真空觸發開關(Triggered Vacuum Switch,TVS)又稱為真空觸發間隙(Triggered VacuumGap),是將真空開關技術[1,2]和三極火花隙技術[3-5]相結合而發展起來的一種新型大功率開關器件,其特點是利用真空作為主觸頭間的絕緣介質和滅弧介質,並采用特殊設計的觸發極來控制開關進行

The switch is the key component and the main technical obstruction of the pulsed power system(PPS),which demands the right and reliable action of the sequential energy releasing.Lately,the triggered vacuum switch(TVS) is considered as the most compelling switch in pulsed power system.A novel design for controlling the Field-breakdown triggered vacuum switch is proposed in this paper.A typical triggered pulse generating circuit is put forward herein to get the high voltage triggered pulse which can supply the needed power to trigger the TVS's closing.However,this triggered pulse has such shortcomings as large delay time and scatters.A high voltage steepened trigger pulse can solve the problem.For the sake of obtaining a high voltage steepened trigger pulse,the three-electrode-gap is used in the main high voltage pulse generating circuit to ensure the accuracy of switching time of triggered vacuum switch within 2 μs.The series of fiber optic transmitters and receivers are used in the trigger signal generating circuit to improve the ability to inhibit interference.Mis-triggering because of mutual interferences among stages is solved in the experiments.Fiber optic is used between transmitters and receivers to insolate the low voltage control unit from the high voltage triggering units.The triggered power of the triggered vacuum switch's controller can be adjusted flexibly by changing the capacitance and its charged voltage.In order to obtain the Field-breakdown triggered vacuum switch's delay characteristics,the experimental circuit of TVS is set up and the experiments are launched.The experimental research work implies that the delay time and its scatter obviously decrease with the increase of triggered power.Particularly,the delay time can be 15.57 μs and its scatter can be 1.358 μs when the provided triggered power is 1.6 J.This work can be used to instruct the design of the triggered vacuum switch with high speed and precision performance.

新手教學

批發市場僅提供代購諮詢服務，商品內容為廠商自行維護，若有發現不實、不合適或不正確內容，再請告知我們，查實即會請廠商修改或立即下架，謝謝。