Classification of Quality Conditions of a Traction Motor Frame Insulation of Locomotives
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Dnipro National University of Railway Transport named after Academician V. Lazaryan
Abstract
ENG: Abstract. The objective of the article is to determine the quality conditions of a locomotive traction motor frame insulation based on observations over the recovery voltage and classification of a tested insulation wear degree as well as to determine estimates of operating time until the insulation restoration or replacement with a new one. To classify the insulation quality conditions and to forecast its residual life until the restoration, a cluster analysis and discriminant analysis are used based on indicators reflecting the properties of an insulation recovery voltage curve. The study defines an information content received from frame insulation recovery voltage readings as compared with its resistance from the perspective of testing the insulation condition and predicting its residual life. Statistical characteristics of clusters corresponding to the insulation condition stages allow determining the limit values of predicting parameters and estimating the residual insulation life prior the restoration. To classify the insulation condition, an integrated evaluation of the insulation condition quality is proposed. Integrated evaluation is performed according to the recovery voltage curve and is used as an indicator during clustering. An experimental study of the proposed method practically confirmed its effectiveness.
Description
M. Kapitsa: ORCID 0000-0002-3800-2920, V. Laguta: ORCID 0000-0002-4957-9178
Keywords
classification of isolation conditions, indicator, traction motor, clusters, КАТ, КЛ
Citation
Kapitsa, M. Classification of Quality Conditions of a Traction Motor Frame Insulation of Locomotives [Electronic resource] / Michail Kapitsa, Vasiliy Laguta, Yuriy Kozik // MATEC Web of Conferences. – 2019. – Vol. 294 : 2nd International Scientific and Practical Conference “Energy-Optimal Technologies, Logistic and Safety on Transport” (EOT-2019). – P. 1–7. – Access Mode: https://www.matec-conferences.org/articles/matecconf/pdf/2019/43/matecconf_eot18_03002.pdf (21.10.2019). – DOI: 10.1051/matecconf/201929403002.