Journal ArticleDOI
Detection of partial discharges (Corona) in electrical apparatus
TLDR
In this paper, the development of various partial-discharge test methods as applied to cables, capacitors transformers, and rotating machines is examined in an historical context, with special emphasis placed on various discharge pulse analysis techniques, although it is pointed out that integrated charge measurements should receive greater attention, in particular as concerns their capability to respond to glow and pseudoglow discharges.Abstract:
The development of the various partial-discharge test methods as applied to cables, capacitors transformers, and rotating machines is examined in an historical context. Special emphasis is placed on various discharge pulse analysis techniques, although it is pointed out that integrated charge measurements should receive greater attention, in particular as concerns their capability to respond to glow and pseudoglow discharges. >read more
Citations
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Journal ArticleDOI
Partial discharges. Their mechanism, detection and measurement
TL;DR: Different partial discharge detection and measurement procedures suitable for use on cables, capacitors, transformers and rotating machines are examined and compared in this paper, with particular attention given in regard to their suitability to different types of electrical apparatus and cable specimens under test as well as their applicability to discharge site location and their capability to detect different forms of PD.
Journal ArticleDOI
Stochastic properties of partial-discharge phenomena
TL;DR: In this paper, the authors present a bibliography and survey of the literature concerned with theory and measurement of the stochastic behavior of pulsating partial discharge (PD) phenomena that can occur when insulation is subjected to electrical stress.
Journal ArticleDOI
Automated recognition of partial discharges
TL;DR: An overview of automated recognition of partial discharges (PD) is given, and the selection of PD patterns, extraction of relevant information for PD recognition and the structure of a data base forPD recognition are discussed.
Journal ArticleDOI
Physics and chemistry of partial discharge and corona. Recent advances and future challenges
TL;DR: A review of the physical and chemical processes in partial discharge (PD) phenomena can be found in this article, where the influence of memory propagation effects in controlling the stochastic behavior of PD is shown.
Journal ArticleDOI
Partial discharge detection and diagnosis in gas insulated switchgear: State of the art
TL;DR: The most common insulating gas used in GIS is Sulfur hexafluoride (SF 6 ) gas, which is widely used as an effective electrical insulation as well as an arc-quenching medium.
References
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Journal ArticleDOI
The Electric Characteristics of the Ozonator Discharge
TL;DR: In this article, the power consumption of an ozonator in terms of the peak voltage, the capacity of the dielectrics, the frequency and the discharge potential, e0, was investigated.
Journal ArticleDOI
Fundamental Limitations in the Measurement of Corona and Partial Discharge
Steven A. Boggs,G. C. Stone +1 more
TL;DR: In this article, the theoretical sensitivity of conventional partial discharge detectors is compared with that obtained from ultra wideband (UWB) (up to l GHz) detection systems, and the comparison indicates that for relatively lossfree distributed systems, such as SF6 insulated bus, the UWB system is up to two orders of magnitude more sensitive.
Journal ArticleDOI
The deterioration and breakdown of dielectrics resulting from internal discharges
TL;DR: In this article, the degradation of polythene and other dielectrics, when exposed to internal discharges, has been examined under controlled conditions, and the discharge-inception voltage and the magnitude and energy of individual discharges have been determined, by electrophotography.
Journal ArticleDOI
Detection of Slot Discharges in High-Voltage Stator Windings During Operation
John S. Johnson,Mead Warren +1 more
TL;DR: In this paper, a modified slot discharge detection method, which permits tests without shutting down the machine or using auxilliary high-voltage test equipment, was investigated, which involves connection of frequency sensitive equipment across all or part of the ntral impedance.