What are the primary substation feeders? How to analyze their arrangements?

A feeder carries energy to a substation or bus or to several loads. The several substation feeder arrangements are discussed in this technical article. Feeder may connect two substation buses… Read more

Mar 09, 2020 | Edvard

An overview of transformer connections and diagrams in the electric power system

Power transformers are used extensively by traditional electric utility companies, power plants, and industrial plants. This technical article summarizes the basic types, connections, and diagrams of transformers needed for analyzing…...

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Mar 05, 2020 | Edvard

Primary substations and bus layouts in the distribution system of an industrial plant

The primary distribution system of an industrial plant is generally the higher voltage portion of the system, starting with the purchased-power service and including generators, switching equipment, circuits, and all… Read more

Mar 02, 2020 | Edvard

Lessons I learned during installation and wiring of LV switchboard

Let’s start with some basic definitions from the United States National Electrical Code (NEC). An LV switchboard is generally defined as a large single panel, frame, or assembly of panels…...

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Feb 05, 2020 | Amar M

Eight criteria you should consider when choosing the right MV/LV transformer type

Although there are few common-sense rules that every electrical engineer follow when choosing the transformer type, it’s always a good idea to name the most important of them. This technical… Read more

Jan 29, 2020 | Edvard

The story of designing the electrical part of MV/LV power substation

Designing a new MV/LV distribution substation is somewhat complicated and involves a lot of factors you must take care of. This technical article will try to present the essential steps… Read more

Jan 15, 2020 | Edvard

The problem of induced voltages in control cables in high voltage substations

Cabling in power substation 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… Read more

Jan 13, 2020 | Edvard

Five switching devices you are likely to spot in most of the low voltage switchgears

This technical article will try to shed some light on switching devices usually installed in low voltage switchgear – circuit breakers, contactors, disconnectors, load-break switches, switch disconnectors and fuses. There… Read more

Dec 23, 2019 | Edvard

The analysis of MV/LV incoming supply configurations for large industrial plants

The metal-processing industry is an excellent example where you can find specific large industrial plants. Why specific? Maybe because in such plants, there are only a few individual large loads…...

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Dec 18, 2019 | Edvard

Why substation equipment fails and why it’s wise to think of that much before failure

This technical article will try to shed some light on why and how electrical equipment fails and what’s happening before and during the failure of particular substation equipment like switchgear,… Read more

Dec 09, 2019 | Edvard