Experimental Investigation of Factors Affecting the Breakdown Voltage of Different Synthetic Insulating Materials.

Authors

Y. A. Abed, Electrical Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.
T. D. Eish, Electrical Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.
S. A. Hassan, Electrical Engineering Dept. of Menoufia University, Menoufia, Egypt.
L. A. Elzeftawy, Electrical Engineering Dept. of Menoufia University, Menoufia, Egypt.

Corresponding Author

A. Abed, Y.

Subject Area

Electrical Engineering

Article Type

Original Study

Abstract

This paper reports an experimental investigation of the breakdown henomena of perspex, bakelite and teflon as a synthetic insulating materials immerged in transformer oil. These samples of insulations were subjected to A.C. and D.C. voltages increased gradually to that limit at which breakdown takes place. Here also the effect of poth material thickness and electrode diameter were investigated beside the effect of ambient temperature. An attempt has been made to explain the decrease in breakdown voltage due to the increasing of ambient temperature. A mathematical expression was proposed to give the breakdown voltage of perspex, bekelite and teflon in terms of ambient temperature, electrode diameter and thickness of material. The constants related to each material and type of the applied voltage.

Recommended Citation

A. Abed, Y.; D. Eish, T.; A. Hassan, S.; and A. Elzeftawy, L. (2022) "Experimental Investigation of Factors Affecting the Breakdown Voltage of Different Synthetic Insulating Materials.," Mansoura Engineering Journal: Vol. 9 : Iss. 2 , Article 1.
Available at: https://doi.org/10.21608/bfemu.2022.217708