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Switching device with thermal balancing equipment

A switch device and heat pipe technology, applied in electric switches, high-voltage/high-current switches, contact heating/cooling, etc., can solve problems such as heat dissipation, achieve improved temperature distribution, small overall size, and improved temperature difference compensation

Active Publication Date: 2011-01-26
HITACHI ENERGY SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since especially this zone has a greater distance from the heat sink (such as, for example, the housing), heat dissipation can be problematic

Method used

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  • Switching device with thermal balancing equipment
  • Switching device with thermal balancing equipment
  • Switching device with thermal balancing equipment

Examples

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Embodiment Construction

[0029] exist figure 1In , a simplified example of a gas insulated switchgear 1 as a switchgear or eg a medium-voltage or high-voltage substation is partially shown as a cross-sectional view. The gas insulated switchgear 1 comprises at least one circuit breaker 2 for electrically connecting or disconnecting two ends of the gas insulated switchgear 1 . Such as figure 1 The gas insulated switchgear 1 disclosed in is only used for switching the current of one phase. In running state, such as figure 1 Establish the connection as shown in .

[0030] In addition to circuit breaker 2, such as figure 1 The gas insulated switchgear 1 shown also discloses a first disconnector 3 and a second disconnector 4 . First and second isolating switches 3, 4 are provided for maintenance operations to ensure that the disconnected side is free of voltage.

[0031] Switching during normal operation of the gas insulated switchgear 1 incorporated in the system takes place by establishing an electr...

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PUM

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Abstract

The invention relates to a switching device with thermal balancing equipment, specifically to a switching device a respective substation and a thermal balancing method. According to the invention, the switching device includes a first conductor part and a second conductor part being electrically connectable. The first and second conductor parts are arranged in a volume of a housing which is filled with an insulating gas as insulating medium. A first region of said first conductor part is connected to a second region of said first conductor part by means of a heat pipe arrangement. The second region is located at a distance from the first region. The first and second region of said first conductor part are at different temperature levels when a current flow, in particular a nominal current flow, traverses the switching device along a current path during the operating state of the switching device. Thus, the heat pipe arrangement will improve the temperature distribution of the switching device.

Description

technical field [0001] The invention relates to switching devices, medium or high voltage substations and heat balancing methods, in particular for gas insulated switch gears. Background technique [0002] A switching device for switching high-intensity currents is known, for example, from document EP 1863052 A1. The two conductor parts are arranged in a common housing. The conductor parts are electrically connectable to each other. The two conductors are arranged in a common housing filled with insulating gas. Switching devices of this type are known for making an electrical connection between two conductor parts by means of a movable conductor. The problem is that due to the distribution of different cross-sectional areas, electrical resistances and current densities, an unbalanced temperature distribution occurs. Especially in the region near the so-called rated current contacts of the circuit breaker, a temperature increase will occur. Since especially this region h...

Claims

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Application Information

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IPC IPC(8): H01H9/52
CPCH01H2009/523H01H1/62H01H9/52H01H2033/6613H01H33/6606
Inventor M·库多克M·伯施R·卡尔韦特W·霍劳斯
Owner HITACHI ENERGY SWITZERLAND AG
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