Energy and Power
The difference in how series and shunt capacitors regulate the voltage and reactive power flows
At a casual look, a capacitor seems to be a pretty boring and unsophisticated device, that is, two metal plates separated by a dielectric insulating material. Couldn’t be simpler than… Read more
Jun 21, 2021 | By Edvard Csanyi
Technical Guide/Paper
AC grid vs DC grid: HV AC transformers vs power electronics and DC/DC converters
In the early years of electrical power distribution, Direct current (DC) was the standard current. However, due to flaws in Edison’s DC system, AC became the current standard due to… Read more
Jun 16, 2021 | By Edvard Csanyi
Premium Content
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Power transformers testing and commissioning at the site (instructions and precautions)
Since I started the commissioning work 30 years back, transformer commissioning consisted of more tests, but nowadays, the number of tests has been reduced due to costs and time-saving. This…...
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May 31, 2021 | By Omar Salah
Premium Content
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My worst experience in testing and commissioning power transformers (and how I fixed things up)
Reliable and secure electric power delivery is dependent on power transformers’ reliability that is enhanced significantly by sound test plans. These test plans shall be prepared by both manufacturers and…...
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This technical article/guide requires a Premium Membership. You can choose an annually based Plus, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers. With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.Check out each plan’s benefits and choose the membership plan that works best for you or your organization.
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Apr 29, 2021 | By Salem Alshahrani
Technical Guide/Paper
Control of variable shunt reactors with tap-changer through simulation of a power system
To investigate the control strategy of Variable Shunt Reactors (VSR) with tap-changer, the best way is to take the advantages of modeling and simulation through computer software; in reality, it… Read more
Mar 29, 2021 | By Edvard Csanyi
Energy and Power
A few practical ways to determine required reactive energy compensation for a power system
This article will shed some light on how adding capacitors gives the distribution system the necessary reactive power to return the power factor to the required level. Capacitors act as… Read more
Mar 01, 2021 | By Edvard Csanyi
Medium Voltage
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Sizing of 110V DC charger for MV panels – Auxiliary power supply in power substations
An auxiliary DC power system that consists of a charger, battery bank, DC distribution system, and monitoring system is a critical part of the primary/secondary substation. It is directly associated…...
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This technical article/guide requires a Premium Membership. You can choose an annually based Plus, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers. With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.Check out each plan’s benefits and choose the membership plan that works best for you or your organization.
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Feb 08, 2021 | By Bishal Lamichhane
Energy and Power
How to measure power quality? What devices should you use and what to measure?
Measuring power quality and finding a bugbear in the network which is messing with the power are considered a highly paid job. Every electrical network and its problems with harmonics,… Read more
Jan 18, 2021 | By Edvard Csanyi
Technical Guide/Paper
A symmetrical component study of earth faults in power transformers in parallel
The behaviour of transformers in parallel under earth fault conditions is governed largely by the neutral point earthing of the circuit in which the fault occurs. The current and voltage… Read more
Nov 11, 2020 | By Edvard Csanyi
Power Substation
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Hints on installation and commissioning power transformers (experience and recommendations)
Purchasing a power transformer for a project is always challenging for every electrical engineer dealing with the procurement. You could omit dozens of possible details from the final specification and…...
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This technical article/guide requires a Premium Membership. You can choose an annually based Plus, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers. With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.Check out each plan’s benefits and choose the membership plan that works best for you or your organization.
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Sep 28, 2020 | By Edvard Csanyi
Technical Guide/Paper
What is harmonic distortion in a power system, and how to minimize the impacts
The transformer station feeds a large modern mechanical industry, divided in two parts fed by separate transformers. The phase voltage and phase current were monitored to the 20 MVA part… Read more
Sep 14, 2020 | By Edvard Csanyi
Technical Guide/Paper
Fast fault detection study for power distribution systems
Two case studies have been performed in order to investigate the performance of algorithms for fault detection and current limiting concepts on a model of a real power system. The… Read more
Sep 02, 2020 | By Edvard Csanyi
Electrical Lectures
The essentials of power-generation systems you MUST know in the middle of the night!
When we talk about the power system, there are dozen of essential terms and definitions. One of the most important is for sure that any AC power system begins with… Read more
Aug 31, 2020 | By Edvard Csanyi
Metering
How to make the right selection of a digital transducer for power system measurements
The accurate measurement of the voltage, current or other parameter of a power system is a prerequisite to any form of control, ranging from automatic closed-loop control to the recording… Read more
Aug 19, 2020 | By Edvard Csanyi
Technical Guide/Paper
Insulation coordination study for lightning overvoltages in 420 kV power substation
Busbar type of the substation is designed according to the importance of the substation. This means that effects of energy interruption versus capital expenditure of the substation. A substation where… Read more
Jul 29, 2020 | By Edvard Csanyi
