INSULATION DIAGNOSIS METHOD, INSULATION DIAGNOSIS SYSTEM, AND ROTATING ELECTRIC MACHINE

摘要

PROBLEM TO BE SOLVED: To identify the type of an insulation defect in a diagnosis target device.SOLUTION: A signal generated from a diagnosis target device is measured, and a frequency or a frequency band manifesting a maximum amplitude strength is detected from the measured signal (steps 0702, 0704, 0706). The insulation defect type in the diagnosis target device is identified based upon the detected frequency or frequency band manifesting the maximum amplitude strength.