The poor energy security worldwide and especially at the national level, requires all entities to look for effective solutions to rectify the current situation by turning to renewable energy sources and energy efficiency. The purpose of this paper is to study the wind energy potential and wind characteristics for second-level administrative-territorial entities (districts) from the Central Development Region, Republic of Moldova, which includes 13 districts: Anenii Noi, Călărași, Criuleni, Dubăsari, Hâncești, Ialoveni, Nisporeni, Orhei, Rezina, Străseni, Șoldănesti, Telenesti and Ungheni. The Wind Atlas Method accompanied by the special Wind Atlas Analysis and Application Program, data on wind speed and direction measured by the Technical University and the orographic map of the Republic of Moldova was used for the research. For each individual district there were: calculated and presented the maps of the average annual wind speed and wind power density at the height of 100 m above ground level; classified the district territory according to the power density value and also calculated the theoretical wind power possible to install. Following the calculations made for the thirteen analyzed districts, it was found that the average annual wind speed at the height of 100 m is between 6.70 and 7.40 m/s, and the wind power density -between 287 and 398 W/m2. The highest average annual speed equal to 7.40 m/s and windpower density equal to 398 W/m2 was identified in Nisporeni district and the lowest inIaloveni, Rezina, Șoldănești and Dubăsari districts.

This paper focuses on the determination of the characteristics of refusals in low voltage electrical distribution systems. In order to solve this problem, the phenomena of occurrence of refusals in low-voltage electrical distribution systems, conditioned by different influencing factors, processed and mathematically modelled. The main results of the research consist in establishing the static characteristics of the refusals, the mathematical models that determine the occurrence of the cause phenomena and the parameters that characterize the distributions of the refusals, depending on the occurrence per system, depending on the occurrence per season, depending of interruptions duration and the number of affected consumers. The significance of the results obtained consists in solving a number of problems faced by the operating services of electrical distribution systems, concerning the assurance of reliability of operation, providing the possibility of forecasting and preventing the occurrence of the phenomena of occurrence of refusals, which enable the justified planning of prophylactic measures and ensuring the reliability level.

The study is focused on three districts in the northern region of the Republic of Moldova – Briceni, Edinet and Ocnita. The maps were calculated and presented in terms of average annual wind speed and wind power density at a height of 100 m above ground level, wind rose and Weibull wind speed distribution. In the calculations performed for the three analyzed districts it was found that the average annual wind speed is between 6.84 and 7.35 m / s, and the wind power density – between 450 and 593 W / m2. The highest annual average speed equal to 7.35 m / s was identified in Ocnita district. At the same time, having the maps of the wind speed and the power density, the convenient locations for the construction of the wind farms can be selected. For each district involved in the study, a location with a pronounced wind potential was identified, recommended for the location of any wind farms.

The paper presents a detailed analysis of the external stakeholders' perception regarding the quality of the “Electromechanical Systems Engineering” study program at the Technical University of Moldova. Based on a structured questionnaire applied to experts from industry, research, and education, the study highlights relevant aspects concerning curriculum adequacy, teaching methods, and the relevance of the developed competencies. The results reveal a predominantly positive appreciation of the program, while also emphasizing the need for modernization of practical content and educational resources.

The main scope of this research was to complete and validate the analysis of stator winding topologies of six-phase AC machines using the winding quality factor by determining fault tolerance and validating it through experimental tests. This paper proposes a unified and practical methodology for evaluating the performance of stator windings in six-phase induction machines, with emphasis on magnetic field quality and fault-tolerant operation. The approach combines analytical modeling of the magnetomotive force (MMF) with its graphical representation using the MMF polygon, enabling an efficient assessment of harmonic content through a global indicator, referred to as the winding quality factor. Several representative winding topologies are analyzed within a common framework, including single-layer and double-layer configurations with full-pitch and short-pitch coils, suitable for generating homologous series of six-phase machines. The study considers both normal operating conditions and post-fault regimes, particularly operation with a single three-phase set. The results reveal the strong influence of winding topology on harmonic distortion and overall machine performance, highlighting the trade-offs between magnetic field quality and fault tolerance. It is shown that appropriate winding design can reduce spatial harmonics and improve robustness under degraded operating conditions. The theoretical findings are validated through experimental investigations, demonstrating good agreement between analytical predictions and measured data. A parallel analysis was performed between the theoretical findings and experimental data, and the results conform to the authors’ expectations.

The paper presents the development and implementation of an automated testing stand designed for analyzing the performance of traction electric motors. The proposed system uses the NI cRIO-9057 platform with modular extension boards, in combination with industrial voltage, current, and torque sensors. The software application was developed in the LabVIEW environment and includes a PC interface, synchronous data acquisition, and spectral analysis. Experimental results obtained on a three-phase asynchronous motor validate the full functionality of the test stand, providing a scalable solution for testing electric drive systems.