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Device for switching direct current

A technology of direct current and reversing devices, which is applied to high-voltage/high-current switches, circuits, electric switches, etc., and can solve problems such as high cost of reversing devices

Active Publication Date: 2019-06-28
SIEMENS ENERGY GLOBAL GMBH CO & KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, the energy supply of the commutation device requires considerable expenditure

Method used

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  • Device for switching direct current
  • Device for switching direct current
  • Device for switching direct current

Examples

Experimental program
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Embodiment Construction

[0039] exist figure 1 An embodiment of a device 1 for switching a direct current I1 is shown in . This device 1 can also be referred to as a DC switch 1 . The device 1 has a first terminal 3 which is electrically connected to an operating current path 5 . The operating current path has a mechanical switch 7 , one contact of which is electrically connected to the first terminal 3 and the other contact of which is electrically connected to the second terminal 9 . The first terminal 3 is connected to a first conductor 11 of a high-voltage direct current grid, not further shown, and the second terminal 9 is connected to a second conductor 13 of the high-voltage direct current grid. In the switched-on state of the device 1, the mechanical switch 7 is closed. Although in figure 1 shows that the mechanical switch 7 is in the off state, but the following description assumes that the mechanical switch (with figure 1 The illustration in is different) Closed. In the switched-on sta...

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PUM

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Abstract

The invention relates to a device (1) for switching a direct current, having an operating current path (5) with a mechanical switch (7) and a disconnecting current path (15) connected in parallel with the operating current path (5). , which has a power electronic switch (17); and a commutation device which enables commutation of the direct current from the operating current path (5) into the off-current path (15). Here, the commutation device has a transformer (21).

Description

technical field [0001] The invention relates to a device for switching a direct current, having an operating current path, a disconnecting current path connected in parallel to the operating current path, and a commutation device, the operating current path having a mechanical switch, the disconnecting current path having a power electronic switch, The commutation device makes it possible to commutate the direct current from the operating current path into the disconnecting current path. [0002] The invention also relates to a method for breaking a direct current by means of such a device. Background technique [0003] A device of the type mentioned at the outset is known from the international patent application WO 2013 / 131582 A1. In this known arrangement, the commutation device has a series circuit of two-pole submodules, each submodule having an energy store and a power semiconductor circuit. For charging the energy store of the submodule, a charging branch is provide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/54H01H33/59
CPCH01H9/542H01H33/596H01H9/54H01H2009/544
Inventor J.多恩D.厄金H.甘巴赫
Owner SIEMENS ENERGY GLOBAL GMBH CO & KG