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Indoor ground screen reconstruction method for S band continuous wave high-power microwave system

A technology of microwave system and ground network, which is applied in the direction of connection, connection contact material, electrical components, etc., can solve the problem of device damage and other problems, and achieve the effect of avoiding damage

Inactive Publication Date: 2013-02-06
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] The purpose of this invention is to provide a method for upgrading the ground wire of the high-power microwave system that has been built, optimize the grounding method of the system, and solve the problem of damage to other components in the system caused by the overcurrent of the klystron

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  • Indoor ground screen reconstruction method for S band continuous wave high-power microwave system

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Embodiment Construction

[0023] (1) The 2.45GHz / 4MW continuous wave microwave system is built indoors. The main part consists of upper and lower floors, of which the lower floor is placed on the bottom floor of building 1 (there is no basement in the building), and the location close to the klystron is selected for grounding pile;

[0024] (2) Based on the indoor ground level, drill holes with a depth of 2.5m and a diameter of 2cm at six ground pile positions;

[0025] (3) Bury ground piles 2, wherein the ground piles 2 are copper-clad steel with a diameter of 2cm and a length of 2m;

[0026] (4) Make a C-type connector 4, wherein the material of the C-type connector 4 is copper;

[0027] (5) Weld the ground pile 2 and the C-shaped connector 4, and bury the ground pile 2 and part of the connector 4, wherein the ground pile 2 corresponds to the connector 4 one by one;

[0028] (6) Lay a three-dimensional ground net 3 on the upper and lower floors where the microwave system is located, and the materia...

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Abstract

The invention discloses an indoor ground screen reconstruction method for an S band continuous wave high-power microwave system. The method specifically includes the steps: determining pile burying positions according to indoor actual situations; drilling at the pile burying positions according to the size of piles; burying the piles; producing connectors of the piles and a ground screen; connecting the piles by the produced connectors, and deeply burying the piles and part of the connectors, wherein the piles and the connectors are in one to one correspondence; laying the ground screen according to requirements of the high-power microwave system; connecting the ground screen with the connectors exposed out of the ground; and connecting the ground screen with ground points of the microwave system. The method is applied to the discharge experiment of an EAST nuclear fusion device in spring in 2012, a grounding mode of a 2.45GHz / 4MW low-hybrid wave system is optimized, and damage of high impulse current to devices of the low-hybrid wave system is avoided during repeated klystron overcurrent.

Description

technical field [0001] The invention relates to a ground wire transformation method, in particular to an indoor ground network transformation method for an S-band continuous wave high-power microwave system. Background technique [0002] In the low clutter system of the tokamak device, when the high-power klystron is overcurrent, it is necessary to quickly shut down the high-voltage power supply to protect the klystron. In the process of quickly turning off the high voltage, the rate of change of current is very high, and for the ground wire with large inductance, the potential difference between two points on the ground wire is relatively large. The microwave system before the renovation adopts single-point grounding, and thick copper wires are used to connect each grounding point. In addition, the system is huge and the grounding wire is long. Practice has proved that the inductance of the grounding wire in this connection method is large, which may easily lead to differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R43/00H01R4/66
Inventor 冯建强单家方徐旵东王茂
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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