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Plasma circuit breaker and pulse power load

A circuit breaker and plasma technology, applied in the field of plasma circuit breaker and pulse power load, can solve the problems of increasing the operation and maintenance costs of the device, and achieve the effects of avoiding time synchronization setting, easy disassembly and installation, and easy control.

Pending Publication Date: 2022-03-15
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The working principle of the POS switch requires that the switch has accurate time synchronization with the arrival time of the main pulse of the device during the working process. In order to avoid the influence of splashing of the body 03, the switch must be cleaned regularly to prevent the short circuit of the POS switch caused by the abnormal discharge of the inner conductor 01 and the outer conductor 02. These requirements will undoubtedly increase the operation and maintenance costs of the device

Method used

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  • Plasma circuit breaker and pulse power load
  • Plasma circuit breaker and pulse power load
  • Plasma circuit breaker and pulse power load

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Such as figure 2 Shown is a plasma cut-off switch of the present invention, including a coaxial transmission line composed of a cathode inner conductor 1 and an anode outer conductor 2, and a micron-sized metal piece 3, which adopts a micron-sized metal film. The cathode inner conductor 1 in the coaxial transmission line is negative high voltage, the anode outer conductor 2 is grounded, the anode outer conductor 2 is coaxially sleeved outside the inner conductor 1, and there is a gap between the cathode inner conductor 1 and the anode outer conductor 2, the gap An annular cavity 4 is formed, and the cathode inner conductor 1 and the anode outer conductor 2 are connected through a metal piece 3 , and the metal piece 3 is located in the annular cavity 4 .

[0040] In Embodiment 1 of the present invention, the cathode inner conductor 1 and the anode outer conductor 2 are both split structures, and the joints can respectively press the outer and inner sides of the metal fi...

Embodiment 2

[0042] The difference between Embodiment 2 of the present invention and Embodiment 1 is that the micron-scale metal film in Embodiment 1 is replaced by a micron-scale metal wire, and one end of the wire is pressed against the first connecting boss 203 and the second connecting boss. 204 , the other end is pressed against the joint between the end surface of the first cathode inner conductor segment 101 and the end surface of the second cathode inner conductor segment 102 on both sides of the insertion boss 103 .

[0043] In application, the cathode inner conductor 1 is connected to the voltage output terminal of the inductive energy storage type pulse power device, and the anode outer conductor 2 is grounded through the anode large plate. Both the cathode inner conductor 1 and the anode outer conductor 2 are of a split structure, which facilitates the installation of the plasma disconnect switch. In addition, in other embodiments of the present invention, it may also be an int...

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Abstract

The invention belongs to a circuit breaker switch, and aims to solve the technical problems that an existing POS switch needs to be accurately synchronized with the main pulse arrival time of a device in the working process, the plasma density needs to be adjusted according to a load waveform, frequent cleaning needs to be carried out, and the operation and maintenance cost is increased. The plasma circuit breaker comprises a negative high-voltage cathode inner conductor and a grounded anode outer conductor, the anode outer conductor is coaxially sleeved outside the inner conductor, a gap is reserved between the cathode inner conductor and the anode outer conductor to form an annular cavity, and the plasma circuit breaker is characterized by further comprising a micron-sized metal piece, the cathode inner conductor and the anode outer conductor are connected through a metal piece, and the metal piece is located in the annular cavity.

Description

technical field [0001] The invention belongs to a circuit breaker, in particular to a plasma circuit breaker and a pulse power load. Background technique [0002] As one of the key components of the inductive energy storage type pulse power device, the plasma opening switch (Plasma Opening Switch, referred to as POS) has the characteristics of large on-current, adjustable on-time, high off-circuit voltage, and fast speed. [0003] A typical POS structure is figure 1 In the coaxial structure shown, the inner conductor 01 is the cathode, and the outer conductor 02 is the anode. The specific working process is: the discharge circuit composed of capacitive switches drives the plasma gun 04 to spray plasma 03 into the gap between the cathode and the anode. , when the plasma 03 in the gap reaches a certain density (generally 10 12 cm -3 -10 16 cm -3 ), the main pulse of the device is injected into the POS switch. Due to the good conductivity of the plasma, the current complet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327H05H1/34
CPCG01R31/327H05H1/34
Inventor 孙江张金海胡杨蔡丹赵博文罗维熙孙铁平孙剑锋呼义翔
Owner NORTHWEST INST OF NUCLEAR TECH