公开(公告)号：WO2017043958A1

公开(公告)日：2017-03-16

申请号：PCT/MY2016/050054

申请日：2016-09-05

Applicant: TNB RESEARCH SDN. BHD. ,  UNIVERSITY OF LIVERPOOL

Inventor： LOOE, Hui Mun ,  JONES, Gordon Rees ,  DEAKIN, Anthony Grayham ,  SPENCER, Joseph William ,  ELZAGZOUG, Ezzaldeen Yousef

IPC: G01N33/28 ,  G01D21/00

CPC classification number: G01N33/2841

Abstract: The present invention provides a method (100, 200) for obtaining failure prognostic information of electrical power equipment based on degradation of dielectric insulation fluid that is immersed in components of said power equipment that include electrical windings and tap-changers comprising a step (107) of computing a rate of change with respect to time of each of a plurality of sets of tertiary (106a, 106b, 106c) and secondary (105a, 105b, 105c) first order chromatic parameters obtained for a plurality of time instances and which have been grouped according to parameter type of insulation fluid degradation, such as "Dissolved Gas Analysis (DGA)", "Acidity, Water Content, Dielectric Strength (AWD)" and a step (108) of assigning scores to said plurality of sets of tertiary (106a, 106b, 106c) and secondary (105a. 105b, 105c) first order chromatic parameters at said plurality of time instances and the rate of change with respect to time of said sets of tertiary (106a, 106b, 106c) and secondary (105a, 105b, 105c) first order chromatic parameters.

Abstract translation: 本发明提供一种方法（100,200），用于基于浸没在所述电力设备的组件中的电介质绝缘流体的劣化获得电力设备的故障预测信息，所述电力设备包括电绕组和分接开关，所述电绕组和分接开关包括步骤（107） 计算相对于多个三级（106a，106b，106c）和次级（105a，105b，105c）中的每一个的多个时间实例中获得的一阶色度参数的时间变化率， 根据“溶解气体分析（DGA）”，“酸度，含水量，介电强度（AWD）”等绝缘流体降解的参数类型分组，以及将分数分配给所述多组三级（ 106a，106b，106c）和次级（105a，105b，105c）在所述多个时间实例下的一阶色度参数和相对于所述三级（106a，106b，106c）和se的集合的时间的变化率 （105a，105b，105c）一阶色度参数。