| 三相交流电源缺相保护电路 |
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| 引用本文： | 张海涛. 三相交流电源缺相保护电路[J]. 湖南工程学院学报(自然科学版), 2005, 15(1): 16-19 |
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| 作者姓名： | 张海涛 |
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| 作者单位： | 长沙学院,物电系,湖南,长沙,410003 |
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| 摘 要： | 介绍了一个主要由峰值检波器和脉冲宽度鉴别器构成的三相交流电源缺相保护电路．当三相交流电源出现缺相或某相电压过低时，电路动作切断电源，保护用电设备，并发出报警信号．
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| 关 键 词： | 三相交流电源 缺相 峰值检波器 脉冲宽度鉴别器 |
| 文章编号： | 1671-119X(2005)01-0016-04 |
| 修稿时间： | 2004-06-08 |
Electric Circuit for Protecting Three-phrase Alternatiy Current Supply with Lose Phase |
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| ZHANG Hai-tao. Electric Circuit for Protecting Three-phrase Alternatiy Current Supply with Lose Phase[J]. Journal of Hunan Institute of Engineering(Natural Science Edition), 2005, 15(1): 16-19 |
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| Authors: | ZHANG Hai-tao |
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| Abstract: | This paper introduces a kind of electric circuit which mainly consists of a peak detector and a pulse-width discriminator for protecting the three-phase alternating-current supply with loses a phase.When the three-phase alternating-current supply with loses a phase or phase voltage is too low,the circuit will act to cut off the electric source to protect electric installation,and send warning signals at the same time. |
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| Keywords: | three-phase alternating-current supply lose phase peak detector pulse-width discriminator |
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