Volume 21, Issue 3 (September 2025)                   IJEEE 2025, 21(3): 3360-3360 | Back to browse issues page

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Abouhosseini Darzi M, Mirzaie M, Shayegani Akmal A A, Rahimpour E. Calculation and Analysis of the Electric Field of the OIP Bushings under Internal Humidity and Surface Polluted Conditions using FEM. IJEEE 2025; 21 (3) :3360-3360
URL: http://ijeee.iust.ac.ir/article-1-3360-en.html
Calculation and Analysis of the Electric Field of the OIP Bushings under Internal Humidity and Surface Polluted Conditions using FEM
Mohammad Abouhosseini Darzi , Mohammad Mirzaie , Amir Abbas Shayegani Akmal , Ebrahim Rahimpour
Abstract:   (178 Views)
Bushings are one of the most important components of electrical equipment such as power transformers, reactors, capacitors. Most of the installed bushings have Oil-Immersed Paper (OIP) insulation structure. Bushing failure is caused by various reasons such as poor manufacturing process, overloading and also poor installation process, but moisture ingress is one of the main reasons of OIP bushing defect during its operation. In this paper, the electric field distribution of OIP bushings in multiple situations are simulated and effects of moisture distribution are analyzed. The simulations are stablished in polluted and clean surfaces of the studied bushing and done by COMSOL Multiphysics Software. The results show that non-uniform moisture distribution has a significant effect on electric fields of OIP insulation. This effect strongly increases with increasing the pollution on the external insulator of the bushing.
Keywords: Finite Element Method (FEM), Moisture, OIP Bushing, Pollution, Transformer
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Type of Study: Research Paper | Subject: Diagnostics Techniques
Received: 2024/07/09 | Revised: 2025/05/07 | Accepted: 2025/03/17
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© 2022 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.