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This paper presents a dedicated measurement system that allows data logging and analysis during experimental studies in a specialized high-voltage installation, powered by industrial grade voltage. The main aspects considered and discussed for the developed measurement system includes: means of galvanic insulation; required resolution and speed; measurement techniques. The paper presents a model of...
The article presents examples of solutions of miniature contact switches with a high degree of integration achieved through the use of measurements and respective analysis of magnetic field distribution with indication of singular points location. The investigated results obtained with the help of developed miniature contact sensor are discussed. On the basis of the results the appropriate conclusions...
Massive Open Online Courses (MOOCs) initiatives involve a huge amount of learners over the world proposing achievement of new knowledge or advancing in a given subject. A wide variety of MOOCs platforms hosting free courses are established offering different technology tools in support of teaching and learning. The paper presents a comparison of MOOCs platforms analyzing the available technology approaches...
The paper is an attempt for increasing the authenticity of forecasting the possible crisis situation in the production company via developing an algorithm for functioning of the sub-system “Forecasting possible crisis situation” as a sub-system for pro-active anti-crisis management of the enterprise.
In the article the impact of controlled metal mixing in an induction crucible furnace on energy parameters of carbonisation process in the production technology of synthetic cast-iron in the modernised melting unit is assessed on the basis of induction crucible furnace (ICF) with a capacity of 12 tons. It assesses the effectiveness of height ratio change to diameter ratio crucible of the induction...
Neural networks are the tools that can be used for the modelling for many systems. Thermoelectric cooling systems (TCS), generated on the basis of Peltier elements, are very widely used in the military industry and computing, which require smooth but precise thermostating of objects and volumes. The prediction of the parameters of the Thermoelectric cooling systems based on Peltier elements are very...
Stability of the plan parallel electrostatic systems, which can be used for electrostatic space protection from the Earth electrostatic field influence, is presented in this paper. In order to have an overview of behavior of suggested systems with small parameter deviation, deviation of certain dimensions were observed. The analysis showed that the proposed systems are highly efficient and stable...
The massive integration of wind power using power converters has imposed several challenges to the future power system. One of them is related to the decoupling effect of new power sources from the AC power grid, incapacitating their natural frequency response. This situation negatively affects the system frequency response (SFR). This aim of this paper is to establish the practical limits of synthetic...
The present paper contains information on development FPGA explorer system for digital image processing in real time. The paper presents a realization of Kalman filter for navigation. In the mobile tracking, system dynamic objects developed a simplified architecture, generating compensation change the dynamics of the observed object in response, expressed in the development of control explorer platform.
The paper describes relations between technical, nontechnical and total electric energy losses in power systems and presents an innovative methodology for their accurate assessment aiming at detection of thefts of electricity in the distribution networks.
Nominal voltage is a basic parameter of the electrical power quality. Essential tool for voltage regulation under load in power transformers is the use of on-load tap-changers (OLTC). Leading manufacturers of in the world apply widely vacuum interrupters in the construction of the diverter switches as main part of the OLTC. This provides significant advantages in operation but changes the process...
Ultrasonic Sensor Explorer (USE) is a cheap mobile robot for mapping. Instead of expensive laser sensor, it uses cheap ultrasonic sensor HC-SR04 with range up to 4 meters. The chassis of the robot is made of ABS plastic material and it is 3D printed from a model called Mini-Me on RepRap Prusa Iteration 3 3D printer. The hardware is based on ROMEO BLE mainboard. The Software consists of two parts:...
In this paper, the transient magnetic model of single-phase electromechanical meter using FEM is designed. Different power supply regimes of non-sinusoidal voltage and current waveforms were analysed with the considered impact of higher harmonics. Single-phase electromechanical electricity meters based on the principle of Ferraris energy meter for FEM application and as a source of measured data that...
The paper presents numerical models developed in QuickField software to determine load capacity for single-or three-phase cables so that not to exceed allowable temperature limits. The models allow determining cables parameters: self and mutual inductances, self and mutual partially capacitances. As a result, the application of an optimized arrangement of cable can be used to make the temperature...
The paper presents some results, obtained from numerical modelling and experimental investigation of processes in electrical insulation. Special attention was paid to the electric field distribution and its deformation in case of heterogeneous inclusions presence. The electric field of a system of two electrodes with dielectric between them has been studied using 3D FEM modeling with COMSOL 5.2 software...
The decisions of financial investors are often made in real-time under many constrains in an environment containing vague and imprecise information. The great amount of financial data brings additional problems in the decision making process. Currently, there are various and diverse software systems to support this process, some based on fundamental analysis and others — on technical analysis. Fuzzy...
The article discusses the basic requirements for the distribution bay of a MV switchgear of an explosion-proof structure for application in explosive atmospheres. It shows a typical construction of such the switchgear bay and presents the extent of the required tests with examples of selected investigated results.
To obtain bachelor's degree in electrical engineering, every student besides the pure theory needs to have certain practical experience in order to feel comfortable at the beginning of his career. Throughout the years in the university, this practical education is conducted in two different ways. The first one is during the mandatory specialized internship in real electric power plants and substations...
The electrical power system of Kosovo is a compact and integrated structure in hierarchical aspect. It plays an important role in the process of transmission and distribution energy to the consumers. Based on this importance analysis is necessary in order to estimate the medium and long term plans of production of electric energy and development of the power generation plants. Object of study in this...
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