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Installation with circuit breaker arc extinguishing unit

一种断路器、灭弧的技术，应用在高压空气断路器、电路、电气元件等方向，能够解决增大开关气体通道流动阻力、妨碍快速排出大的开关气体等问题

Active Publication Date: 2016-05-11
SIEMENS ENERGY GLOBAL GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this results in a good swirl flow of the switching gas, it also increases the flow resistance of the switching gas channel
[0004] High flow resistance prevents rapid discharge of large switching gas volumes

Method used

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  • Installation with circuit breaker arc extinguishing unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] This figure shows a partially cutaway device with a circuit breaker quenching unit, which is installed inside the closed housing 1 . The closed housing 1 is here a cast metal part, which is connected to ground potential. The closed casing 1 is filled with an electrically insulating fluid, especially an electrically insulating gas, such as sulfur hexafluoride, nitrogen and mixtures of these gases. The electrically insulating fluid exerts a positive pressure here. Based on the hermetically closed design of the closed casing 1 , it is only difficult for the electrically insulating fluid under positive pressure to volatilize occasionally.

[0028] The closed housing 1 extends essentially in a tubular manner coaxially to the longitudinal axis 2 , wherein the closed housing 1 is closed at the front side by a cap closure. The longitudinal axis 2 defines the axial direction. Furthermore, the closed housing 1 has connecting flanges, for which an exemplary connecting flange 3 ...

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PUM

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Abstract

The invention relates to a device with a circuit breaker arc extinguishing unit having first and second arc contacts (4, 5). A contact gap (10) is provided between the two arc contacts (4, 5). A switching gas channel opens into the contact space ( 10 ), which leads the switching gas to a switching gas outflow ( 24 ) in the arc extinguishing unit of the circuit breaker. The switching gas channel includes first and second pipe sections (12, 13) which at least partially overlap each other and each have an unloading hole on their outer surface. The relief holes that penetrate freely in the first and second pipe sections (12, 13) are arranged axially offset from each other.

Description

technical field [0001] The invention relates to a device with a circuit breaker arc extinguishing unit (Leistungsschalterunterbrechereinheit), the circuit breaker arc extinguishing unit has a contact gap arranged between a first and a second arc contact, and a one-sided access to the contact gap and The other side leads to the switching gas channel of the switching gas outlet of the circuit breaker arc extinguishing unit, the switching gas channel is at least partially bounded by the first and second pipe sections, and the first and second pipe sections are mutually axially overlapped in the overlapping area. overlapping, and respectively have unloading holes on their outer surfaces. Background technique [0002] Such a device is known, for example, from the German utility model document DE1889068. The circuit breaker quenching unit is referred to there as a tubular quenching chamber, which has contact gaps between the arcing contacts. In order to allow the switching gas g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/58H01H33/70
CPCH01H33/58H01H33/7015
Inventor R-M.瑟纳特V.莱曼A.诺瓦科夫斯基
Owner SIEMENS ENERGY GLOBAL GMBH & CO KG