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Switches, especially circuit breakers for low voltage

A switch and voltage tap technology, applied in the parts of protection switch, protection switch, protection switch operation/release mechanism, etc., can solve the problems of expensive, easy to failure, expensive structure of rotating and moving mechanism, etc., to achieve simple structure, not easy The effect of malfunctioning, simple manipulation

Active Publication Date: 2016-12-07
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Separation is achieved here, for example, by dismantling of components, using structurally expensive and mechanically complex rotary displacement mechanisms, deflection mechanisms, etc.
This solution is not only expensive but also prone to failure

Method used

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  • Switches, especially circuit breakers for low voltage
  • Switches, especially circuit breakers for low voltage
  • Switches, especially circuit breakers for low voltage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] All drawings only schematically show the invention and its essential components. The same reference numerals here correspond to elements of the same or similar function.

[0031] exist figure 1 An electronic trip unit 1 for a low-voltage circuit breaker is depicted in . Only parts of the housing 2 are shown here. Further components of the circuit breaker are also shown less for the sake of clarity, such as further parts of the tripping unit 1 . The basic structure and function of low-voltage circuit breakers, such as the electronic triggering unit 1, are known to those skilled in the art.

[0032] If a direct voltage tap is desired for the power supply of the trigger unit 1 , the devices required for this can already be arranged in the housing 2 of the trigger unit 1 or in the switch housing. In the exemplary embodiment shown here, however, a voltage tap module 3 is provided which can be subsequently connected to the housing 2 of the triggering unit 1 . For this pu...

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PUM

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Abstract

The invention relates to a switch, in particular a low-voltage circuit breaker, with an electronic triggering unit (1). In order to achieve a particularly simple disconnection of the voltage tap when supplying the triggering unit (1) via a direct voltage tap on the internal busbar of the switch, it is recommended to use a manual switch that can be accessed from outside the housing (2) of the triggering unit (1) An actuated operating element (26) that can be linearly moved from a contact position to a disconnection position can mechanically disconnect the voltage tap, wherein the movably arranged contact device (13) can be linearly moved from the contact position with the operating element (26) to the detached position.

Description

technical field [0001] The invention relates to a switch with an electronic trip unit (ETU, Electronic Trip Unit), especially a low-voltage circuit breaker. This triggering unit monitors the current and triggers the separation of the contact pieces and thus the opening of the switch when a predetermined current limit value is exceeded. Exceeding the current limit occurs, for example, in the event of an overcurrent or a short circuit. Furthermore, the invention relates to a method for disconnecting the power supply of an electronic trigger unit within such a switch. Background technique [0002] To connect the contact devices of the switch to one or more current circuits, the switch has internal bus bars or similar current conductors. It is known to supply this electronic trigger unit via a direct voltage tap on the internal busbar of the switch. In this case it may be necessary to separate the trigger unit from the voltage tap section. This separation is necessary especi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/12
CPCH01H71/0228H01H71/123
Inventor R.舒尔茨G.泰茨
Owner SIEMENS AG
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