Topicality. For a regulated asynchronous electric drive, semiconductor voltage converters, in particular thyristor regulators, are often used, for which the technical literature does not pay much attention to the performance test. To overcome this problem, the results of experimental studies of the operating characteristics of an adjustable three-phase asynchronous electric actuator of an axial fan with a control station "Climatic-1" are presented. Analysis of recent research and publications. For low-power asynchronous motors with a short-closed rotor it's relatively easy to adjust the speed of the voltage change on the stator, because they have a soft mechanical characteristic on the working part. The most simple and inexpensive for the specified regulation are regulators of amplitude of supply voltage of electric drives with fan load. The purpose of the study is to determine the performance of a low-power regulated asynchronous electric actuator of a vent installation with a thyristor voltage regulator based on phase-pulse control. Materials and methods of research. The analysis of the performance of a regulated electric drive under the chosen control method was carried out using the provisions of the theory of electric drive and statistical methods for processing the results of research on a laboratory installation. Research results. For the analysis of characteristics, a laboratory installation of a three-phase asynchronous electric drive, consisting of an asynchronous engine AIRP80-A6U2, which drives the axial fan VO and the control station "Climate-1. The engine has a higher resistance to the rotor winding, which causes an increased slip at the nominal torque, increased starting torque and low multiplicity of starting current. Thus, this given engine with fan load allows adjustment of the frequency of rotation in a wide range of changes will lead the second voltage. line voltage on the electric motor changed by using voltage thyristor converter station "Klimatyka-1" phase-controlled pulse ranges from 120 to 380 V. To create the braking torque on the shaft of the asynchronous engine under study, a balancing machine was used, which is a load generator of direct current with independent excitation, whose bed can be rotated in standing bearings. The angle of rotation of the bed depends on the load and is limited to a special elastic device. An arrow is arranged on the body of the balancing machine, which shows the angle of rotation of the seat relative to the fixed scale, depending on the size of the brake torque MG. For the convenience of measuring the brake torque of the scale graded in Н∙m. In order to ensure the regulation within wide limits, the excitation current of the generator power supply of the excitation winding is provided by an adjustable DC source. The loading machine was set at a moment that would hold the engine speed according to a predetermined adjustment characteristic. As can be seen from the adjustment characteristic of the drive control, the adjustment range is D = 6:1. According to the received power characteristics of the electric drive with the regulation of the change in the voltage supply, it is established that the efficiency and cosφ with decreasing supply voltage are reduced. The decrease in efficiency is affected by an increase in the amount of slip at a decrease in speed, and lowering cosj occurs due to a change in the ratio of reactive and active component in the electric circuit. The researches have established that with a decrease in the voltage of the electric drive, the difference between consumed full S1 and active P1 power increases, which affects cosφ. Conclusions and perspectives The regulatory characteristic n* = f(U*) has a smooth character. The adjustment range is D » 6: 1. With a decrease in the power supply of the electric drive, the difference between consumed full S 1 and active P 1 power increases, which affects the reduction of cosφ, and an increase in the value of slip - reduces the amount of efficiency.