| 开关型SPD在不同冲击电流下的工频续流实验研究 |
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| 引用本文： | 任晓明,孙伟,傅正财.开关型SPD在不同冲击电流下的工频续流实验研究[J].低压电器,2009(1):11-13. |
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| 作者姓名： | 任晓明 孙伟 傅正财 |
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| 作者单位： | 1. 上海交通大学电气工程系,上海,200030;上海市防雷中心,上海,201615
2. 上海交通大学电气工程系,上海,200030 |
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| 摘 要： | 研究了冲击电流波形对开关型电涌保护器（SPD）的工频续流的影响。设计了冲击电流与工频电源试验回路，采用8／20us和10／350us冲击电流波形，从0°同步触发角开始，以30°的间隔逐级增加，对该SPD的工频续流进行对比试验。试验结果表明，采用10／350us冲击电流作为Ⅰ级开关型SPD试品动作负载预处理试验的测试波形，对试品的考验比采用8／20us冲击电流更严苛。
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| 关 键 词： | 电涌保护器 同步触发角 冲击电流 |
Experimental Investigation of 50 Hz Continuous Current of Switching Type SPD under Different Impulse Currents |
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| REN Xiaoming,SUN Wei,FU Zhengcai.Experimental Investigation of 50 Hz Continuous Current of Switching Type SPD under Different Impulse Currents[J].Low Voltage Apparatus,2009(1):11-13. |
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| Authors: | REN Xiaoming SUN Wei FU Zhengcai |
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| Affiliation: | 1.School of Electrical Engineering;Shanghai Jiaotong University;Shanghai 200030;China;2.Shanghai Lightning Protection Center;Shanghai 201615;China |
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| Abstract: | The influence of impulse current waveform on 50 Hz continuous current of switching type surge protective device（SPD） was studied, The test circuit for impulse current and 50 Hz power was designed. This circuit adopted 8/20 us and 10/350us impulse current, starting from 0° synchronous trigger angle, increasing by 30°, thus a comparison test on this 50 Hz continuous current was carried out. The experiment results show the test current using 10/350us impulse current as I level switching type SPD＇s working load preprocessing test waveform had harsher influence on the sample than using 8/20 us impulse current. |
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| Keywords: | surge protective device （SPD） synchronous trigger angle impulse current |
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