Study on the Use of Electrical Devices in Smart Spaces: Professional Environment Versus Personal Environment

Abstract

The article addresses the issue of the attitude of Romanian consumer regarding the electrical devices that can be used at work and at home. In the context of the growing interest for these devices worldwide, the question arises what is the interest of the Romanian consumer for such devices. The research is built on a case study and uses as a method of analysis the quantitative study with questionnaire, highlighting the level of acceptance in use of different categories of electrical devices, advantages that characterize the perception of the Romanian consumer.

Predictive-Adaptive Maintenance Applied for Optimizing the Performance of Industrial Electrical Systems and Equipment

“…This allows the maintenance team to intervene before defects cause unplanned production shutdowns or other major problems. By implementing predictive maintenance, companies can minimize costs associated with emergency repairs and unplanned production interruptions while simultaneously improving the efficiency and reliability of their operations [15][16].…”

A Comparative Analysis of European and American Reglementations Used in Power Quality Investigations

“…In defining the terms Fortescue's theorem is utilized, a theorem that involves purely sinusoidal quantities, which is not applicable to modern electrical installations. As a result, it has been established [29,30,34,35] that the assessment of asymmetry can only be associated with fundamental quantities. This initially requires a Fourier decomposition of the quantities before applying Fortescue's theorem.…”

“…On the other hand, the definitions provided by NEMA and IEEE are more accurate because they evaluate the voltage difference between voltage values in three phases. In addition to these two types of analyzed regimes, namely the distorting and asymmetrical regimes, there are many other power quality indicators defined according to either European or American standards that may correspond to other sources of disturbances [34,39,40].…”