公开(公告)号：US20140172327A1

公开(公告)日：2014-06-19

申请号：US13718487

申请日：2012-12-18

Applicant: EATON CORPORATION

Inventor： XIN ZHOU ,  Mark A. Faulkner ,  Deborah K. Mort ,  John D. Weeks

IPC: G01R31/02 ,  G06F17/15

CPC classification number: G01R31/027 ,  G01R31/1209 ,  G01R31/1227

Abstract: An electrical fault detection system includes an underground transformer unit having an enclosure and an electrical busbar element extending from the enclosure, and an acoustic sensor apparatus operatively coupled to an external structure of the enclosure or the electrical busbar element. The acoustic sensor apparatus is structured to: (i) detect an acoustic signal within the enclosure, (ii) analyze the detected acoustic signal and determine whether the detected acoustic signal is indicative of an electrical fault within the enclosure using an event time correlation (ETC) algorithm, and (iii) responsive to determining that the detected acoustic signal is indicative of an electrical fault, output a message indicating that a fault has been detected.

Abstract translation: 电气故障检测系统包括具有外壳和从外壳延伸的电母线元件的地下变压器单元，以及可操作地耦合到外壳或电母线元件的外部结构的声学传感器设备。 声学传感器装置的结构是：（i）检测机壳内的声信号，（ii）分析检测到的声信号，并使用事件时间相关性（ETC）确定检测到的声信号是否表示机箱内的电气故障 ）算法，以及（iii）响应于确定检测到的声信号指示电故障，输出指示已经检测到故障的消息。