Experience with Return Voltage Measurements for Assessing Insulation Conditions in Service Aged Transformers

Yao, Zheng Tong and Saha, Tapan K. (2003) Experience with Return Voltage Measurements for Assessing Insulation Conditions in Service Aged Transformers. IEEE Transactions on Power Delivery, 18 1: 128-135. doi:10.1109/TPWRD.2002.803722

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Author Yao, Zheng Tong
Saha, Tapan K.
Title Experience with Return Voltage Measurements for Assessing Insulation Conditions in Service Aged Transformers
Journal name IEEE Transactions on Power Delivery   Check publisher's open access policy
ISSN 0885-8877
Publication date 2003-01-01
Sub-type Article (original research)
DOI 10.1109/TPWRD.2002.803722
Open Access Status File (Author Post-print)
Volume 18
Issue 1
Start page 128
End page 135
Total pages 8
Place of publication New York, USA
Publisher IEEE
Language eng
Subject 290901 Electrical Engineering
Abstract This paper describes the investigation of the insulation condition of a number of power and distribution type transformers of different manufacturing dates and with different operating histories. Return voltage measurements were conducted for these transformers. Effects of moisture and aging on the oilpaper insulation of these transformers were investigated and results are presented in this paper. Moisture in oil samples at known temperature was measured for these transformers. Previously accelerated aging experiments were performed on paper wrapped insulated conductors in different environments over a temperature range of 115 to 145 C. Results from the measurements on transformers are compared with those of the accelerated aged samples and are described in this paper.
Keyword condition monitoring
dielectric measurement
insulation aging
insulation life
molecular weight
polarization
power transformer
transformer insulation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes Originally published as Yao, Zheng Tong and Saha, Tapan K. (2003) Experience with Return Voltage Measurements for Assessing Insulation Conditions in Service Aged Transformers. IEEE Transactions on Power Delivery 18(1):128-135. Copyright 2003 IEEE.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Information Technology and Electrical Engineering Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 39 times in Thomson Reuters Web of Science Article | Citations
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Created: Mon, 21 Feb 2005, 10:00:00 EST by Tapan Kumar Saha on behalf of School of Information Technol and Elec Engineering