Results 11 to 20 of about 14,778 (170)

Particle Filtering Based Remaining Useful Life Prediction for Electromagnetic Coil Insulation

open access: yesSensors, 2021
Electromagnetic coils are one of the key components of many systems. Their insulation failure can have severe effects on the systems in which coils are used.
Haifeng Guo   +6 more
doaj   +1 more source

Ultrasonic monitoring of insulated block joints [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2018
Insulated block joints are essential components used in railway tracks. They are divided into circuits and are used for train detection and signalling. However, they also represent a weak point in the track system and have a finite life. Condition monitoring of these components for planning preventative maintenance is currently labour intensive, and ...
Stephen, J.T.   +4 more
openaire   +2 more sources

Real-time insulation lifetime monitoring for motor windings [PDF]

open access: yes2016 XXII International Conference on Electrical Machines (ICEM), 2016
This paper investigates the development and implementation of a real-time thermal ageing model for polymer-based electrical wire insulation using the classical Arrhenius relationship for chemical reaction rates. The paper presents the theoretical development and implementation of the method for predicting the insulation lifetime based on real-time ...
Tshiloz, Kavul   +4 more
openaire   +1 more source

Comparison and analysis of aging characteristics of insulation paper between mine power transformer and ordinary power transformer

open access: yesGong-kuang zidonghua, 2020
Collect screen paperboard of mine power transformer and ordinary power transformer in practical lifetime cycle to make insulation test samples, and according to the standard of power, use test means such as viscosity tester, scanning electron microscopy ...
ZHOU Yiheng   +3 more
doaj   +1 more source

Monitoring and Diagnostic of Transformer Solid Insulation

open access: yesIEEE Power Engineering Review, 2002
Liberalization of the energy market has put increasing pressure on both electricity producers and distributors for lower costs. Since maintenance is a major expense account, such companies hill be inclined to reduce maintenance budgets. At the same time, increased liability for nondelivered-energy increases the costs of sudden failure of a component ...
van Bolhuis, J.P. (author)   +2 more
openaire   +3 more sources

Online monitoring method of mine-used high voltage cable insulatio

open access: yesGong-kuang zidonghua, 2017
In order to monitor insulation condition of mine-used high voltage cable in real time, an online monitoring method of mine-used high voltage cable insulation based on wide area measurement system(WAMS) was proposed.
ZHANG Xiao   +4 more
doaj   +1 more source

A STATISTICAL MODEL OF MONITORING OF INSULATION BREAKDOWN VOLTAGE STABILITY IN THE PROCESS OF ENAMELED WIRES PRODUCTION

open access: yesElectrical engineering & Electromechanics, 2019
This paper is devoted to non- destructive technological monitoring of defects of insulation of enameled wires with poliimid polymer. The authors present a statistical method for processing, comparison and analysis of outcomes of measurements of ...
A. G. Gurin   +5 more
doaj   +1 more source

ONLINE TECHNOLOGICAL MONITORING OF INSULATION DEFECTS IN ENAMELED WIRES

open access: yesElectrical engineering & Electromechanics, 2017
In this paper the authors used non-destructive technological monitoring of defects insulation enameled wire with poliimid polymer. The paper is devoted to the statistical method for processing, comparison and analysis of results of measurements of ...
V. M. Zolotaryov   +4 more
doaj   +1 more source

Insulation Condition Assessment in Inverter-Fed Motors Using the High-Frequency Common Mode Current: A Case Study

open access: yesEnergies
The use of the common mode current for stator winding insulation condition assessment has been extensively studied. Two main approaches have been followed.
Mariam Saeed   +4 more
doaj   +1 more source

Study on the performance of the new composite thermal insulation lining for the railway operational tunnel in cold regions

open access: yesCase Studies in Thermal Engineering, 2022
In railway tunnels located in cold regions, frost damage is constantly emerging, which seriously affects the safety of railway tunnel operations. While having general thermal insulation effects, thermal insulation measures developed in previous studies ...
Libin Wang   +4 more
doaj   +1 more source

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