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Why more and more automation in power distribution? Aren’t we already automated?
One may wonder why is everybody talking more and more about automation in power distribution. Aren’t we already automated? Well, we are not. It can always be better, faster, with more possibilities and more optimized. This is something that pushes…...
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Feb 28, 2019 | By Edvard Csanyi
Energy and Power
5 most important aspects of external protection against the effects of lightning
Analysis of the lightning risk takes numerous factors into consideration. This article will shed the light on one of factors – protection of the structures and its five most important aspects: lightning conductors, electrogeometric model, capture surface areas, downconductors and… Read more
Feb 27, 2019 | By Edvard Csanyi
Energy Generation
What is negative sequence current and how does it affect generator work
As you know, generators and motors are supposed to operate with balanced three-phase loading, but exposure to unbalanced currents is inevitable. Unbalances could arise from many different sources like unbalanced loads, untransposed transmission line construction, faults and open phases, etc…. Read more
Feb 25, 2019 | By Edvard Csanyi
Energy and Power
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Learn to recognize T&D pylons, foundations, insulators, cables, bushings and arresters
Recognizing the type of transmission & distribution pylons and their equipment is kind of hard if you don’t know where to look for. There are many variations that look similar and you must have sharp eyes to see the details…....
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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, 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.
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Feb 20, 2019 | By Edvard Csanyi
Power Substation
How not to overspecify high voltage CTs and VTs
The installations wherein CTs and VTs are mounted to measure the normal and abnormal values of current and voltage, have many variations in key system parameters, including voltage class, insulation and short-circuit level, earthing type, rated current and burden, accuracy,… Read more
Feb 18, 2019 | By Edvard Csanyi
High Voltage
Inspection and maintenance of capacitor banks (recommended practices)
Capacitor banks generally require very little maintenance because they are static type of equipment, but don’t be fooled by this statement. Capacitors are well known for their dangerous reaction when something goes wrong. Standard safety practices should be followed during… Read more
Feb 13, 2019 | By Edvard Csanyi
Energy and Power
How to start with the design of electrical installation?
The power analysis must be always at the very top of your tasks in the design of an electrical installation. It will enable the source(s) to be sized according to the purpose of the installation, the intended use of the… Read more
Feb 11, 2019 | By Edvard Csanyi
Premium Content
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Connections and working principles of three-phase distribution transformers
A three-phase service can be supplied by one three-phase transformer unit or by interconnecting three single-phase transformer units. One three-phase unit is smaller than an equivalent size bank consisting of three single-phase units. One three-phase transformer tends to be used…...
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Feb 08, 2019 | By Edvard Csanyi
Power Substation
Six steps for specifying IEC 61850 and substation automation requirements
It is not easy to read the IEC 61850 documents or to comprehend how the pieces all work together. When implementing systems as complex and as new as substation automation, substation engineers will need to work closely together with the… Read more
Feb 06, 2019 | By Edvard Csanyi
Industrial Automation
Five ingredients that make SCADA operation delicious
To explain in very simple words, I would say that SCADA is a bunch of equipment that provides an operator at a remote location with sufficient information to determine the status of particular equipment/process and make actions without being physically… Read more
Feb 04, 2019 | By Edvard Csanyi
Safety
People response to short-term exposure to electric fields of AC transmission lines
Short-term exposures to electric fields produced by AC transmission lines and stations can be pretty serious and may be classified according to the type of effect causing a sensation in people. Information in this article is taken from the study… Read more
Jan 30, 2019 | By Edvard Csanyi
Protection
Protection of a transformer directly connected to a transmission line without switchgear
A transformer-feeder include a transformer directly connected to a transmission line circuit without the intermediation of a HV switchgear. The saving in HV switchgear so achieved is unfortunately lowered by increased complication in the necessary protection. The primary requirement is… Read more
Jan 28, 2019 | By Edvard Csanyi
Electrical Lectures
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How to determine power transformer impedance for calculation of short-circuit currents
In order to calculate short-circuit currents, it is obligatory to know conductor-specific equivalent data and impedances of electrical operational equipment, which are usually given by the respective manufacturer. The calculation of short-circuit currents is based on the use of equivalent circuits…...
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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, 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.
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Jan 25, 2019 | By Edvard Csanyi
Power Quality
Six MV/HV applications of series capacitors for improving the power quality
Series capacitors are connected in series in the circuit and therefore carry the full transmission line current. The series capacitor is actually a negative reactance in series with a transmission line. The voltage rise across the capacitor is a function… Read more
Jan 23, 2019 | By Edvard Csanyi
Electrical Lectures
6 not-that-easy-to-understand terms related to a power transformer you should understand
There are many terms related to the power transformer operation that can be easily visualized which are especially important for students, like for example transformer construction or regular working principle. On the other hand, there are few not that easy… Read more
Jan 21, 2019 | By Edvard Csanyi
