| 高精度金属氧化物避雷器测试仪标准装置的研制 |
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| 引用本文： | 李豹,舒乃秋,李自品,彭辉.高精度金属氧化物避雷器测试仪标准装置的研制[J].高压电器,2009,45(1). |
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| 作者姓名： | 李豹 舒乃秋 李自品 彭辉 |
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| 作者单位： | 武汉大学电气工程学院,湖北,武汉,430072 |
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| 摘 要： | 为了保证电力系统的安全可靠运行,笔者研制了一种基于DSP和CPLD技术的高精度金属氧化物避雷器测试仪标准装置,产生标准的电压和电流信号,模拟金属氧化物避雷器的运行状态,对金属氧化物避雷器测试仪进行检定。该标准装置采用高分辨率全数字移相技术和反馈控制技术,有效地提高了装置输出精度。送中南国家计量测试中心测试,测试结果表明该装置的输出电压电流的精度达到0.1%,电压与电流之间相位的控制精度达到0.04°,满足对金属氧化物避雷器测试仪检定的要求。
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| 关 键 词： | 金属氧化物避雷器 测试仪 标准装置 |
Development of High-precision Standard Device for ZnO Arrestor Testing Instrument |
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| LI Bao,SHU Nai-qiu,LI Zi-pin,PENG Hui.Development of High-precision Standard Device for ZnO Arrestor Testing Instrument[J].High Voltage Apparatus,2009,45(1). |
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| Authors: | LI Bao SHU Nai-qiu LI Zi-pin PENG Hui |
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| Affiliation: | School of Electrical Engineering;Wuhan University;Wuhan 430072;China |
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| Abstract: | A high-precision standard device for metal-oxide surge arrester testing instrument based on DSP and CPLD was developed to verify the testing instrument.This device can generate standard voltage and current to simulate metal-oxide surge arrester.The high spatial resolution digital phase-shifting technology and feedback control technology were utilized in design of the device to improve its precision.The device was tested by mid-south national center of metrology,and the results show that it can meet the requ... |
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| Keywords: | metal-oxide surge arrester testing instrument standard device |
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