Analytical fault impact-model for the electrical grid Silvio Alessandroni, Maurizio Paschero and Francesco Nicotra Menéndez Eur. Phys. J. Spec. Top., 231 9 (2022) 1701-1714 Published online: 28 March 2022 DOI: 10.1140/epjs/s11734-022-00510-z