FIELD: engines and pumps.
SUBSTANCE: at least part of the fluid medium is compressed in the compressor driven by an electric motor. The compressor includes adjustable inlet guide vanes, the rotation angle of which can be adjusted. The electric motor is supplied with electric power from the mains, and the signal indicating the mains state is controlled. The necessity of additional load reduction is determined automatically by this signal by means of comparing the received signal with a predetermined criterion. The adjustable inlet guide vanes are automatically adjusted when the predetermined criterion is met and the additional load reduction is necessary. The compressor and the method of its operation may be used as part of a system for producing the liquefied hydrocarbons flow and / or during the production of liquefied hydrocarbon flow. The compressor may be a refrigerant one, and the fluid medium may be a refrigerant.
EFFECT: decreasing the compressor load.
19 cl, 2 dwg
