NDLI: Dependence of return voltage characteristics on change of insulation conductivity and polarization resistance

Content Provider	IEEE Xplore Digital Library
Author	Kozlovskis, A.
Copyright Year	1999
Description	Author affiliation: Inst. of Power Eng., Riga Tech. Univ., Latvia (Kozlovskis, A.)
Abstract	A demand for a reliable diagnostic method is growing by the increase of the age of equipment. The return voltage characteristics such as the maximum of return voltage, the initial slope of return voltage and the time to peak value dependencies on charging time are discussed in this paper. The analysis of these characteristics increases the information of the insulation properties of equipment. The increase of conductivity and decrease of polarization resistance are closely related with the ageing processes of insulation. The changes of these dielectric phenomena can be seen by the analysis of return voltage characteristics. The theoretical study of the polarization index particularly used for the assessment of insulation systems is given in paper.
Starting Page	103
Ending Page	106
File Size	414943
Page Count	4
File Format	PDF
ISBN	0780357574
ISSN	03622479
DOI	10.1109/EEIC.1999.826189
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage Conductivity Polarization Dielectrics and electrical insulation Equivalent circuits Dielectric loss measurement Electrical resistance measurement Loss measurement Power transformer insulation Dielectric measurements
Content Type	Text
Resource Type	Article

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