Electric Field Modelling in Gas-Insulated Substation for Analysis of Conditions for Partial Discharge Phenomena

• Authors: B. Florkowska , P. Zydroń , A. Jackowicz-Korczyński
• Languages of publication: EN

Abstracts

EN

The paper refers to diagnostics problems connected with the presence of partial discharges in gas-insulated substation. The basic stimulus for partial discharges generation is local, high value electric field, greater than the inception one. The numerical simulations of the electric field distribution in the part of the gas insulating system and in the vicinity of the metallic protrusion located on high voltage conductor are presented. Such defects are often present in SF₆ insulated constructions and are the cause of a local increase of the electric field. Theoretical analysis of physical mechanism of partial discharges initiation and development in the case of micro-needle type defects is described.

Keywords

EN

51.50.+v; 52.80.-s; 84.70.+p; 41.20.-q

Discipline

• 84.70.+p: High-current and high-voltage technology: power systems; power transmission lines and cables(for superconducting cables, see 84.71.Fk)
• 51.50.+v: Electrical properties (ionization, breakdown, electron and ion mobility, etc.)(see also 52.80.-s Electric discharges in physics of plasmas)
• 41.20.-q: Applied classical electromagnetism(for submillimeter wave, microwave, and radiowave instruments and equipment, see 07.57.-c)
• 52.80.-s: Electric discharges(see also 51.50.+v Electrical properties of gases; for plasma reactions including flowing afterglow and electric discharges, see 82.33.Xj in physical chemistry and chemical physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 3
• Pages: 319-325

Dates

published

2015-09

received

2015-01-03

(unknown)

2015-08-06

Contributors

author

B. Florkowska

• AGH - University of Science and Technology, Department of Electrical and Power Engineering, al. Mickiewicza 30, 30-059 Kraków, Poland

author

P. Zydroń

• AGH - University of Science and Technology, Department of Electrical and Power Engineering, al. Mickiewicza 30, 30-059 Kraków, Poland

author

A. Jackowicz-Korczyński

• Stator Service Polska, al. Roździeńskiego 188, 40-203 Katowice, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.128.319