LV/MV/HV Technical Articles
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A motor starting case study for any given electrical network can be performed by reducing the network to a smaller equivalent network consisting of a source (generator/grid), the starting motor… Read more
Calculation formulas as follows: Q1 = I losses + Cu losses Q2 = PkW · (Tanφ1 – Tanφ2) I losses = 2% · Str Cu losses = USC% · Str Q = Q1 + Q2 Where:… Read more
This thesis begins with the study of current naming conventions used in the power systems. Two standards, the COMTRADE and the IEC 61850, that define the organizing of data are… Read more
Development of Extra High Voltage (EHV) AC transmission started its development since the end of the WW2, with the installation of 345 kV in North America and 400 kV in…...
The various factors that make up power quality have developed together in the course of time and in step with the overall development of society and the electrical industry. Interest… Read more
The electrical design industry has historically required electrical system circuit breaker selections and settings be validated with a short circuit and coordination study performed by a licensed engineer. These studies… Read more
In low voltage networks, radial network structure with circuit breakers in series and time-current selectivity are quite common to deal with the challenge of selectivity. This is an easy and… Read more
There are two major problems that can occur in electrical systems: these are open circuits and short circuits. Of the two, the latter is the most dangerous because it can… Read more
The Department of Energy Fundamentals Handbook entitled Electrical Science was prepared as an information resource for personnel who are responsible for the operation of the Department’s nuclear facilities. A basic… Read more
The smart grid is referred to as the next-generation power grid, with advanced features and a two-way flow of electricity and communication. Those features include demand-side management, fault alarm, advanced… Read more
Becoming the good electrical engineer requires a lot of passion, training and commitment. This comprehensive section is prepared as a resource for individuals and professionals interested in the electrical engineering career path.
In this section you will find very usefull books and guides related to electrical science in general, AC/DC electrical circuits, network protection, electrical installations, lighting etc.Browse
Substation engineers nowdays are involved in projects from design and conceptualization to maintenance. Because of the wide range of industries using electrical engineers, many engineers specialize in some of the sub-discipline of electrical engineering.
Depending on background and expertise, projects can include systems such as energy transmission and distribution, protection and control etc.Browse
This section is dedicated to tools every electrical engineer can use in daily work. These spreadsheets developed by enthusiasts will make your job much more easier, alowing you to shorten the time used for endless calculations of power cables, voltage drop, power factor, circuit breakers, capacitors, cable size, power transformers etc.
Just to mention that all calculation spreadsheets are FREE for download!Browse