شبكة التخطيط العمراني بسم الله الرحمن الرحيم
للكاتبين :
Osama El-Sayed Gouda1 And Ali Hassan Ibrahim Mansour2
1Faculty of Engineering,Cairo University,Egypt
2Faculty of Engineering,Al-azhar University Qena ,Egypt
ABSTRACT
Several efforts have been made over the past years to study the electrical, physical and
chemicals properties of insulating oils. Among those efforts there is a property of natural aged
oils (real oil samples corresponding to the scale of industrial transformers). This is
investigated in this paper to determine the life time of naturally aged oil with different applied
electric field and different shapes. This paper presents an experimental work to study the life
time of transformer oil as a function of conduction current. In this paper, the electrification
current in the tested oil is measured for different temperatures. Finally, tests have been carried
out on oil samples under testing with different services period to determine the relation
between breakdown voltage and the oil life time under uniform and nonuniform fields.