Results 31 to 40 of about 214,445 (299)

Learning models of plant behavior for anomaly detection and condition monitoring [PDF]

open access: yes, 2007
Providing engineers and asset managers with a too] which can diagnose faults within transformers can greatly assist decision making on such issues as maintenance, performance and safety. However, the onus has always been on personnel to accurately decide
Brown, A.J.   +5 more
core   +2 more sources

Using a Scintillation Detector to Detect Partial Discharges [PDF]

open access: yesSensors, 2019
This article presents the possibility of using a scintillation detector to detect partial discharges (PD) and presents the results of multi-variant studies of high-energy ionizing generated by PD in air. Based on the achieved results, it was stated that despite a high sensitivity of the applied detector, the accompanying electromagnetic radiation from ...
Łukasz Nagi   +3 more
openaire   +2 more sources

Research on the Optical Properties of Transformers Partial Discharge Based on Different Discharge Models

open access: yesMATEC Web of Conferences, 2016
In this paper, the different types of discharge in transformer were simulated based on the real transformer fault model. The optical partial discharge detection system was established based on optical sensors which were capturing partial discharge ...
Wei Bengang   +3 more
doaj   +1 more source

Antenna Parametrization for the Detection of Partial Discharges [PDF]

open access: yesIEEE Transactions on Instrumentation and Measurement, 2013
Partial discharge (PD) detection is a widely extended technique for electrical insulation diagnosis. Ultrahigh-frequency detection techniques appear as a feasible alternative to traditional methods owing to their inherent advantages such as the capability to detect PDs online and to locate the piece of equipment with insulation problems in substations ...
Robles Muñoz, Guillermo   +5 more
openaire   +2 more sources

Field Applications of Ultra High Frequency Techniques for Defect Detection in GIS

open access: yesSensors, 2018
The reliable and stable operation of power apparatus is important for the development of GIS. It is important to utilize condition monitoring technologies and anticipate possible failures in advance.
Jun Xiong   +4 more
doaj   +1 more source

Suppression Method of Partial Discharge Interferences Based on Singular Value Decomposition and Improved Empirical Mode Decomposition

open access: yesEnergies, 2021
Partial discharge detection is an important means of insulation diagnosis of electrical equipment. To effectively suppress the periodic narrowband and white noise interferences in the process of partial discharge detection, a partial discharge ...
Linao Li, Xinlao Wei
doaj   +1 more source

Classification of EMI discharge sources using time–frequency features and multi-class support vector machine [PDF]

open access: yes, 2018
This paper introduces the first application of feature extraction and machine learning to Electromagnetic Interference (EMI) signals for discharge sources classification in high voltage power generating plants.
Boreham, Philip   +5 more
core   +2 more sources

Development of an integrated low-power RF partial discharge detector [PDF]

open access: yes, 2009
This paper presents the results from integrating a low-power partial discharge detector with a wireless sensor node designed for operating as part of an IEEE 802.15.4 sensor network, and applying an on-line classifier capable of classifying partial ...
Baker, P.C.   +3 more
core   +1 more source

Distribution Characteristics of Partial Discharge Radio Frequency Signal in Transformer Tank and Bushing

open access: yesZhongguo dianli, 2023
The external partial discharge (PD) radio frequency (RF) detection method is suitable for equipment in operation, and has become one of the important means to perceive the insulation defects of transformer and bushing.
Hui HUANG   +4 more
doaj   +1 more source

Partial discharge pulse propagation in power cable and partial discharge monitoring system [PDF]

open access: yes, 2014
Partial discharge (PD) based condition monitoring has been widely applied to power cables. However, difficulties in interpretation of measurement results (location and criticality) remain to be tackled.
Dong, Xiang   +6 more
core   +1 more source

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