Effect of partial discharges on the operating condition of high-voltage insulators A. V. Golenishchev-Kutuzov, V. A. Golenishchev-Kutuzov, D. A. Ivanov, G. D. Mardanov, A. V. Semennikov and L. V. Ahmetvaleeva E3S Web Conf., 124 (2019) 03001 Published online: 25 October 2019 DOI: 10.1051/e3sconf/201912403001