PECULIAR FEATURES OF MATHEMATICAL MODELING OF ELEMENTS OF THE BRUSH-COMMUTATOR UNIT OF THE ELECTRIC TRACTION MOTOR TAKING INTO ACCOUNT POSSIBILITIES OF THE CONTACT FAILURE Language English Read more about PECULIAR FEATURES OF MATHEMATICAL MODELING OF ELEMENTS OF THE BRUSH-COMMUTATOR UNIT OF THE ELECTRIC TRACTION MOTOR TAKING INTO ACCOUNT POSSIBILITIES OF THE CONTACT FAILUREРусский