The analysis of the frequency-controlled drive currently used on the technological equipment of the Volgogradneftemash enterprise is presented. Taking into account the peculiarities of the pumping and ventilation equipment installed at the enterprise, the principles of regulation are determined and the influence of a frequency-controlled drive on the quality of electrical energy is evaluated. The negative influence of the frequency-controlled drive of ventilation and pumping equipment on individual indicators of electricity quality was noted. In order to reduce this influence, an energy-saving device has been proposed for installation. The issues of the possibility of using an energy-saving device at the facility are considered, as well as an analysis of its efficiency during operation from the point of view of improving the quality of electricity in the internal power supply system of the Volgogradneftemash open Joint stock company is carried out. The use of the device is an effective solution, since it leads to high energy efficiency of technological equipment by reducing current surge, suppression of higher harmonics and electromechanical interference.

Keywords: electric drive, ventilation system, frequency-controlled drive, quality of electrical energy, energy saving device

The article describes in detail the algorithm for constructing a mathematical model that allows you to describe the process of processing a spherical surface, provides an analysis of the change in the radius of the cutter, which allows you to choose the optimal cutting conditions and create conditions for automation of the process.

Keywords: Software, process automation, spherical surface, spherical surface treatment.

The mathematical model, the design of the milling head and the method of processing the spherical surface are considered in the article, the calculation formulas for determining the tuning dimensions and diameter of the processed sphere are given.

Keywords: Software, process automation, spherical surface, solid cutting, cutting, spherical surface treatment

The article deals with the results of the practical implementation of the method of milling deep grooves of the turbine rotor.

Keywords: Turning, milling, disk milling, deep grooves

In this paper we investigate the signal delay in interconnection based on carbon nanotubes. The analysis of the electrical parameters of the equivalent circuit interconnection and the dependence on the length of the delay of the signal beam nanotubes. Define a set of parameters that characterize the features of the functioning of the carbon nanotubes as interconnects. Compiled by the equivalent model of the interconnect based on carbon nanotubes and determined it electrically. Based on the functions of the signal at the output of the interconnect simulated signal delay in interconnection.

Keywords: Nanotube, delay, signal interconnect circuitry