2026. ELECTROMECHANICAL TRANSITION PROCESS CAUSED BY THE SUDDEN CHANGE IN THE RESULTANT TORQUE OF ACTIVE MECHANICAL FORCES ON THE SHAFT OF THE THREE-PHASE SYNCHRONOUS ALTERNATOR, INITIALLY IN PERMANENT SYNCHRONOUS OPERATION UNDER ELECTRICAL LOAD. ELECTRICAL MACHINES, MATERIALS AND DRIVES — PRESENT AND TRENDS. 21, 1 (Feb. 2026), 15–26. DOI:https://doi.org/10.36801/rvf4gg80.