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Test Research and Circuit Optimization of High-Voltage Current-Limiting Fuse
编号：23 访问权限：仅限参会人 更新：2026-06-15 14:55:01 浏览：25次 口头报告

报告开始：暂无开始时间（Asia/Shanghai）

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摘要
Abstract: As a core overcurrent protection component in power systems, current-limiting fuses are widely used in power transmission and distribution networks, industrial equipment protection and other fields by virtue of their reliable breaking characteristics. The quality of their breaking performance is directly related to the safety and stability of power grid operation, so it is of great engineering significance to carry out accurate and effective breaking performance verification tests. Under breaking conditions, when a short current flows through a current-limiting fuse, the fuse element made of metal conductor is connected in series in the circuit. The fuse element utilizes its own resistance heating effect to melt rapidly, thus realizing the interruption of short current. In type tests, under the recovery voltage specified in the standard, no dielectric breakdown occurs in the fuse, and all performance indicators meet the breaking performance evaluation requirements in the standard. However, under some fault conditions of the test circuit, the grounding wire may fall off during circuit rewiring, resulting in circuit faults, which makes the test voltage deviate from the standard specified range, affects the validity of the test, and even causes fuse breaking failure and fuse housing rupture. Consequently, a large amount of smoke, dust and metal ions are generated, polluting the insulators in the test circuit and further triggering ground discharge faults. To solve the above problems, this paper focuses on the technical optimization and performance evaluation of current-limiting fuse breaking tests. According to the relevant technical requirements of IEC 60282-1 and GB/T 15166.2, based on the structural characteristics of the existing AC test circuit, circuit simulation technology is introduced to construct the test circuit model. The variation characteristics of voltage and current during the breaking process are accurately simulated through simulation analysis, providing theoretical support for fault mechanism analysis and circuit optimization design. On this basis, a variety of targeted test circuit optimization schemes are proposed, an AC circuit test platform is built, and the corresponding Mode 1 test is carried out. The test results show that the optimized test circuit can effectively avoid the test failure caused by rewiring faults, improve the stability and reliability of the test process, and realize the accurate evaluation of the breaking performance of current-limiting fuses, providing reliable technical support for the quality control and technical upgrading of power system protection components.
Key words: Current-Limiting Fuse; High-Voltage; Breaking Test; Test Circuit Optimization
 
关键词
Current-Limiting Fuse; High-Voltage; Breaking Test; Test Circuit Optimization
报告人
Haoran Li
Intermediate enginee Xihari

稿件作者
Haoran Li Xihari
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重要日期

  • 会议日期

    10月25日

    2026

    至

    10月28日

    2026

  • 05月23日 2026

    初稿截稿日期

主办单位
西安交通大学
承办单位
西安交通大学
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