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A reversible breaking device

A technology of circuit breaking device and overvoltage protection device, which is applied in the direction of circuit device, emergency protection circuit device, emergency protection circuit device for limiting overcurrent/overvoltage, etc., and can solve damage, circuit function damage, driving function danger, etc. question

Inactive Publication Date: 2017-12-15
PHOENIX CONTACT GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a subsequent current occurs now, the low impedance will be a danger to the drive function, this short circuit can lead to permanent damage or destruction of the circuit function

Method used

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  • A reversible breaking device
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  • A reversible breaking device

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 An overview of different embodiments of the invention for use with an overvoltage protection device is shown.

[0025] A device for overvoltage protection is shown here as a dotted box The reversible trip device RAT.

[0026] The reversible trip device RAT with overvoltage protection run in series. The series circuit is exemplarily shown in two conductors L 1 It is connected to the protective conductor PE.

[0027] The reversible disconnection device RAT has a first current loop SK 1 with the second current loop SK 2 of parallel circuits.

[0028] The first current loop SK1 is in Figure 2a shown in the resistor with impedance Z 1 . Second current loop SK 2 exist Figure 2b is shown with at least one conductor part made of a shape memory alloy FGL. In an embodiment of the invention each current loop SK 1 、SK 2 There may also be additional elements. The two current loops are commonly connected to the switch S 1 . Switch S 1 A parallel circui...

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Abstract

The invention relates to a reversible breaking device for an overvoltage protection device. The reversible disconnection device can be operated in series with the overvoltage protection device and has a parallel circuit with a first current loop connected in parallel with a second current loop, wherein the first current loop has an impedance resistance and the second current loop has At least one conductor portion fabricated from a shape memory alloy. Furthermore, the reversible disconnecting device has a switch, which is connected in series with the parallel circuit and the overvoltage protection device, wherein the switching action of the switch is reversible via the conductor part made of shape memory alloy, the The switching process of the conductor part is triggered by the current flow through the conductor part, so that the overvoltage protection device can be reversibly disconnected when the conductor part heats up.

Description

technical field [0001] The invention relates to a reversible circuit breaking device, which is a reversible circuit breaking device used for an overvoltage protection device. Background technique [0002] Various overvoltage protection devices are known from the prior art. [0003] A big problem in using these overvoltage protection devices is that follow-up currents often occur after a fault event. [0004] This subsequent current generally leads to high power losses in the overvoltage protection device. Intense heating occurs here, which leads to irreversible damage or destruction of the surge protector and is therefore a hazard not only to the surge protector but also to the environment. [0005] In addition to this, in order to respond quickly to an overvoltage event, the impedance of the overvoltage protection device quickly becomes small, since low impedance actually indicates a short circuit. If subsequent currents now occur, the low impedance would be a danger to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H9/02
CPCH02H9/042H02H9/041
Inventor 马丁·斯瑞伍阿克塞尔·法比奥
Owner PHOENIX CONTACT GMBH & CO KG
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