A gas-insulated mega-ampere-class linear transformer driver with pluggable bricks

被引：18

作者：

Jiang, Xiaofeng ^{[1
,2
]}

Sun, Fengju ^{[2
]}

Wang, Zhiguo ^{[1
,2
]}

Jiang, Hongyu ^{[2
]}

Qiu, Aici ^{[1
]}

Li, Xingwen ^{[1
]}

Wu, Jian ^{[1
]}

Chen, Li ^{[1
]}

Li, Penghui ^{[1
]}

Jia, Shenli ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China

[2] Northwest Inst Nucl Technol, State Key Lab Intense Pulsed Radiat Simulat & Eff, Xian 710024, Peoples R China

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2020年 / 91卷 / 12期

基金：

中国国家自然科学基金;

关键词：

CIRCUIT SIMULATION; PULSED-POWER; DESIGN;

D O I：

10.1063/5.0028451

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This paper presents the design and test of a gas-insulated linear transformer driver (LTD) cavity aimed at the Z-pinch experimental device CZ-34. The LTD cavity has a diameter of 2290 mm and a height of 346 mm. It consists of 23 main bricks and 1 trigger brick. Each main brick is comprised of two 100 nF capacitors connected electrically in series with a field-distortion gas switch. The trigger brick is comprised of two 50 nF capacitors connected in series with a compact multi-gap gas switch. All bricks are placed in the cavity filled with compressed SF6 and are pluggable like drawers. The trigger pulse generated by the trigger brick passes through an azimuthal transmission line to the trigger ring and makes the main bricks discharge synchronously. The LTD cavity can deliver similar to 1 MA current pulse with a rise time of 115 ns to 0.08 Omega liquid resistance load when the charging voltage is +/- 100 kV, which is in good agreement with the circuit simulation results. Experimental results demonstrate the successful application of using gas insulation and pluggable bricks. The technical feasibility of the charging configuration, triggering method, and isolation resistors is verified. There is little difference in output performance as return-current rods replaced the outside metal cylinder, which provides a new path for the design of LTD cavities in series.

引用

页数：9

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