00892naa#a2200217#i#450# EN\\bibl\126434 20260630044430.2 2223-9987 20260629b2026####ek#y0engy0150####ca RU Identification of Arc Processes in the Contact Network of Urban Electric Transport by Methods of Oscillographic Monitoring and Spectral Processing Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2026 7 с. Journal article local Релейная защита. Селективная защита. 621.316.925 Agunov Aleksandr Viktorovich Scherban' Aleksandr Vladimirovich Arhipov Dmitriy Dmitrievich Kuznecov Anton Alekseevich Simonenko Kirill Dmitrievich atjournal.ru