“…The analysis of studies [8][9][10] in operability and operational quality of an AM in various modes of operation, under various external effects, shows that, during operation, the AM service life is greatly affected by the supply voltage quality (more than 60% of failures), vibration, temperature and humidity of the ambient air (more than 20% of failures), the electric motor loading. The above factors determine the AM operational reliability, but only in aggregate, as the failure statistics [11,12] shows that electric motor failures are most often associated with several factors.…”