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发明公开
CN110687413A 一种局部放电电磁波衰减特性试验装置 无效 - 驳回

一种局部放电电磁波衰减特性试验装置
摘要：
本发明提供一种局部放电电磁波衰减特性试验装置，其中该装置包括GIS外壳、高压导体、UHF传感器、盆式绝缘子、碟式绝缘子、脉冲源信号发生器、示波器、电缆，在试验装置中设有八个盆式绝缘子；在盆式绝缘子的法兰小孔处安装有UHF传感器，该传感器既用作发射也用于接收；其中传感器分别安装在4个不同位置处，且都与示波器相连；通过试验GIS不同结构处的电磁波衰减特性，例如I型、L型和T型三种典型的GIS结构，可得到电磁波的衰减特性。本发明可实现对现场GIS局部放电电磁波信号衰减的测量，掌握局部放电电磁波信号在GIS中传播时的衰减特性，为现场UHF传感器的布点位置提供了充足的依据。
摘要（英）：

The invention provides a partial discharge electromagnetic wave attenuation characteristic test device comprising GIS shells, a high-voltage conductor, UHF sensors, basin type insulators, a disc typeinsulator, a pulse source signal generator, an oscilloscope and a cable. The eight basin type insulators are arranged in the test device; and the UHF sensors are arranged at in flange small holes of the basin type insulators. The sensors for transmission and receiving are installed at four different positions respectively and are connected with the oscilloscope. Attenuation characteristics of electromagnetic waves can be obtained by testing attenuation characteristics of the electromagnetic waves at different structures of the GIS, such as three typical GIS structures of I type, L type and T type. According to the invention, measurement of the attenuation of the on-site GIS partial discharge electromagnetic wave signal can be realized; the attenuation characteristics of the partial discharge electromagnetic wave signal during the propagation in the GIS can be obtained; and thus a sufficient basis is provided for the distribution positions of on-site UHF sensors.

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