公开(公告)号：US10833531B2

公开(公告)日：2020-11-10

申请号：US16578743

申请日：2019-09-23

Applicant: Rosemount Inc.

Inventor： Jeffrey C. Andle ,  David J. Lane ,  Thomas M. Cunneen ,  Daniel S. Stevens

IPC: H02J13/00 ,  H02J4/00 ,  G06K7/10 ,  H01L41/113

Abstract: A sensor module for monitoring an asset in an electrical power generation or distribution system includes a module body, a sensor, a sensor near field coupling structure, and an interrogation near field coupling structure. The sensor is supported by the module body, arranged to sense a parameter of the asset and configured to generate a sensor output relating to the parameter. The sensor near field coupling structure is connected to the sensor and supported on a first side of a module body. The interrogation near field coupling structure is supported on a second side of the module body. The sensor output is transmitted from the sensor near field coupling structure to the interrogation near field coupling structure. The sensor module is configured to provide electrical isolation between the asset and a monitoring circuit configured to receive the sensor output through the interrogation near field coupling structure.

公开(公告)号：US09753080B2

公开(公告)日：2017-09-05

申请号：US14961321

申请日：2015-12-07

Applicant: Rosemount Inc.

Inventor： Jeffrey Charles Andle ,  Thomas M. Cunneen ,  Maly Chap

IPC: G01R31/12 ,  G01R31/14

CPC classification number: G01R31/1272 ,  G01R31/1218 ,  G01R31/14

Abstract: A partial discharge detection system for detecting partial discharge events in an electrical component includes a transducer configured to receive a signal from the electrical component generated due to an occurrence of a partial discharge and responsively provide a transducer output. A signal processing chain includes a filter coupled to the transducer which filters the transducer output signal and responsively generating a filtered output. A digital signal processor performs a Discrete Fourier Transform (DFT) on the filtered output and generates coefficients which correspond to different modulation frequencies of the filtered, output. A controller identifies an occurrence of a partial discharge in the electrical component based upon the plurality of coefficients.