Akademik Veri Yönetim Sistemi
Sivas Cumhuriyet Üniversitesi Mühendislik Fakültesi Dergisi, cilt.1, sa.2, ss.89-93, 2023 (Hakemli Dergi)
With the development of today's technology, the loads connected to the electrical grid systems have diversified. Parallel to the developments in semiconductor technology, there has been a great increase in the number of nonlinear loads. Since the current and voltage characteristics of these loads do not change linearly, they cause harmonic generation in the systems. Harmonics cause extra energy loss, heating and insulation failures in the systems. Transformers, which are an important part of power systems, carry harmonic load current. Considering that transformers operate continuously in power systems, harmonics can lead to increased transformer losses, reduced transformer life, insulation failures, indirect arcing and even transformer explosions. In this study, a 3D electromagnetic transient model design of a power transformer, whose actual dimensions and design are known from factory data, was created using ANSYS@Maxwell program. After the model was created, the electromagnetic states of the transformer under various harmonic currents were analyzed using the Finite Element method with ANSYS@Simplorer and ANSYS@Maxwell programs. The effects of electromagnetic conditions and losses on the transformer are investigated.