Amir Abbas Shayegani Akmal

A New Approach to Improve the Accuracy of Pd Location in Power Transformers’ Winding by Obtaining Sectional Winding Transfer Functions (Swtfs) and Learning Vector Quantization (Lvq) Network Model Open

Amir Mohammadirad, Amir Abbas Shayegani Akmal · 2024

Lifetime Evaluation of Outdoor Polymeric Insulators Based on Statistical Condition-Assessment Methods Open

Navid Fahimi, M. Goudarzi, Amir Abbas Shayegani Akmal · 2024

Evaluation of Long-Term Boiling Water Immersion as Artificial Aging Test of Silicone Rubber Insulators Open

Mohammad Akbari, Amir Abbas Shayegani Akmal · 2022

Our country IRAN have long coastal area with length of more than 1830 km. Utility companies with 30 years of experience in using polymeric insulators in this very heavy polluted area. Operational history in these areas indicates many insul…

Transient overvoltage analysis in the medium voltage substations based on full-wave modeling of two-layer grounding system Open

Mohammad Ghomi, Filipe Faria da Silva, Amir Abbas Shayegani Akmal, Claus Leth Bak · 2022

In this paper, a comprehensive investigation of substation grounding soil structure effects on switching/lightning transients is presented. The full-wave computational solution Method of Moments (MoM) is adopted to solve Maxwell's equation…

Online non‐invasive evaluation of arcing time for condition assessment of high‐voltage gas circuit breakers Open

Milad Mohammadhosein, Kaveh Niayesh, Amir Abbas Shayegani Akmal, Hossein Mohseni · 2021

Online non‐invasive methods to assess circuit breaker condition have been under consideration in recent years. The combination of the arcing time and the short‐circuit current recorded by protective relays can be utilized to assess the deg…

LORENTZ FORCE CONTRIBUTION TO THUNDERSTORM'S ELECTRICAL CHARACTERISTICS Open

Babak Sadeghi, Amir Abbas Shayegani Akmal, Farahnaz Taghavi · 2021

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