| 应用于配电网单相接地在线故障指示器电源 |
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| 引用本文： | 崔芳,王纯纯,曹胜. 应用于配电网单相接地在线故障指示器电源[J]. 电子科技, 2012, 25(9): 108-111 |
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| 作者姓名： | 崔芳 王纯纯 曹胜 |
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| 作者单位： | 1. 保定供电公司通信公司,河北保定,071003
2. 华北电力大学电力与电子工程学院,河北保定,071003 |
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| 摘 要： | 配电网单向接地故障指示器在配电网自动化方面应用广泛，但其在线故障诊断所需的能量不能靠低压侧供给，只能在高压端获取，因此文中设计了特殊的取电电路和控制电路，根据故障指示器各个元器件的需求，此取能电源可以为故障指示器提供5V、-4V和3．2V3路电压，以满足故障指示器信号采集和处理以及无线通信的需要。整机实验结果表明，该取能电源在15—800A的变化范围内，能提供不少于1．5W的功率，可满足故障指示器的需要。
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| 关 键 词： | 电流互感器 取能线圈 副边匝数 电压变换 |
A Power Supply Used in Single-Phase Online Fault Indicator of the Distribution Network |
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| CUI Fang,WANG Chunchun,CAO Sheng. A Power Supply Used in Single-Phase Online Fault Indicator of the Distribution Network[J]. Electronic Science and Technology, 2012, 25(9): 108-111 |
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| Authors: | CUI Fang WANG Chunchun CAO Sheng |
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| Affiliation: | 1.Communications Company,Baoding Power Supply Corporation,Baoding 071003,China; 2.School of Electric and Electronic Engineering,North China Electric Power University,Baoding 071003,China) |
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| Abstract: | The one-way ground fault indicator of the distribution network has found wide applications in distribution automation,but the energy it needs for online fault diagnosis can not rely on the low-voltage side.It can only be obtained in the high voltage side.Therefore,we have designed a special power taking circuit and control circuits.According to the needs of various components of the fault indicator the power supply can provide 5 V,-4 V and 3.2 V three-way voltage to meet the needs of the fault indicator signal in its acquisition,processing and wireless communications.The whole experimental results show that the power supply can provide a power of not less than 1.5 W when the current of overhead lines change from 15 A to 800 A.It can meet the requirement of the fault indicator. |
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| Keywords: | current transformer wire loop secondary turns voltage conversion |
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