Results 81 to 90 of about 5,098 (229)
In this work, we investigate a lightweight HVDC converter topology that combines the strengths of line‐commutated converters (LCC) and full‐bridge modular multilevel converters (MMC) to address the high cost and large footprint of conventional HVDC stations.
Yang Wang +7 more
wiley +1 more source
Introduction. Polyester-based composites are increasingly used in electrical applications for their insulation, mechanical, and thermal properties. Nanofillers have shown promise in enhancing the properties of polymer-based composites. Goal.
M. Rihan +4 more
doaj +1 more source
Surface flashover breakdown mechanisms on liquid immersed dielectrics [PDF]
Flashover formation and expansion mechanisms on the surfaces of different dielectrics immersed in transformer oil have been numerically analyzed.
Karl Borg +9 more
core +1 more source
Progress in Vacuum Flashover Mechanism: Validity of ETPR Theory
In this paper, the literature on vacuum flashover and mechanisms are reviewed, and the development of the Electron triggered polarization relaxation (ETPR) theory is the main content.
Kai Yin, Yin, Kai; id_orcid
core +1 more source
Statistical Analysis of Flashover
Many successful fire tests were carried out so far and are now being accumulated as the data base which can be analysed statistically by an electric computer. In this paper, by statistically analysing such accumulated fire test data, the effects of the variour factors on the flashover time and the presence of flashover in fire spread process are ...
openaire +2 more sources
Insulator flashover at cryogenic temperatures
This thesis describes the development and construction of a cryogenic surface flashover system. A brief discussion of surface flashover theory and the expected characteristics of cryogenic surface flashover is included in this thesis.
Stewart, Tina D.
core
Under dc electric field, pollution may be more easily deposited around insulator string caps and pins, distributing non-uniformly on its inner and outer parts, and presenting ring-like shape.
Zhijin Zhang +6 more
doaj +1 more source
Global model for flashover phenomena in vacuum: A comprehensive perspective
Flashover is an electrical breakdown along the dielectric-gas/vacuum/liquid interface under high electric field excitation. Surface flashover phenomena in vacuum greatly impede a variety of vacuum insulation devices and systems.
Neuber, Andreas +4 more
core +1 more source
Flashover and Transformer Voltage
This thesis stated many examples about transformer voltage on the direct current motor and generator that those were measured. They suggest that a flashover occurrence often has an indirect influence.
Sugimoto, Kensho +2 more
openaire +1 more source
Creeping flashover easily occurs at the interface between oil and pressboard in transformer and thus results in outage of power transmission system. Investigations have shown that creeping flashover characteristics at oil/pressboard interface can be ...
Meng Huang +5 more
doaj +1 more source

