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Auxiliary trigger for an electric switching device and electric switching device

A technology for disconnecting devices and electrical switches, which can be applied to electrical switches, electromagnetic release switches, switches whose voltage is lower than a predetermined value and other directions, and can solve problems such as inability to ensure user safety.

Inactive Publication Date: 2013-08-14
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this approach is problematic in this regard, because the user's safety cannot be guaranteed when installing this type of auxiliary disconnecting device.

Method used

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  • Auxiliary trigger for an electric switching device and electric switching device
  • Auxiliary trigger for an electric switching device and electric switching device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] figure 1 A partial perspective view of an electrical switching device 100 is shown. The auxiliary disconnecting device 1 is installed in this switching device 100 . The central structural component of the auxiliary disconnecting device 1 according to the invention is the storage element 10 which, in the illustrated state, is in its tensioned position 11 . The storage element 10 is connected to the disconnection element 13 via a link guide. Furthermore, the memory element 10 is controlled via the activation element 14 . When the storage element 10 in its tensioned position 11 is activated by the activation element 14 , the storage element 10 performs a movement 12 running in the clockwise direction. As a result of this measure, the disconnecting element 13 is moved by a linear movement 16 , wherein a downstream switching mechanism (not shown) of the electrical switching device 100 separates the likewise not visible switching contacts of the electrical switching device...

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PUM

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Abstract

An auxiliary tripping device is configured to interrupt a flow of current in the event of an undervoltage and / or a current pulse in a subordinate power circuit. The tripping device includes a spring element, a storage element which can be moved between a tensioned and a detensioned position, a trip element for tripping a trip mechanism of the electrical switching device and an activation element, the storage element being embodied in the tensioned position, when activated by way of the activation element, to emit the stored mechanical energy to the trip element. In an embodiment, a movably supported blocking element is provided, which is connected functionally in a first position to the storage element when the storage element is in the tensioned position, so that the storage element is held by the blocking element and in a second position the blocking element releases the storage element to perform a movement.

Description

technical field [0001] The invention relates to an auxiliary disconnecting device for an electrical switching device and an electrical switching device. Background technique [0002] Auxiliary disconnecting devices are well known for use in electrical switching devices, in particular in circuit breakers. In this case, the task of the auxiliary disconnecting device is to provide the disconnecting device of the electrical switching device with the support. This is the case in particular in circuit breakers with a low-voltage disconnection device and / or a voltage disconnection device, in which electromagnetic disconnection devices are usually used. This type of electromagnetic disconnection device is capable of opening the circuit breaker when a voltage falls below a voltage or when there is no voltage at all. Therefore, this relates to a low voltage disconnect device. Additionally or alternatively, the opening device can open the circuit breaker even in the event of a curr...

Claims

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Application Information

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IPC IPC(8): H01H71/46
CPCH01H3/3031H01H71/24H01H83/12H01H73/42
Inventor M.弗赖姆特J.伦纳
Owner SIEMENS AG