The most common MV/LV radial distribution systems applied in buildings
In many cases, power is supplied by the power utility to a building at the utilization voltage. In these cases, the distribution of power within the building is achieved through… Read more
Aug 12, 2019 | Low Voltage
5 types of software that LV design engineers MUST know how to work with
Back in early days, engineers weren’t able to use software tools for the purpose of drawing, calculation and design. So, how did they do it? Prior to software era, drawings…...
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Aug 08, 2019 | Energy and Power ♛
Maintenance and troubleshooting guidelines for a typical high voltage switchgear
Like any other major component of the high voltage electrical network, a switchgear also needs maintenance schedules for trouble-free operation during its life cycle. No one should work on the… Read more
Aug 07, 2019 | Maintenance
MV distribution system design based on metal-clad drawout switchgear
Nowadays, system design engineers have a choice of many types of systems that may be used for a particular application. This discussion covers medium voltage distribution systems and their practical… Read more
Aug 05, 2019 | Medium Voltage
How not to select the wrong generator set (genset) for your application
Generator set is maybe the most expensive part you can find in a substation. Therefore, many factors must be considered when determining the proper size or electrical rating of an… Read more
Jul 31, 2019 | Energy Generation
The essentials of designing MV/LV single line diagrams (symbols & drawings analysis)
First of all, power system designers should always communicate their design requirements through a combination of drawings, schedules and technical specifications. One of the key tools in developing and documenting… Read more
Jul 29, 2019 | Energy and Power
Learn how to analyse and check factory wiring diagrams of a MV switchgear
As already written earlier regarding LV switchboard, wiring diagrams are used to show control and signalization principle of operation inside switchboard. Usually they are given in form of electrical circuits…...
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Jul 25, 2019 | Medium Voltage ♛
Practical implementation of the six most common transformer protection principles
This technical relies on the previously published article (6 alarms coming from a substation transformer you MUST take very seriously), but is much more dedicated to the implementation of relay… Read more
Jul 24, 2019 | Protection
6 alarms coming from a substation transformer you MUST take very seriously
Transformers are the most expensive piece of apparatus in a power substation and therefore must have appropriate protection equipment installed to guard against various faults. This technical article explains a… Read more
Jul 22, 2019 | Power Substation
Example of 33/11 kV substation on-site assessment report
This technical article presents the shorten version of the report of an on-site assessment at the 33/11 kV Shatt Al Arab substation built in Iraq back in 2005. The assessment… Read more
Jul 17, 2019 | Power Substation
Critical aspects of a distance non-unit relay protection (you should understand)
Non-unit protection consists of circuits that measure and compare the voltages and currents at the relaying point. It is able to determine the location of the fault from these values…. Read more
Jul 15, 2019 | Protection
The magic I used to reduce harmonics in a plant (a real case study)
During last several decades, number and severity of electrical engineering problems caused by harmonic distortion have been significantly increased in both, domestic and industrial environment. This is mainly due to…...
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Jul 11, 2019 | Energy and Power ♛
Issues with distributed generation protection (bulk power and distributed generators)
Besides a number of benefits, there are some technical problems with relay protection of distributed generators. It turned out to be one of the most problematical technical issues since its… Read more
Jul 10, 2019 | Energy Generation
Practical tips for installing surge protection devices in low voltage panel
In an electrical systems, surge protection devices (SPDs) are usually installed in tap-off configuration (in parallel) between the live conductors and the earth. The operating principle of SPD can be… Read more
Jul 08, 2019 | Energy and Power
How harmonic filters prevent distortions in networks with high harmonic levels
The subject of this technical article are harmonic filters and their design. Filtering measures are recommended and may be required for electrical systems with too high harmonic levels. Filter circuits… Read more
Jul 03, 2019 | Energy and Power
