s1 of the contact portion is reached at a first point in time t1. The separation of the contact parts takes place at a constant speed until the second point in time t2. At a second point in time t2 a second contact point distance s2 is reached. After the second contact point distance s2 has been reached, the...

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Abstract

The aim of the invention is to improve the interrupting capacity of a vacuum switch, to achieve this, the contact parts (4, 5) that can be displaced in relation to each other are separated at a variable speed. Separation takes place in such a way that during a predetermined time period a predetermined distance between the contacts is not exceeded. To prevent said predetermined distance from being exceeded, a braking element is allocated to the vacuum circuit breaker.

Description

technical field [0001] The invention relates to a control system for controlling a vacuum switch, the contact point system of which comprises at least two relatively movable contact parts, which are separated from each other at a variable speed during an opening process, and between which A light arc to be eliminated is burned during this disconnection process. Background technique [0002] Such a control system is known, for example, from patent document DE 3815805 C2. The opening movement of a contact point arrangement of a vacuum switch is controlled by an eccentric drive. Here, the configuration of the mechanical actuation chain was chosen such that after a very short acceleration phase (1.3 ms) of a displaceable contact part, an open path of 1 mm of the contact part was achieved. Furthermore, it is stated that it proves to be particularly advantageous if the contact point separation speed reaches 2 m / s after 0.8 ms. This technical solution is based on the considerati...

Claims

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Application Information

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IPC IPC(8): H01H33/66H01H33/664H01H33/666
CPCH01H33/664H01H33/666H01H2009/307
Inventor 伯恩德-海科·克拉夫特卡尔·马施尔
Owner SIEMENS AG
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