Journal ArticleDOI
Physical concepts of corona in capacitors
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TLDR
In this paper, it was shown that corona is the limiting factor in determining satisfactory voltage stress levels in capacitors where high operating stresses are desirable, and obtainable through the use of high-quality insulation.Abstract:
CORONA OFTEN BECOMES the limiting factor in determining satisfactory voltage stress levels in capacitors where high operating stresses are desirable, and obtainable through the use of high-quality insulation. Recognition of this factor has resulted in extensive investigations1 of the effects on corona of many design and operating variables, and subsequent analysis of test results has revealed certain concepts which explain much of the behavior of corona in thin dielectrics.read more
Citations
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Proceedings ArticleDOI
Capacitor selection for modular multilevel converter
TL;DR: In this paper, a straightforward computational procedure and a set of curves are presented to assist the capacitor selection, taking into account criteria in the aspects of maximum capacitor voltage, capacitor voltage ripple, SM voltage capability, and capacitor ripple current stress.
Journal ArticleDOI
Development of Oil-Impregnated, All-Polypropylene-Film Power Capacitor
TL;DR: In this paper, the authors developed all polypropylene-film power capacitors with half the dielectric loss of conventional paper-film capacitors and the capacity of the capacitors is less than one-seventh of the conventional paper film capacitors.
Journal ArticleDOI
Application of Volume Theory of Dielectric Strength to Oil Circuit Breakers [includes discussion]
Dissertation
Modular multilevel converter : submodule dimensioning, testing method, and topology innovation
TL;DR: In this article, a modular multilevel converter (MMC) is developed as a core technology for the next generation of high-power, voltage source converters (VSCs).
Journal ArticleDOI
Corona-Level Scanning or High-Voltage Power Cables
F. H. Gooding,H. B. Slade +1 more
References
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Journal ArticleDOI
Internal discharges in dielectrics: their observation and analysis
A.E.W. Austen,W. Hackett +1 more
TL;DR: In this paper, the authors reviewed previous work on discharge detection and compared the sensitivity of different discharge detection methods, and the relationship between discharge characteristics and life under certain conditions is established.
Journal ArticleDOI
Ionization Studies in Paper-Insulated Cables---III
TL;DR: In this article, the authors present the third report of the research investigation of ionization phenomena in paper-insulated, high-voltage cables, which is being conducted at the Harvard Engineering School under the auspices of the Impregnated Paper-Insulated Cable Research Committee.
Journal ArticleDOI
Development of Corona Measurements and Their Relation to the Dielectric Strength of Capacitors
TL;DR: In this paper, the authors used the ionization voltage level of the dielectric of the capacitors to determine the operating voltage stress levels of the very thin dielectrics used in capacitors and applied it to evaluate electrical insulations for other devices.
Journal ArticleDOI
Some mechanisms of insulation failure
H.F. Church,C.G. Garton +1 more
TL;DR: In this paper, a review of recent progress emphasizing that failure depends on a number of distinct factors which can be separated by suitable techniques, experimental results are given covering some theories recently established and the conclusion is drawn that working stresses in insulation can usually be increased when the cause of failure is known in detail and the design modified accordingly.
Journal ArticleDOI
The dielectric strength and life of impregnated-paper insulation-III
John B. Whitehead,J. M. Kopper +1 more
TL;DR: In this paper, the first occurrence of gaseous ionization within the test specimen was detected by using a thyratron in the grounded lead of the sample with suitable connection to a rapid circuit breaker in the primary.