Asynchronous electric drive with frequency control of angular velocity the change in the frequency of the supply voltage of an induction motor affects.
Tolerances and landings esdp application for smooth cylindrical and flat joints 126.96.36.199.1. general provisions the interchangeability of parts by.
Coupling selection the main data for selecting a coupling are: • nominal diameters of the shafts to be connected, • rated torque, • speed and operating.
Adjusting the speed of the ad in the cascade switching circuits in powerful electric drives with ad, slip losses are significant, therefore it is.
Drawing a general view select the main image and the number of images. when developing a drawing of a general view of a product, images are performed in.
Models of the mechanical part of the electric drive in the design and engineering calculations, the mechanical part of the drive is replaced by a model.
Frequency inverters with direct coupling the basis of the power circuit of a frequency converter with direct coupling is a reversible thyristor.
Splined connections with triangular profile splined joints with a triangular profile (figure 4.10) are used in fixed joints of thin-walled bushings or.
Independent excitation dcs modes in fig. 4.4 shows the scheme of inclusion of the dct of independent excitation, in the armature circuit of which an.
Conventionalities and simplifications in order to reduce the complexity of developing drawings or reducing the cost of paper for their design standards.
Closed-loop electric drive systems dc drives the choice of the functional scheme of the electric drive of most production mechanisms is determined by the.
Frequency control of an induction motor with vector ir compensation if the voltage vector is formed by the vector addition of the voltage of the task and.
Gears general according to the location of the axles, the wheels in space are distinguished: • cylindrical gears in which the axles of the wheels are.
Schematic diagram the schematic diagram defines the complete composition of the elements of electrical devices of the electric drive and the connection.
Dc motor speed control according to the time principle the scheme for starting a dc motor of independent excitation by the time principle is shown in.
Basic rolling bearings installation the design of the bearing units must provide the following: • the possibility of thermal expansion (extension) of the.
Heating and cooling of engines. thermal motor model the analysis of the thermal state of the engines allows us to estimate the degree of its power.
Dc drives with transistor converters the most effective ways to regulate the speed of a dc motor are associated with a change in the voltage of its.
Smoothing friction surfaces lubricants lubricants are used to reduce the wear of friction surfaces, increase the efficiency of machinery and machines,.
Power engineering of electric drive power drive performance the process of transmission and conversion of energy is accompanied by its losses. the power.