Kassim Rasheed Hameed. ZIG-ZAG Grounding Transformer Modeling for Zero-Sequnce Impedance Calculation Using Finite Element Method. DJES [Internet]. 2015 Sep. 1 [cited 2024 Nov. 25];8(3):63-87. Available from: https://mail.djes.info/index.php/djes/article/view/299