Measurements of physicochemical and electrical properties of insulating liquids

• Autorzy: Zdanowski Maciej

Identyfikatory

DOI

10.21008/j.1897-0737.2019.98.0016

• Konferencja: Computer Applications in Electrical Engineering (15-16.04.2019 ; Poznań, Polska)
• Języki publikacji: EN

Abstrakty

EN

This paper provides a comparative analysis of key physicochemical and electrostatic parameters of Trafo En oil and Midel 7131® synthetic ester, changing in temperature and accelerated thermal ageing. The parameters tested included the density, kinematic viscosity, conductivity and relative electric permittivity. In addition to that, Electrostatic Charging Tendency (ECT) tests of those fluids were performed in a flow system using cellulose and aramid paper pipes. The effect of liquid flow velocity combined with temperature variations and accelerated ageing time on the streaming electrification current generated was determined. The relationship between the fluid electrification degree and measuring pipe material was also investigated.

Słowa kluczowe

EN

dielectric liquids; transformer insulation; electrical properties; streaming electrification

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Poznan University of Technology Academic Journals. Electrical Engineering
• Rocznik: 2019
• Tom: No. 98
• Strony: 181--193
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Zdanowski Maciej

• Opole University of Technology

Bibliografia

• [1] Perrier C., Beroual A., Experimental Investigations on Insulating Liquids for Power Transformers: Mineral, Ester, and Silicone Oils, IEEE Electr. Insul. Mag., Vol. 25, pp. 6–13, 2009.
• [2] Filliben S.A., New Test Method to Evaluate the Thermal Aging of Aramid Materials, Electrical Insulation Conference (EIC). 5-8 June, Annapolis, USA, pp. 449–453, 2011.
• [3] Tagaki T., Ishi T., et al., Reliability Improvement of 500kV Large Capacity Power Transformer, CIGRE S12, Session Paper 12-02, Paris, 1978.
• [4] Praxl G., Lemesch G., Static Electrification in Power Transformers, Report by JWG 12/15.13 Task Force 01, CIGRE WG 15.01, Boston, 1997.
• [5] Sierota A., Rungis J., Electrostatic Charging in Transformers Oils. Testing and Assessment, IEEE Trans. Dielectr. Electr. Insul., Vol. 1, No. 5, pp. 804–870, 1994.
• [6] Higaki M., Kako Y., et al., Static Electrification and Partial Discharges Caused by Oil Flow in Forced Oil Cooled Core Type Transformers, IEEE Trans. Power App. Syst., Vol. 98, No. 4, pp. 1259–1267, 1979.
• [7] Krause Ch., Knoll E., et al., Impact of AC-Fields on Dielectric Charging in a Full-Scale Power Transformer, 9th Int’1. Symp. High Voltage Engineering, Ref. 1080/1-1080/4, Graz, Austria, 1995.
• [8] Zdanowski M., Wolny S., et al., The Analysis and Selection of the Spinning Disk System Parameters for The Measurement of Static Electrification of Insulation Oils, IEEE Trans. Dielectr. Electr. Insul., Vol. 14, No. 2, pp. 480–486, 2007.
• [9] Zdanowski M., Streaming Electrification of Mineral Insulating Oil and Synthetic Ester MIDEL 7131®, IEEE Trans. Dielectr. Electr. Insul., Vol. 21, No. 3, pp. 1127–1132, 2014.
• [10] Zdanowski M., Wolny S., et al., ECT of Ethanol And Hexane Mixtures in The Spinning Disc System, J. Electrostatics, Vol. 65, No. 4, pp. 239–243, 2007.
• [11] Zdanowski M., Kędzia J., Research on the Electrostatic Properties of Liquid Dielectric Mixtures, J. Electrostatics, Vol. 65, No. 8, pp. 506–510, 2007.
• [12] Touchard G., Streaming Currents Developed in Laminar and Turbulent Flows Through a Pipe, J. Electrostatics, Vol. 5, pp. 463–473, 1978.
• [13] Washabaugh P., von Guggenberg P.A., et al., Temperature and Moisture Transient Flow Electrification Measurements of Transformer Pressboard/Oil Insulation Using a Couette Facility, IEEE 3rd Int’l. Conf. Properties and Applications of Dielectric Materials, Tokyo, Japan, Vol. 2, pp. 867–870, 1991.
• [14] Kędzia J., Electrostatic Properties of Aged Transformer Oil, IEEE Trans. Dielectr. Electr. Insul., Vol. 24, No. 2, pp. 175–185, 1989.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).