电力系统保护与控制Issue(11)：93-98,6.
直流熔断器短路分断试验的等效方法研究
Research on equivalent methods of short-circuit tests for DC fuses
摘要
Abstract
As for DC fuses, power capacity of the test device is heavily demanded in high current short-circuit tests, which constrains the development of high-breaking-capacity DC fuses. According to the characteristics of the DC fuses, three equivalent conditions are introduced:similar pre-arcing time, similar arcing energy, and similar recovery voltage. Meanwhile, two equivalent test methods are presented. The first method is to increase the resistance value of the direct test circuit, and the second method is to employ a bank of capacitors as the power source. By means of setting rational parameters for the proposed methods, a good equivalence to direct test and low cost can be obtained. Furthermore, the equivalence and its parameters setup of the proposed methods are discussed and illustrated. Finally, the proposed equivalent test methods and the direct test are compared through 110 kA short-circuit test, with DC fuses rated 1200 V/1250 A and 1200 V/200 A, which further verify the effectiveness of the proposed methods. The two equivalent test methods can be applied in short-circuit test of the DC current limiting circuit breakers. This work is supported by National Natural Science Foundation of China (No. 51177169).关键词
直流熔断器/短路分断试验/等效试验方法/回路电阻/电容器组Key words
DC fuse/short-circuit test/equivalent test method/circuit resistance/bank of capacitors分类
信息技术与安全科学引用本文复制引用
陈搏,庄劲武,王晨,袁志方..直流熔断器短路分断试验的等效方法研究[J].电力系统保护与控制,2013,(11):93-98,6.基金项目
国家自然科学基金项目(51177169) （51177169）
