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Power disconnecting device

A technology of power cutting and disconnecting devices, which is applied in the direction of circuits, electric switches, electrical components, etc., and can solve problems such as increasing space requirements

Inactive Publication Date: 2012-03-28
SCHALTBAU GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, using two separate units increases space requirements

Method used

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Examples

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Embodiment Construction

[0020] figure 1 A circuit diagram of the mains disconnecting device 1 is shown in normal operation, the switch 2 and the grounding device 3 are closed, and the consumer is thus connected to the mains.

[0021] The switch 2 comprises two switch contacts 4 , 5 . The switching contacts 4 , 5 are opened and closed by the auxiliary drive unit 6 . A manually activated positive opening device 7 is also activated by the switch contactors 4 , 5 , and in addition, the positive opening device 7 is connected to the grounding device 3 .

[0022] figure 2 The circuit diagram of the power disconnecting device 1 is shown in the state where the switch 2 is open, therefore, the electrical consumer is disconnected from the power source. If maintenance work is to be carried out, first the switch 2 is opened by the auxiliary drive unit 6 and then the positive disconnection device 7 is activated. The positive disconnection device 7 is connected with the housing of the power disconnecting devic...

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PUM

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Abstract

The invention relates to a power disconnecting device comprising a switch that can be actuated by means of at least one auxiliary drive unit and is provided with switching contacts. In order to make said power disconnecting device compact and lightweight while being able to adjust the same to different applications, the power disconnecting device comprises an additional manually operated positiveopening mechanism which acts upon the switching contacts of the switch. The inventive power disconnecting device thus uses one switching point less than conventional power disconnecting and groundingdevices and can be designed in a more compact fashion.

Description

technical field [0001] The invention relates to a power cut-off device comprising a switch actuatable by at least one auxiliary drive unit and provided with switching contacts. Background technique [0002] Usually, such a power cut-off device is used to cut off the electrical equipment from the power system for the purpose of maintenance. For example, a railway passenger car includes a power cut-off and grounding device, so that a single railway passenger car in a train set composed of multiple railway passenger cars is disconnected from the busbar of the train and grounded to achieve maintenance purposes. Once the rail car is disconnected from the power system and grounded, maintenance work can be carried out safely. [0003] To date, two separate devices have been used for this purpose. On the one hand, switches or contactors must be used to activate or deactivate the electrical power system of a railway passenger car. In addition, there are separate disconnect earthin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/22
CPCH01H3/227H01H9/226H01H9/22
Inventor 鲁道夫·冯普朗德齐斯基
Owner SCHALTBAU GMBH
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