Energy and Power
Four Special Differential Protections And Their Respective CT Requirements
Although the manufacturers of relays dedicated to differential protection impose the necessary CT secondary characteristics required for proper operation, it is useful, for understanding and avoiding errors, to possess minimum knowledge of this type of protection. A differential protection monitors… Read more
Feb 05, 2018 | By Edvard Csanyi
Energy and Power
5 Main Harmonics Generators And Their Detrimental Effects On Industrial Applications
In industrial applications, the main types of equipment that generate harmonics are: static converters, arc furnaces, lighting, saturated reactors and other equipment, such as rotating machines which generate slot harmonics (often negligible). Let’s have a word about each of listed… Read more
Jan 31, 2018 | By Edvard Csanyi
Energy and Power
How to control and protect capacitor banks before something goes wrong
The purpose of a capacitor bank’s protective control is to remove the bank from service before any units or any of the elements that make up a capacitor unit are exposed to more than 110% of their voltage rating. When… Read more
Jan 24, 2018 | By Edvard Csanyi
Electric Motor
Calculation of shaded-pole motor losses and efficiency at full load in 6 steps
First, let’s say few words about shaded-pole motors, and then dive into calculation procedure. A shaded pole motor is the simplest form of a single phase motor and is very low in cost. It develops a rotating field by delaying… Read more
Jan 17, 2018 | By Edvard Csanyi
Energy and Power
What are Triplen Harmonics and where do they happen?
In order to understand network problems with triplen harmonics, first let’s have a short explanation of harmonic phase sequence and third harmonics. Power engineers have traditionally used symmetrical components to help describe 3-phase system behavior. The 3-phase system is transformed… Read more
Jan 15, 2018 | By Edvard Csanyi
Electrical Lectures
Solve These Ten DC Circuits and Train Your Brain!
I guess you’re still recovering from an awesome lunches and dinners you’ve had during holidays. Well, now when it’s over – it’s a good moment to plug yourself back and shake your brain cells! Assuming that you’re very familiar with… Read more
Jan 04, 2018 | By Edvard Csanyi
Energy and Power
It’s About Time. Engineers, Happy New Year!
Well, it’s about time. With 2018 just around the corner, it’s time to stop and look back at yet another good year at EEP. Beside publishing about 300+ technical articles and electrical guides and really amazing engagement, we are especially… Read more
Dec 30, 2017 | By Edvard Csanyi
Energy and Power
Seven Bad Effects Of Corona On Transmission Lines
All the diverse ionization processes involved in producing corona discharges in the highly stressed regions near the conductors of transmission lines, as well as the creation and movement of charged particles in the electric field, require an expenditure of energy…. Read more
Dec 08, 2017 | By Edvard Csanyi
Energy and Power
Protections For Medium Voltage Synchronous Machines (Generators) – IEEE C37-2 Codes
The protection system for MV generators (synchronous machines) must be carefully selected and studied for the application it is destined for and it is not normally possible to define a single solution. Only medium voltage generators are analysed and large… Read more
Dec 04, 2017 | By Edvard Csanyi
Energy and Power
How To Control Reactive Power In Larger Electrical Plants With Multiple Incomers
Most compensation banks are controlled stepwise. For this purpose it is essential to ‘know’ when it is allowed to (de)activate a capacitor step by the power factor relay (controller). The so-called C/k value is calculated by the step size C… Read more
Nov 15, 2017 | By Edvard Csanyi
Energy and Power
How To Calculate and Draw a Single Line Diagram For The Power System
This technical article explains how to calculate and draw a single line diagram of the three-phase, 60-Hz system power system with generators, motors, transformers and lines. The following components comprise a simplified version of a power system, listed in sequential… Read more
Nov 01, 2017 | By Edvard Csanyi
Energy and Power
Improvement of Power Quality via Dynamic Reactive Power Compensation Systems
In many cases, industrial plants are characterized in particular by the use of highly dynamic drive technology. In addition to the undeniable advantages of these modern technologies, there is the disadvantage that the electrical networks are strained because of frequent… Read more
Oct 11, 2017 | By Edvard Csanyi
Energy and Power
The Structure of Electric Power Systems: Energy Generation, Distribution and Transmission
From a general perspective, an electric power system is usually understood as a very large network that links power plants (large or small) to loads, by means of an electric grid that may span a whole continent, such as Europe… Read more
Oct 09, 2017 | By Edvard Csanyi
Energy and Power
How to choose a form of separation for LV switchboard and how to classify them
By form of separation it is meant the type of subdivision provided within the switchboard. Separation by means of barriers or partitions (metallic or insulating) may have several functions. And these functions: Provide protection against direct contact (at least IPXXB)… Read more
Sep 25, 2017 | By Edvard Csanyi
Energy and Power
Rules for power distribution in LV switchgear and protection of branch / distributed lines
In designing a power distribution concept, encompassing the sizing of systems and devices, it is essential to align the requirements and feasibility with both the end user and the manufacturer. The appropriate sizing of low-voltage switchgear necessitates an understanding of… Read more
Sep 20, 2017 | By Edvard Csanyi
