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54. Editorial

Author

Florkowski, Marek

Abstract

The electrical insulation field is a rapidly growing domain—from conventional generation, transmission, and distribution segments to renewable energy and industrial applications and from currently having a ubiquitous presence in newly established areas of electrically driven transportation such as high-speed rail, maritime transportation, and electromobility up to the advanced segment that is represented by more-or all-electric aircraft and space applications. It is expected that the green electrification of transportation will significantly contribute to hitting our global climate targets.

Published
2024
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64. Surviving a strike

Author

Piasecki, Wojciech, Florkowski, Marek, Fulczyk, Marek, Klys, Pawel, Stryken, Egil, and Gawad, Piotr

Subjects
System failures (Engineering) -- Analysis, Voltage -- Analysis, Electronics and electrical industries
Abstract

Byline: Wojciech Piasecki, Marek Florkowski, Marek Fulczyk, Pawe l Klys, Egil Stryken , Piotr Gaw A*d A lightning strike is not a pleasant experience under any circumstances. For electrical equipment [...]

Published
2012

80. High voltage harmonics induced modifications of PD phase-resolved patterns.

Author

FLORKOWSKI, MAREK, FLORKOWSKA, BARBARA, and ZYDROŃ, PAWEŁ

Subjects
*ELECTRIC equipment, *PARTIAL discharges, *HIGH voltages, *ELECTRIC insulators & insulation, *SPECTRUM analysis, *HARMONIC analyzers
Abstract

Partial discharges (PD) are influencing electrical insulating systems of high voltage electrical devices. Typically, in laboratory and diagnostics AC tests focused on measuring and analysis of PD, a pure sinusoidal voltage waveform is assumed. However, in practice the spectral content of the working voltage is rarely so ideal and additional spectral components have a significant impact on the discharge behaviour in electrical insulation systems. In this paper the influence of voltage harmonics on PD behaviour and phase-resolved PD patterns evolution is analysed. The presented experiments were conducted on a specimen representing a gaseous inclusion embedded in electrical insulation. The experimental results showed that various harmonic compositions superimposed on the fundamental sinusoidal waveform have a significant impact on PD intensity and maximum charge. In consequence, the derived patterns of PD phase, and magnitude distributions are distorted, and statistical parameters calculated on their basis are changed. In certain environments, neglecting harmonic content in the testing voltage may lead to a misleading interpretation and assessment of PD severity. [ABSTRACT FROM AUTHOR]

Published
2018
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90. Analiza rozkładu przepięć piorunowych w uzwojeniu warstwowym transformatora energetycznego.

Author

ADAMCZYK, Bartłomiej and FLORKOWSKI, Marek

Abstract

Copyright of Przegląd Elektrotechniczny is the property of Przeglad Elektrotechniczny and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2016
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91. Experimental evaluation of breakdown voltage and life time for models of the low voltage electrical motors windings.

Author

FLORKOWSKA, Barbara, FLORKOWSKI, Marek, ZYDROŃ, Paweł, and ROEHRICH, Józef

Subjects
BREAKDOWN voltage, ELECTRIC breakdown, ELECTRIC windings, ELECTRIC generators, ELECTRIC equipment
Abstract

Copyright of Przegląd Elektrotechniczny is the property of Przeglad Elektrotechniczny and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2016
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