| 电力电缆故障冲闪测试放电回路建模 |
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| 引用本文： | 李 峰,徐丙垠.电力电缆故障冲闪测试放电回路建模[J].电力自动化设备,2011,31(3):46-51. |
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| 作者姓名： | 李 峰 徐丙垠 |
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| 作者单位： | 1. 合肥工业大学,仪器科学与光电工程学院,安徽,合肥,230009
2. 山东科汇电力自动化有限公司,山东,淄博,255087 |
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| 摘 要： | 对电力电缆故障冲击高压闪络测试(简称冲闪测试)系统的放电响应进行了研究.在只考虑暂态低频分量信号的条件下,利用电缆的均匀传输线T型等效网络,建立了冲闪测试放电回路的集中参数电路模型.根据电缆的结构和材料参数.以及电缆集中参数与其分布参数之间的关系,推导了模型的电流、电压响应近似表达式.以及电流响应的衰减系数和振荡频率表...
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| 关 键 词： | 电力电缆 故障测距 冲闪测试 放电回路 二次脉冲法 |
Modeling of surge discharge circuit for power cable fault locator |
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| LI Feng and XU Bingyin.Modeling of surge discharge circuit for power cable fault locator[J].Electric Power Automation Equipment,2011,31(3):46-51. |
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| Authors: | LI Feng and XU Bingyin |
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| Affiliation: | LI Feng1,XU Bingyin2(1.School of Instrument Science and Photoelectric Engineering,Hefei University of Technology,Hefei 230009,China,2.Shandong Kehui Power Automation Co.,Ltd.,Zibo 255087,China) |
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| Abstract: | The current and voltage response of surge discharge circuit to impulse flashover voltage test system is analyzed.When only low frequency transient components are considered,the lumped parameter model of the surge discharge circuit of power cable fault locator is constructed based on the T-type equivalent network of uniform transmission line.According to the geometry and material specifications of power cable,as well as the relationship between its lumped and distributed parameters,the approximate expression... |
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| Keywords: | power cable fault locating impulse flashover voltage test discharge circuit secondary impulse method |
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