scholarly journals Calculation Method of Electrostatic Field Intensity in Insulation of Multicore Cables

10.12737/211 ◽  
2013 ◽  
Vol 2 (1) ◽  
pp. 39-43
Author(s):  
Рудаков ◽  
S. Rudakov ◽  
Богомолов ◽  
A. Bogomolov

Calculation method of electrostatic field intensity penetrating into insulation of cables’ strands, allowing consider partial penetration of this field into insulation of cable’s separate elements, and, therefore, to lower the field intensity measurement error, arising at such influence of fields is stated. It allows predict fire safety of multicore cables.

Author(s):  
Anna Firych-Nowacka ◽  
Krzysztof Smolka ◽  
Sławomir Wiak

Purpose Electrospinning is a method of the polymer super thin fibres formation by the electrostatic field. The distribution of electrostatic field affects the effectiveness of the electrospinning. Design/methodology/approach This paper presents various computer models that can improve the electrospinning process. The possibilities of modelling the electrostatic field in the design of electrospinning equipment are presented. Findings In the research part, the one focussed on finding a cylinder-shaped collector structure to limit the adverse effect of an uneven distribution of the electric field intensity on the collector. Originality/value The paper concerns the improvement of the electrospinning process with the use of electrostatic field modelling. In the first part, several possible applications of electrostatic models have been indicated, thanks to which the efficiency of the process has been improved. The original solution of the collector geometry was presented, which according to the authors, in comparison with previous models, gives the most promising results. In this solution, it was possible to obtain an even distribution of the electric field intensity while removing the unfavourable effect of the field strength increase on the outer edges of the collector. The most important aspect in this paper is electric field strength analysis.


2015 ◽  
Vol 132 (0) ◽  
pp. 78-85
Author(s):  
Kohta OHSHIMA ◽  
Tadasuke FURUYA ◽  
Takahiro TAKEMOTO ◽  
Ruri SHOJI

2019 ◽  
Vol 9 (15) ◽  
pp. 2988 ◽  
Author(s):  
Muhammad Junaid Alvi ◽  
Tahir Izhar ◽  
Asif Ali Qaiser ◽  
Hafiz Shafqat Kharal ◽  
Adnan Safdar

The implementation of stranded conductors in flexible gas-insulated transmission lines (FGILs) requires field intensity minimization as well as field irregularity suppression in order to avoid dielectric breakdown. Moreover, the interdependence of enclosure and conductor sizes of FGILs regarding electrostatic aspects necessitate critical consideration of their dimensional specifications. In this research, geometric and electrostatic field optimization for FGILs regarding stranded conductors is performed. In addition, the effect of conductor irregularity on field dispersion is analyzed, and a semiconducting film (SCF)-coated stranded conductor is proposed as a potential candidate for FGILs. Considering the performed optimized design, an 11 kV scaled-down model of a 132-kV FGIL was also fabricated in order to practically analyze its electrostatic and dielectric performances regarding simple and SCF-coated stranded conductors. Simulation and experimental investigations revealed that the SCF-coated stranded conductor significantly minimized the field irregularity of the FGIL along with improving in its dielectric breakdown characteristics.


Author(s):  
Kent L. GEE ◽  
Eric B. WHITING ◽  
Tracianne B. NEILSEN ◽  
Michael M. JAMES ◽  
Alexandria R. SALTON

1997 ◽  
Vol 40 (4) ◽  
pp. 349-356
Author(s):  
V. I. Tokatly ◽  
V. A. Tishchenko ◽  
V. I. Luk'yanov

Ultrasonics ◽  
2018 ◽  
Vol 82 ◽  
pp. 379-389
Author(s):  
Aurélien Baelde ◽  
Jérôme Laurent ◽  
Pierre Millien ◽  
Richard Coulette ◽  
Warida Ben Khalifa ◽  
...  

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