NDLI: Qualification test results on stator bars of large hydro generators

Content Provider	IEEE Xplore Digital Library
Author	Soltani, R. Lafortune, L. Draper, R. Khosravi, A.
Copyright Year	2012
Description	Author affiliation: BC Hydro, 6911 Southpoint Drive, Edmonds A02, Burnaby, BC, V3N 4X8, Canada (Khosravi, A.) \|\| Andritz Hydro Ltd., 2015 Fisher Drive, Peterborough, ON, K9J 6X6, Canada (Soltani, R.; Lafortune, L.; Draper, R.)
Abstract	Thermal cycling and voltage endurance test (VET) are the most common tests used to qualify insulation systems of bars or coils of large rotating machines. This paper reports the results of these tests on 13.8 and 16 kV hydro generator bars. Partial discharge (PD), dissipation factor (DF) and tip-up tests are used as quantitative tests to assess the changes in condition of the insulation due to accelerated thermal and electrical aging. Breakdown tests were also performed to evaluate the effect of different stages of aging on dielectric strength of the bars.
Starting Page	596
Ending Page	600
File Size	207160
Page Count	5
File Format	PDF
ISBN	9781467304887
ISSN	1089084X
e-ISBN	9781467304870
e-ISBN	9781467304863
DOI	10.1109/ELINSL.2012.6251540
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bars Aging Partial discharges Insulation Voltage measurement Stress IEEE standards dissipation factor insulation system thermal cycling voltage endurance partial discharges
Content Type	Text
Resource Type	Article

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Qualification test results on multi-turn coils of large hydrogenerators

System for controlled aging of electrical windings, to perform an improved Voltage Endurance Test

A new test method for assessing the impact of thermal cycling on hydrogenerator stator insulation

Flexible medium voltage stator coil insulation system for on-site winding

Accelerated life testing of high voltage stator coils with enhanced PET-mica insulation system

Effect of long-term aging test under DC voltage on Roebel bars

Reduction techniques of partial discharge, dissipation factor, and external corona for high voltage stator windings

A combined voltage-endurance and thermal cycling test for stator coils and bars

Comparative AC and DC voltage endurance tests performed on Roebel bars

Qualification test results on stator bars of large hydro generators

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Qualification test results on multi-turn coils of large hydrogenerators

System for controlled aging of electrical windings, to perform an improved Voltage Endurance Test

A new test method for assessing the impact of thermal cycling on hydrogenerator stator insulation

Flexible medium voltage stator coil insulation system for on-site winding

Accelerated life testing of high voltage stator coils with enhanced PET-mica insulation system

Effect of long-term aging test under DC voltage on Roebel bars

Reduction techniques of partial discharge, dissipation factor, and external corona for high voltage stator windings

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Qualification test results on stator bars of large hydro generators