00602naa#a2200169#i#450# EN\\bibl\98780 20251205211322.5 2072-9502 20250515b2025####ek#y0engy0150####ca RU Modeling and experimental research operation of the relay protection trigger to increase security electrical networks Journal article Astrakhan Astrakhan State Technical University 2025 12 с. Journal article local Электрические машины. 621.313 Chaka Igor' Yur'evich vestnik.astu.org