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Haitham Issa
Zarqa University

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Investigating and calculating the temperature of hot-spot factor for transformers Khalid Yahya; Hani Attar; Haitham Issa; Jamal Ali Ramadan Dofan; Nassim A. Iqteit; Adel E. M. Yahya; Ahmed Amin Ahmed Solyman
Indonesian Journal of Electrical Engineering and Computer Science Vol 30, No 3: June 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v30.i3.pp1297-1307

Abstract

This article explores the measurement of temperature in transient states, utilizing the principles of heat transfer and thermal-electrical metaphor. The study focuses on the nonlinear thermal resistances present in various locations within a distribution transformer, while taking into account variations in oil physical variables and temperature loss. Real-time data obtained from heat run tests on a 250-MVA-ONAF cooled unit, conducted by the transformer manufacturer, is used to verify the thermal designs. The observations are then compared to the loading framework of the IEC 60076-7:2005 system. The findings of this research provide a better understanding of temperature measurement in transient states, particularly in distribution transformers, and can be applied to the design and development of more efficient and reliable transformer systems.
Co-Authors Adel E. M. Yahya Ahmed Amin Ahmed Solyman Hani Attar Jamal Ali Ramadan Dofan Khalid Yahya Nassim A. Iqteit