PROCESS TESTING CONDITION OF INSULATION OF WINDINGS OF ELECTRIC MOTOR Russian patent published in 2003 - IPC

FIELD: electrical engineering, diagnostics of insulation of windings of electric motor. SUBSTANCE: according to proposed process testing condition of insulation of windings of electric motor signal of rectangular form is fed to winding and decision on condition of insulation is made by diagnostic parameters. Amplitudes of first and second half-periods and values of first and second periods of subsiding oscillatory process which comparison with reference diagnostic parameters leads to conclusion about condition of insulation of windings are utilized in the capacity of diagnostic parameters. EFFECT: raised authenticity and accuracy of evaluation of diagnostic parameters. 4 dwg