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A device suitable for triggering gaps

A technology for triggering gaps and triggers, which is applied to circuits dedicated to spark gaps, spark gaps, spark gap components, etc. It can solve problems such as difficult conduction of the main gap, affecting the electrical performance of the trigger gap, and insufficient pressure in the injection chamber. , to achieve the effect of improving the overall mechanical strength, improving the electrode flow performance, and improving the mechanical strength of the electrode

Active Publication Date: 2019-10-15
CHINA ELECTRIC POWER RES INST +1
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  • Description
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AI Technical Summary

Problems solved by technology

The structure of the electrode and its flow-induced magnetic field are the key factors affecting the arc motion characteristics. In SF 6 During the development of the trigger gap, the spiral groove contact structure of the vacuum circuit breaker is often applied directly, which may easily lead to insufficient pressure in the injection chamber, insufficient plasma jet injection height, difficult conduction of the main gap, and long stagnation time of the arc after arcing, which will lead to electrode failure. The central platform is seriously ablated. When the arc moves to the edge of the electrode, it will stagnate again, and there will be obvious melting marks on the edge of the electrode. The above phenomenon will undoubtedly affect the SF 6 Improvement of trigger gap electrical performance

Method used

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  • A device suitable for triggering gaps
  • A device suitable for triggering gaps
  • A device suitable for triggering gaps

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0028] according to figure 1 As shown, the integral device of the injection trigger gap includes: a trigger gap body 101 , a trigger 102 and a control unit 103 .

[0029] The control unit 103 receives the control signal sent from the outside, converts the control signal into an optical signal, transmits it through an optical fiber, and outputs it to the trigger 102 , and controls the trigger 102 to trigger the conduction of the trigger gap body 101 .

[0030] The trigger 102 includes an isolation transformer, a pre-stage trigger and a post-stage trigger. The isolation transformer supplies power to the front-stage trigger and the rear-stage trigger respectively. After the front-stage trigger receives the trigger signal sent by the control unit 101, it outputs a pulse signal to discharge the rear-stage trigger, generates a high-voltage pulse sign...

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Abstract

Disclosed are a device applicable to a trigger gap, comprising a trigger gap body (101), a trigger (102) and a control unit (103). The trigger gap body (101) comprises a high-voltage electrode (1), a ground electrode (2), an edge-overlapped spiral structure and an electrode attached with a stainless steel back plate, wherein the ground electrode is provided with a crater type ground electrode circular truncated cone structure, and the high-voltage electrode is provided with a boss structure in a smooth transition manner.

Description

technical field [0001] The invention relates to a device for triggering gaps, in particular to a large-capacity SF under medium and high pressure levels. 6 Device that triggers the gap. Background technique [0002] In the field of pulse power, with the development of high-power trigger gap technology, the trigger conduction time can be shortened to tens of nanoseconds, the flow capacity can reach thousands of coulombs, and it has a high withstand voltage level. The action time of the trigger gap is much lower than that of conventional switches. It has strong controllability and high technical performance. It is easy to form a fast closing switch. It can be used as a core device to form a special application and solve many long-standing technical problems in the power grid. High power trigger gap is divided into vacuum and SF 6 There are two types of trigger gaps, of which SF 6 Higher voltage levels are available for trigger gaps. [0003] SF 6 The trigger gap mainly re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01T1/22H01T14/00H01T15/00
Inventor 李志兵张鹏飞颜湘莲刘北阳王浩何洁徐晓东
Owner CHINA ELECTRIC POWER RES INST
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