This paper describes the experimental study of a synchronous magnetoelectric generator which magnetic system is based on the asynchronous motor: the stator of magnetoelectric generator is made up of induction machine with a number of poles pairs 2p=12, a cylindrical inductor (rotor) is composed of permanent magnets distributed on the rotor surface. The modeling of magnetic system was carried out using finite element analysis based on the professional software Elcut 6.0 and Ansys 18. For testing magnetoelectric generator, the laboratory stand was designed to ensure the adjustment of the inductor rotational speed. It includes the following elements: asynchronous motor, frequency converter, magnetoelectric generator, rectifier, units of control and measurement of electrical conditions of generator welding and energy parameters. According to the experimental study, the time dependence of current and voltage in the system induction motor-magnetoelectric generator was. Shown The characteristics of the generator idling and the external characteristics of the active load and fixed rotational speed of the shaft from 300 rpm to 700 rpm were obtained. During the generator development, a technical solution to minimize the contraction of the inductor at start-up was proposed. Besides, the winding connection scheme of generator was proposed to decrease the reaction of anchor and increase the output generator voltage. A certificate of acceptance for the presented magnetoelectric generator No. 2016118977 is received.