The possibility of using information from the TEM- and TE-modes for the detection and location of partial discharges has been investigated. The propagation and attenuation of the E and H components of the different modes excited radially by a line current in a coaxial cylinder is described. To give the verification of it, experiments have been performed with simulated partial discharge currents injected radially in a GIS test facility. It is shown that: both the TEM-mode and TE/sub 11/-mode are excited by partial discharges in GIS; an inductive sensor allows the TEM-mode to be distinguished from the TE-mode; and the discharge location can be determined by employing different propagation velocities of the TEM- and TE/sub 11/-modes.
展开▼
机译：已经研究了使用来自用于检测和部分放电位置的TEM和TE模式的信息的可能性。描述了通过同轴圆筒中的线电流径向激励的不同模式的E和H组分的传播和衰减。为了提供验证，已经在GIS测试设施中径向注入的模拟局部放电电流进行了实验。结果表明：TEM模式和TE / SUB 11 / -MODE都是通过GIS部分放电的兴奋;电感传感器允许从TE模式区分TEM模式;并且可以通过采用TEM和TE / SUB 11 / -MODE的不同传播速度来确定放电位置。
展开▼
