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Practical approach in design and installation of detuned capacitor banks

During last two or three decades, the number of nonlinear electrical loads inside all types of buildings and facilities (residential, business, commercial and industrial) has been significantly increased. All that…...

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Mar 15, 2019 | Miodrag Kokotovic

Practical approach in design and installation of detuned capacitor banks

Three essential features of automation in power distribution systems

One may wonder why are 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…...

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Feb 28, 2019 | Edvard

The essential features of automation in power distribution systems

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…...

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Feb 08, 2019 | Edvard

Three-Phase Transformer Connections

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…...

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Jan 25, 2019 | Edvard

How To Determine Power Transformer Impedance

How to determine compensation of reactive power of an electrical installation

Improving the power factor of an electrical installation (compensation of reactive power) has many economic and technical advantages, but it’s not always easy to do so. There are numerous approaches…...

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This content is available for Premium members only. Premium membership gives you an access to specialized technical articles and other extra premium content (electrical guides and software). Premium Membership ♛

Jan 11, 2019 | Edvard

How to determine compensation of reactive power of an electrical installation

Directional protection relays applied to multiple power sources, parallel circuits and loops

Directional protection is usually applied to distribution systems that contain multiple power sources, parallel circuits and rings/loops. For such systems it is absolutely necessary to have protection against fault currents…...

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This content is available for Premium members only. Premium membership gives you an access to specialized technical articles and other extra premium content (electrical guides and software). Premium Membership ♛

Dec 27, 2018 | Edvard

Directional protection relays applied to multiple power sources, parallel circuits and loops

The logic behind switchgear interlocking systems in substations

Switchgear interlocking is installed to protect both the equipment and the operator from dangerous situations caused by incorrect equipment operation. It can be categorized as operational interlocking and safety, or…...

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This content is available for Premium members only. Premium membership gives you an access to specialized technical articles and other extra premium content (electrical guides and software). Premium Membership ♛

Dec 07, 2018 | Edvard

The logic behind switchgear interlocking systems in substations

Main components of a Gas Insulated Substation (GIS) you should know about

Gas insulated substations (GIS) use circuit breakers, disconnect switches and grounding switches, and have various means of indicating their position, either opened or closed, so the same as in AIS…....

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Nov 23, 2018 | Edvard

Main components of a Gas Insulated Substation (GIS) you should know about

The raising technology of high voltage vacuum circuit breakers (that could replace SF6…)

Because of great harmfulness of greenhouse effect, SF6 gas has to be limited. It is necessary to develop high voltage vacuum circuit breaker to replace SF6 circuit breaker. Insulating structure…...

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Nov 07, 2018 | Ali Sepehri

High voltage vacuum circuit breakers - The raising technology

4 special capacitor applications in EHV systems you should know about

There are many other applications in the industry where capacitors are used for power factor correction or energy storage purposes. These include arc furnaces, resistance welding equipment, single-phase capacitor start,…...

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Oct 26, 2018 | Edvard

4 special capacitor applications in EHV systems you should know about


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