What is another word for rotary converter?
Pronunciation: [ɹˈə͡ʊtəɹi kənvˈɜːtə] (IPA) 
A rotary converter is a type of electrical equipment that converts alternating current (AC) to direct current (DC). There are several other terms used to describe rotary converters. These include motor-generator set, rotary transformer, and rotary phase converter. Motor-generator set is used to describe a type of rotary converter that uses a motor to drive a generator. A rotary transformer is a type of rotary converter that transfers power from one AC source to another. Rotary phase converter is another common term used to describe rotary converters that are used to convert single-phase power to three-phase power. The various terms used to describe rotary converters are used interchangeably, but they all refer to the same basic type of equipment.
