DECREASE IN THE ACOUSTIC NOISE OF THE HYDRAULIC STAND AT THE EXPENSE OF CONTROL THE FREQUENCY OF ROTATION OF THE ELECTRIC DRIVE OF THE PUMP AND APPLICATION OF MUFLERS OF HYDRODYNAMIC NOISE
In article are devoted of methods of decrease in own noise of the hydraulic stand by the regulations of productivity of the pump unit based on the organization by control of frequency rotation of the electric drive and application of mufflers of pulsations of a stream are considered. It is offered to organize remote control of the frequency of rotation of a shaft of the three-phase asynchronous short-circuited electric drive by means of the specialized frequency converter intended for controling of electric motors as a part of drives of centrifugal pumps and to use on a measuring site when carrying out tests q mufflers of hydrodynamic noise.