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首页> 外文期刊>IEEE Transactions on Power Delivery >Performance of MOV arresters during very close, direct lightning strikes to a power distribution system
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Performance of MOV arresters during very close, direct lightning strikes to a power distribution system

机译：在非常近的直接雷击配电系统时，MOV避雷器的性能

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摘要

In 1996, at the International Center for Lightning Research and Testing (ICLRT) at Camp Blanding, Florida, the responses of MOV arresters in an unenergized test distribution system, composed of an overhead line, underground cable, and padmount transformer with a resistive load, were measured during very close, direct lightning strikes to the overhead line. Arresters were installed on the overhead line at two locations 50 m apart (on either side of the strike point) and at the primary of the padmount transformer which was connected to the line via the underground cable. We obtained arrester data for this test configuration from two lightning flashes (containing a total of five strokes) which were artificially initiated from a natural thunderstorm, using the rocket-and-wire technique. We present the simultaneously-recorded arrester discharge current and voltage waveforms from one lightning stroke for one of the two arresters on the line and for the arrester at the transformer primary. Additionally, we estimate the energy absorbed by the arrester on the line as a function of time for the first 4 ms of the lightning event. The records presented are representative of those for all five strokes.
机译：1996年，在佛罗里达州坎普兰德市国际雷电研究与测试中心（ICLRT），MOV避雷器在无电测试分配系统中的响应，该系统由架空线，地下电缆和带有电阻性负载的垫装式变压器组成，在非常近的雷电直接作用于架空线时进行测量。避雷器安装在架空线上相距50 m的两个位置（在触击点的两侧），并在通过地下电缆与线路相连的衬垫式变压器的初级处。我们从两次雷电闪光（总共包含五个冲程）中获得了用于此测试配置的避雷器数据，这是使用火箭和电线技术从自然雷暴人工启动的。我们呈现了同时记录的避雷器放电电流和电压波形，该放电波形来自线路上两个避雷器之一的一次雷击，以及变压器一次侧的避雷器。此外，我们估计雷电事件发生后的前4 ms，线路上避雷器吸收的能量是时间的函数。所提供的记录代表所有五个笔划的记录。

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