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Re-ignition System using Vacuum Triggered Gap-switch for Synthetic Breaking Test  

Park Seung-Jae (Testing and Evaluation Division, Korea Electro-technology Research Institute)
Suh Yoon-Taek (Testing and Evaluation Division, Korea Electro-technology research Institute)
Kim Dae-Won (Testing and Evaluation Division, Korea Electro-technology research Institute)
Kim Maeng-Hyun (Testing and Evaluation Division, Korea Electro-technology research Institute)
Song Won-Pyo (Hyosung Corporation)
Koh Hee-Seog (Dept. of Electronic and Electrical Engineering, Kyungnam University)
Publication Information
KIEE International Transactions on Electrophysics and Applications / v.5C, no.4, 2005 , pp. 145-151 More about this Journal
Abstract
The synthetic breaking test method was developed to evaluate the breaking performance of ultra high-voltage circuit breaker and made up of two independent circuits; current source circuit and voltage source circuit. In application of this test method, it is necessary to extend the arc of the test breaker. So, the new re-ignition system using VTGS (Vacuum Triggered Gap-Switch) was constructed to improve the efficiency and reliability of this test. In this re-ignition system, VTGS operates in high vacuum state of $5{\time}10^{17}$torr and control system consists of the triggering device and the air M-G (Motor-Generator). This re-ignition system showed the operating characteristics, such as delay time ($t_d$) and jitter time ($t_j$ not exceeding 5us and 1us respectively, and had the operating voltage of $25\~150kVdc$ at the gap distance of 24mm.
Keywords
arc extension; re-ignition system; synthetic breaking test; triggering device; VTGS;
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