Energy and Power
Essential considerations on the neutral and protective conductor in LV power system
The neutral conductor is a live conductor that is connected to the neutral point of the system and is able to contribute to the transmission of electric power. The neutral point is usually, but not necessarily connected to the star-point… Read more
Feb 19, 2018 | By Edvard Csanyi
Electrical Lectures
Current Systems (AC/DC) And Voltage Levels Basics You Must Never Forget
There are many electrical engineering basics you really must know at any time, even in the middle of the night! The basics we will discuss here are current systems and voltage levels in transmission and distribution systems. Contents: Current Systems… Read more
Nov 29, 2017 | By Edvard Csanyi
Electrical Lectures
Power distribution configurations with three 3-phase hot power lines
Power leaves the substation on three, three-phase “hot” power lines that are strung adjacent to highways or along local roads to points of use. All three phases share a single neutral line and have the same voltage, but they are… Read more
Jun 01, 2016 | By Edvard Csanyi
Energy and Power
Phases and wires in distribution of AC power
AC power transmission is always at high voltage and mostly by 3-phase system. The use of single-phase system is limited to single-phase electric railways. Single-phase power transmission is used only for short distances and for relatively low voltages. By the… Read more
Oct 19, 2015 | By Edvard Csanyi
Cables
4 practical approaches to minimize voltage drop problems
The NEC states in an Informational Note that a maximum voltage drop of 3% for branch circuit conductors, and 5% for feeder and branch circuit conductors together, will provide reasonable efficiency of operation for general use circuits. For sensitive electronic… Read more
Feb 25, 2015 | By Edvard Csanyi
Transformers
Power Transformer Construction – The Core
The construction of a power transformer varies throughout the industry. The basic arrangement is essentially the same and has seen little significant change in recent years, so some ofthe variations can be discussed in this article. The core, which provides… Read more
Aug 23, 2012 | By Edvard Csanyi
Energy and Power
Single-Phase Power vs Three-Phase Power
The principal elements of an electric power system are the generating stations, the transmission lines, the substations, and the distribution networks. The generators produce the electricity, the transmission lines move it to regions where it is consumed, and the substations… Read more
Apr 01, 2012 | By Edvard Csanyi
Energy and Power
Typical Constructions Of Overhead Lines
Along streets, alleys, through woods, and in backyards, many of the distribution lines that feed customers are overhead structures. Because overhead lines are exposed to trees and animals, to wind and lightning, and to cars and kites, they are a… Read more
Oct 03, 2011 | By Edvard Csanyi
Transformers
How to choose transformer rating?
When an installation is to be supplied directly from a MV/LV transformer and the maximum apparent-power loading of the installation has been determined, a suitable rating for the transformer can be decided, taking into account the following considerations: The possibility… Read more
Mar 12, 2011 | By Edvard Csanyi
Energy and Power
Ecodial 3 – FAQ’s
Remark : You may renumber the functional names with the Automatic numbering of the View menu. Version 3.2 of Ecodial works from a cable database. If such a cable exists in the database, then you can use it. The short… Read more
Jan 22, 2011 | By Edvard Csanyi
Energy and Power
Short-Circuit Electrical Currents
A short circuit is one of the major incidents affecting electrical systems. The consequences are often serious, if not dramatic: Short circuit disturbs the system environment around the fault point by causing a sudden drop in voltage, It requires a… Read more
Oct 28, 2010 | By Edvard Csanyi
