Correlation Between Ageing Condition and Flow Electrification Charge in Transformer Mineral Oil

Mirela Stefania Vihacencu; Alexandra Ciuriuc; Laurentiu Marius Dumitran; Petru V. Notingher

doi:10.1109/OPTIM.2012.6231822

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Correlation Between Ageing Condition and Flow Electrification Charge in Transformer Mineral Oil

Mirela Stefania Vihacencu, Alexandra Ciuriuc, Laurentiu Marius Dumitran et Petru V. Notingher

PROCEEDINGS OF THE 13TH INTERNATIONAL CONFERENCE ON OPTIMIZATION OF ELECTRICAL AND ELECTRONIC EQUIPMENT, VOLS 1-5, pp.118-123

Proceedings of the International Conference on Optimization of Electrical and Electronic Equipment

01/01/2012

DOI: https://doi.org/10.1109/OPTIM.2012.6231822

Résumé

Engineering

Engineering, Electrical & Electronic

Science & Technology

Technology

The flow electrification of mineral oil produces local electric discharges which may facilitate the damage and worsen the physico-chemical properties of the electrical power transformer insulation systems. This paper presents a study concerning the influence of the mineral oil ageing condition on the flow electrification phenomenon. The flow electrification current has been measured with a spinning disk system on unaged and thermally aged at T = 135 degrees C mineral oil samples, for different time durations. In order to evaluate the degradation condition of the oil samples, the values of the complex permittivity components, loss factor and electric conductivity components were determined. The results have revealed the fact that the ageing of mineral oil worsens its dielectric properties and favors the flow electrification phenomenon, respectively the surface charge density at the oil-pressboard interface increases with the ageing time.

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Détails

Titre: Correlation Between Ageing Condition and Flow Electrification Charge in Transformer Mineral Oil
Créateurs - sans rôle: Mirela Stefania Vihacencu - Univ Politehn Bucuresti, Lab Elect Mat, Bucharest, Romania
Alexandra Ciuriuc - Univ Politehn Bucuresti, Lab Elect Mat, Bucharest, Romania
Laurentiu Marius Dumitran - Univ Politehn Bucuresti, Lab Elect Mat, Bucharest, Romania
Petru V. Notingher - Univ Politehn Bucuresti, Lab Elect Mat, Bucharest, Romania
Contributeurs - sans rôle: L R Clotea
M Cernat
Détails de publication: PROCEEDINGS OF THE 13TH INTERNATIONAL CONFERENCE ON OPTIMIZATION OF ELECTRICAL AND ELECTRONIC EQUIPMENT, VOLS 1-5, pp.118-123
Publications en série: Proceedings of the International Conference on Optimization of Electrical and Electronic Equipment
Éditeur: Transilvania Univ Press-Brasov
Nombre de pages: 6
Note de subvention: POSDRU/89/1.5/S/62557; POSDRU/88/1.5/S/60203; POSDRU/107/1.5/S/76903 / Sectoral Operational Programme Human Resources Development of the Romanian Ministry of Labour, Family and Social Protection through the Financial Agreement
Identifiants: 99139384509311
Unité académique: Institut d'Electronique et des Systèmes - IES
Langue: English
Type de ressource: Conference proceeding