Cables
Twelve high voltage cable construction techniques used worldwide
This technical article discusses twelve different methods for laying high voltage cables. Out of the ten, four are deemed conventional and eight are deemed progressive. Many various utilities and companies all across the globe are making use of them, though… Read more
Apr 29, 2024 | By Edvard Csanyi
Cables
Seven golden foundations of good electrical installation work
This technical article deals with the practical aspects of commercial and industrial electrical installation work. It is of the utmost importance that the practical task be done in the appropriate manner. Electrical installations in commercial and industrial settings are often… Read more
Jul 24, 2023 | By Edvard Csanyi
Cables
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Voltage Drop Analysis and Calculation Essentials (MS Excel Sheet Bonus)
A voltage drop is the total amount of voltage loss that happens through all or part of an electric circuit due to impedance and other factors. The more the voltage drops in the system, the more negative impacts will likely…...
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Nov 28, 2022 | By Mohammed Ayman
Cables
Parameters of generators, transformers, lines and cables for vars, voltage and loads control
For a power system to operate efficiently and securely, the importance of the correct and coordinated provision and control of reactive power cannot be overemphasised. It is necessary to examine reactive power requirements under both steady-state and dynamic conditions. Although… Read more
Jan 31, 2022 | By Edvard Csanyi
Cables
Dos, don’ts and precautions in wiring cables and conductors inside low-voltage switchboard
To be clear from the very beginning of this article, there is no standard model for wiring low voltage switchboards and panelboards. However, for the wide variety of installations and ranges of power ratings, there are local work practices, regulations… Read more
Apr 26, 2021 | By Edvard Csanyi
Cables
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The essential HV/EHV substation auxiliary facilities you should know about
Nowadays, HV/EHV substations have become pretty complex from the design point of view. Besides the main electrical equipment, which must be designed and selected correctly, there are several auxiliary facilities without which a substation would not be able to operate…...
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Apr 27, 2020 | By Edvard Csanyi
Cables
The art of determining the right cross-section of low voltage conductors
To be clear at the beginning of this article, determining the cross-section of conductors and cables is, for sure, not the most exciting part of electrical design. There are much more challenging and more exciting parts than staring at endless… Read more
Mar 16, 2020 | By Edvard Csanyi
Cables
The problem of induced voltages in control cables in high voltage substations
Cabling in power substations is very important due to the fact that they are the longest parts of a system and therefore act as efficient antennas that pickup and or radiate noise. In HV substations, there are different kinds of conductors… Read more
Jan 13, 2020 | By Edvard Csanyi
Cables
How optical communication cables work and how they differ from other cables
In several previous articles I mentioned optical fibre in the context of substation automation, protection signaling, communication between electrical devices, LAN communications, etc. Now I will get into details of fibre optic basics, design, jointing/termination and installation. Let’s start the… Read more
May 23, 2018 | By Edvard Csanyi
Cables
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High Voltage Cables In a Nutshell (Technology, Bonding, Installation and Service)
Differences between the electrical characteristics of overhead transmission lines and high voltage AC cables are fundamental and must be considered. This article gives a brief introduction to cable technology, with focus on the topics which must be considered when designing…...
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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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May 04, 2018 | By Edvard Csanyi
Cables
Overhead vs. Underground Residential Distribution Circuits. Which One Is ‘Better’?
This debate continues. Both designs have advantages (see Table 1). The major advantage of overhead circuits is cost. An underground circuit typically costs anywhere from 1 to 2.5 times the equivalent overhead circuit (see Table 2). But the cost differences… Read more
Nov 13, 2017 | By Edvard Csanyi
Cables
Sizing calculations for 20/3.3 kV, 12.5 MVA transformer feeder cable
Typical calculations for a 20kV transformer feeder cable are presented below. After correct cable voltage classification the following considerations apply: Current carrying capacity Short circuit rating Voltage drop Earth loop impedance Consider a 20/3.3 kV, 12.5 MVA transformer to be… Read more
May 08, 2017 | By Edvard Csanyi
Cables
Guidelines for high potential (Hi-Pot) DC testing of medium voltage cables
This technical article provides general guidelines for high potential “Hi-Pot” DC testing of MV power cables. All tests made following cable installation and during the warranty period must be performed in accordance with the applicable specifications. Testing should be performed… Read more
Feb 20, 2017 | By Edvard Csanyi
Cables
Specifying energy efficient motor, cabling and local power transformer
Many energy saving actions can encourage specifiers and engineers to look closely at the savings which can be made by specifying an energy efficient version of a particular component. This technical article presents the case for taking the important step… Read more
Jan 09, 2017 | By Edvard Csanyi
Cables
Five key factors to the correct cable selection and application
It is essential to know cable construction, characteristics, and ratings to understand problems related to cable systems. However, to correctly select a cable system and assure its satisfactory operation, additional knowledge is required. This knowledge may consist of service conditions,… Read more
Oct 31, 2016 | By Edvard Csanyi
