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The earth grounding (EGR) computation model contained in normative acts has multiple nonlinearities and functions with implicit definitions. In addition, through the values indicated for the utilization coefficients, the designers are oriented towards relatively large distances between electrodes and no optimal criteria are defined. In earlier works, the authors have realized nomograms in order to...
The design of earth grounding at rated values corresponding to the role to be accomplished is relatively laborious and there are no highlighted optimum criteria giving the justification for the chosen solution. The vertical earth grounding calculus is restructured in this paper, realizing sizing nomograms which include all characteristic sizes, the final goal being the determination of the electrodes...
The maim aim of this paper is to compare the rezults obtained for the steady-state run by using a new software, as Distribution Management System/Energy Management System (DMS/EMS) type, with the results delivered by traditional software products, as Paladin Design Base, which is extensively used in the design, analysis and maintenance of electrical networks. This comparison is particularly useful...
To know the electrical power losses of an electrical network from an established perimeter and to adopt some measures in order to obtain their decrease represent very important problems in the electrical networks exploitation and maintenance. Thus, this paper aims to realize the model of the medium voltage (MV) network belonging to the electrical station Centre from the urban area of Cluj-Napoca in...
The paper presents an Embedded Motor Drive Prototyping test bench for developing and study energy efficient of the motor drives. The development platform uses an eZdsp target controller with power stage converter that employs Targeted Code Generation from Matlab-Simulink and the Target Support Package for the TI C2000 microcontrollers. Computer Aided Control System Design (CACSD) tools are used to...
Both suppliers and end-users are more interested in knowing the power quality (PQ) level through their common network. Unfortunately, there are no clear experimental methods and especially interpretable for all PQ aspects. This is also the case of the slow voltage variations about which it is theoretically known that they include variations with periods between (5 min+24 h), so practically the voltage...
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