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http://dx.doi.org/10.5762/KAIS.2016.17.6.400

A Study on the Function Improvement of the Serge Protection Device for Radar Control Unit  

Jo, Hee-Jin (The 1st Team of Deagu Center, Defense Agency for Technology and Quality)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.6, 2016 , pp. 400-407 More about this Journal
Abstract
The purpose of this study is to propose a useful method of solving the problem of thermal stability in surge protection devices (SPDs). First of all, the existence of the problem in the developed SPDs was confirmed by experiment. After analyzing the problem, a useful method of solving it is proposed and implemented. An experiment is performed to verify the performance of the implemented device. The results of this study are as follows; it is revealed that the problem of the thermal stability results from the varistor, one of the components in the SPD. A varistor with a built-in thermal fuse is applied to the SPD for the purpose of solving the problem. The experimental results confirmed that the thermal stability was improved by replacing the varistor. As a result of this study, the reliability of radar control units is enhanced and the probability of malfunction is reduced.
Keywords
Radar Control Unit; Surge Limiting Voltage test; Serge Protection Device; Thermal Stability; Varistor;
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  • Reference
1 "Low-voltage surge protective devices-Part11 : Surge protective devices connected to low-voltage power systems-Requirements and test methods" Korean Agency for Technology and Standards, KS C IEC 61643-11, 2012.
2 Tae-Hun Jeong, "Development of Thermal Runaway Preventing Varistor to Improve the Reliability and Safety of Surge Protective Device" Thesis for a degree of Soongsil Univercity, 2010.
3 Jang-Hwan Choe, "A Study on the Application of surge Protective Devices in Low Vlotage System" Thesis for a degree of Incheon National University, 2013.
4 Ki-Hong Lee, "Selecting and Applying of Surge Protection Device", The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers, pp. 56-59, v.5, no.26, 2012.
5 Bok-Hee Lee, Kyoung-Ok Lee, Chang-Hwan Ahn, Seung-Chil Lee, Jung-Wung Park, "Surge Protective Device Combined with Varistor and LC Filter on AC Power Circuits", The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers, pp. 109-116, v.4, no.11, 1997.
6 Oun-Seok Kim, Byung-Rak Park, Jae-Chul Kim, Sang-yun Yun, "Technology of Surge Protective Devices used in Low-voltage Power Circuits", The Korean Institute of Electrical Engineers, pp. 527-529, 2002.