Creation of a mathematical model to identify short circuits in power lines A.N. Alyunov, O.S. Vyatkina, I.G. Akhmetova, B.E. Umirzakov and D.A. Tashmukhamedova E3S Web Conf., 124 (2019) 02019 Published online: 25 October 2019 DOI: 10.1051/e3sconf/201912402019