NDLI: Experimental application of digital PD measurements to the diagnostics of railway system drives insulating systems

Content Provider	IEEE Xplore Digital Library
Author	Centurioni, L. Coletti, G. Guastavino, F. Colombo, A.
Copyright Year	1998
Description	Author affiliation: Dept. of Electr. Eng., Genoa Univ., Italy (Centurioni, L.)
Abstract	The present work explores the possibility of introducing, in the service monitoring of electrical drives for railway systems (or for similar transportation systems), a diagnostic tool of the relevant insulating system, based on the digital measurement of partial discharges (PD) by means of PRPDA (Phase Resolved Partial Discharge Analyser) devices. The relevant investigation regarded both new and "aged" (that is having a record of 3500 service hours) asynchronous rotating machines, which, after a specific optimisation of the testing procedure and of the testing circuit, have been subjected to several PD measuring campaigns, run at four different AC voltages. A suitable analysis of the relevant PD data, performed through an "ad hoc" software, allowed to identify several indicators (derived quantities and/or statistical parameters related to the acquired PD patterns) which have a potential for a clear discrimination between new and "aged" insulation. Therefore the results of this preliminary work evidence that a correct application of digital PD measuring techniques can offer a sound basis to develop a tool to monitor the conditions of the insulating system of electrical drives for railways systems.
Starting Page	131
Ending Page	134
File Size	398384
Page Count	4
File Format	PDF
ISBN	0780342372
DOI	10.1109/ICSD.1998.709243
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-06-22
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges Circuit testing Partial discharge measurement Rail transportation Dielectrics and electrical insulation Electric variables measurement Monitoring Drives Phase measurement Rotating machines
Content Type	Text
Resource Type	Article

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