| 引用本文: | 袁志方,庄劲武,王 晨,陈 搏,江壮贤.高速开断器的10 kV／10 kA介质恢复试验系统关键技术[J].电力自动化设备,2014,34(6): |
| YUAN Zhifang,ZHUANG Jinwu,WANG Chen,CHEN Bo,JIANG Zhuangxian.10 kV／10 kA dielectric recovery test system for high-speed isolators[J].Electric Power Automation Equipment,2014,34(6): |
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| 摘要: |
| 设计了包含电流回路、自然换流回路以及高电压回路的10 kV／10 kA试验系统，用于高速开断器的介质恢复试验。分析得出了高速开断器对于试验系统提出的需求：为试品制造人工电流过零点，且在所要求的介质恢复时间内一直维持电流过零点；电压源需要模拟灭弧熔断器的弧压；介质恢复开始后，经过指定的延时后再投入电压源。分析了电流回路的电气参数，确定了参数选取方案；提出了自然换流回路中避雷器的选型依据；总结了串联二极管组件的反向截止规律，进行了高电压回路点火球隙的性能试验。系统调试结果证实了该介质恢复试验系统具备了完成额定10 kV／10 kA高速开断器介质恢复试验的能力。 |
| 关键词: 高速开断器 自然换流 介质恢复特性 试验 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（50877078，51177169，51-307179，51207166）；海军工程大学自然科学基金资助项目（435517F21） |
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| 10 kV／10 kA dielectric recovery test system for high-speed isolators |
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YUAN Zhifang1, ZHUANG Jinwu1, WANG Chen1, CHEN Bo2, JIANG Zhuangxian1
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1.College of Electrical Engineering，Naval University of Engineering，Wuhan 430033，China;2.Naval Military Representative Office in Dalian No.426，Dalian 116005，China
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| Abstract: |
| A 10 kV／10 kA dielectric recovery test system is designed for the dielectric recovery experiment of high-speed isolators，which consists of the current loop，natural current-commutation loop and high-voltage loop. The requirements of high-speed isolators for the dielectric recovery test system are analyzed：the artificial current ZCP（Zero Crossing Point） should be created and maintained during the dielectric recovery period；the arc voltage of arc-extinguish fuse should be simulated by the voltage source；the voltage source should be switched on with a delay of set time after the dielectric recovery starts. The parameters of current loop are analyzed and the parameter selection scheme is determined；the type selection criterion of lightning arrester used in the natural current-commutation loop is proposed；the reverse check law of serial diode is summarized and the performance test is carried out for the gap of high-voltage ignition ball. The results of system commissioning verify that the designed system is capable of testing the dielectric recovery of 10 kV／10 kA high-speed isolators. |
| Key words: high-speed isolator natural current-commutation dielectric recovery characteristic testing |
