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Gas-insulated medium-voltage or high-voltage switchgear with knife contact holder

A gas-insulated, high-voltage switch technology, applied in high-voltage/high-current switches, air switch parts, switchgear settings, etc.

Pending Publication Date: 2022-03-01
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This means that there is an increasing challenge in the development of the switchgear, since the necessary insulation gaps increase with voltage and the forces acting in the switchgear increase with current due to the current's magnetic field

Method used

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  • Gas-insulated medium-voltage or high-voltage switchgear with knife contact holder
  • Gas-insulated medium-voltage or high-voltage switchgear with knife contact holder
  • Gas-insulated medium-voltage or high-voltage switchgear with knife contact holder

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Experimental program
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Embodiment Construction

[0022] figure 1 and figure 2 A perspective side view of an embodiment of the invention is shown, wherein figure 1 and figure 2 The switchgear 1 according to the invention is shown from the opposite direction. image 3 shows a perspective side view of the disconnector of an embodiment of the invention, and thus shows in an enlarged manner also the figure 1 and figure 2 The functional unit shown in. All three diagrams are described together below.

[0023] For simplicity, illustrations 1 and 2 show only a section of a gas-insulated medium-voltage or high-voltage device 1 , which mainly comprises a gas-insulated chamber 2 filled with an insulating gas during operation and a drive unit. In the illustration, a depth direction 3 is shown, which corresponds to the viewing direction of the switching device 1 for a person standing in front of the operating panel 16 of the switching device 1 . The central component of the circuit breaker of the switchgear is the vacuum switchi...

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PUM

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Abstract

The invention relates to a gas-insulated medium-or high-voltage switching device (1) having a switching unit which is arranged in a gas-insulated chamber (2), comprising a circuit breaker and a disconnector which is arranged above the circuit breaker. The circuit breaker has a plurality of vacuum switching tubes (4) arranged in a depth direction (3) and oriented vertically. The disconnector has force transmitters (5) arranged in a depth direction (3) and a number of rotatable blade contacts (7) corresponding to a plurality of vacuum switching tubes (4), which are arranged on a blade contact carrier (6). In this case, the force transmitter (5) is designed to rotate the blade contacts (7) between an operating position, in which each of the blade contacts (7) contacts a respective operating contact (8), and a grounding position, in which each of the blade contacts contacts a respective grounding contact (9), via an open position located between the operating position and the grounding position, in which each of the blade contacts (7) contacts a respective operating contact (8). In the open position, the knife type contact (7) is electrically disconnected. According to the invention, the blade contact carrier (6) is made of plastic.

Description

technical field [0001] The invention relates to a gas-insulated medium-voltage or high-voltage switchgear (hereinafter also simply referred to as "switchgear"). Background technique [0002] Gas-insulated switchgear is used in the medium voltage (1 kV to 52 kV) and high voltage (above 52 kV) ranges in order to achieve a high power density in a small installation space. Basically, it is desirable to be able to switch as much power as possible with a switching device, which is why the voltage and current to be switched should be increased within technical possibilities. For example, sulfur hexafluoride (SF6) or alternative gases with similar properties due to its large greenhouse gas effect are used as insulating gases. [0003] Standardized structural dimensions for gas-insulated switchgear have been established, so that new switchgear for higher voltages and currents must have the same structural dimensions as conventional switchgear, because usually existing premises for o...

Claims

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Application Information

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IPC IPC(8): H01H31/00H01H31/02H02B13/035H02B13/075
CPCH01H31/003H01H31/026H01H31/023H02B13/035H02B13/075H02B13/0352H01H33/121
Inventor J.贝尔S.沃尔夫J.尼切
Owner SIEMENS AG