The AC drive is an important component and the most common element of any manufacturing process. A particularly serious task is the proper assessment of the AC drive’s technical condition, as its failure can cause problems for entire units and complexes of industrial enterprises. At present, there are several approaches either to determine electric drives’ condition or to find certain defects. Frequently, these methods require the installation of additional equipment that exceeds the price of the electric drive by several times. In this work, a simple approach is proposed. It includes the use of a diagnostic curve to assess the condition. This diagnostic curve is produced from the measurement results of the current sensors on the drive. Based on the Park vector modification, this is a simple and affordable way to obtain real-time information. The obtained curve can be used for the following purposes: directly for condition assessment by visual monitoring, as a sign for diagnostic systems built on artificial intelligence methods, for dynamic tuning of the drive control system. The article gives the algorithm for obtaining the diagnostic curve, showing its efficiency for model and field experiments. In model experiments, the faults in the rotor and stator of the drive were simulated; in field experiments, the state was analyzed by changing the load on the motor.

Qualification of employees who operate technological processes directly influences the safety of production. However, the employees’’ qualification cannot completely exclude human factor. Today, there are many technologies that can minimize or eliminate human factor impact on production safety ensuring. The augmented reality technology is an example of this technology. Nowadays, the augmented reality technologies and industrial technologies integration process moves to a new level of development. These technologies have huge experience, which has been accumulated in a long period of time. -This new level turns available by this experience combination and integration; it brings additional profit to the enterprise and can be a basis for completely new technologies. This paper shows an example of combination of augmented reality technology and oil pumps maintenance. For researching of efficiency of augmented reality system for oil pump maintenance, the laboratory unit with Grundfos vertical electric centrifugal pump (CR15-4 A-FGJ-AE-HQQE) was used. The laboratory unit is a physical model of one of the continuous oil processes. The oil pump of this laboratory unit is object of this research. The algorithm of servicing of oil pump was developed. The test of system and algorithms were carried out with four groups of people: the first one had only instructions to use on hand, the second one only used the internal recommendations of the system, the third one used only the help of an expert, and the fourth used internal recommendations and, if necessary, contacted the expert. The results show the efficiency and actuality of augmented reality technology for maintenance of industrial equipment, especially for the equipment operated in remote Arctic conditions.

The extraction of oceanic ores will make it possible to extract a complex of strategic metals: manganese, nickel, copper, cobalt, molybdenum, zinc. The following materials are considered as cost-effective mineral raw in the ocean: manganese nodules – MN (Mn, Ni, Cu, Co), cobalt-rich manganese crusts – CMC (Co, Mn, Ni), deep-sea polymetallic sulfides – DPS (Cu, Zn, Au, Ag). As an example, the Indian concept of deepwater development is described, which proposes to use the pipeline as a transport of minerals from the bottom. The calculation of the pipeline transportation system with the indication of shortcomings is given. As an alternative, it is proposed to use a lift of a self-propelled device for minerals on a cable made of special material. The article presents a device for deep-sea mining of MN with pressure drop chambers. The method of application of this device for collecting CMC is replacing the pressure drop chambers with the clamshell type device. The grab must be made of strong and at the same time light material and can be equipped with a hydraulic hammer for preliminary destruction. Elements of the shock system of the hydraulic hammer must also be adapted to the conditions of deep-sea mining by using special metal alloys for manufacturing. The destroyed mass is temporarily stored in a hopper mounted on a collector, which can be made of nylon mesh stretched between plates of titanium alloys. The calculation of the performance of the device for deep-sea mining from is presented.