Analysis of transients in layered type transformer windings

December 14th, 2018 | Make a comment | Posted in Electrical distribution

When a surge arises in case of lighting strike or a switching impulse, which could be the cause for insulation deterioration and at the end dielectric breakdown. This is a severe process, that depends on several factors, such as the frequency at which the transformer is exposed, the configuration of the system, the application of the component etc.

electrical power surge

Motors and distribution transformers are constantly exposed to fast surges, when they are switched by circuit breakers. Reigniting occurs during the switching of motors and transformers with vacuum circuit breakers, because of their ability to interrupt high-frequency currents.

This article presents the analysis of the measured and calculated voltages along the high-voltage winding of the transformer.

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Autotransformers: optimal location & installation

December 6th, 2018 | Make a comment | Posted in Electrical distribution

In this article you will read about the technical and economic analysis for the optimal location of installation of 2 autotransformers with voltage ratio of 400/110 kV, which are equipped with automatic load regulation.

This article is a feedback from an electrical project. It was written and sent to us by your fellow electrical engineer Mile from Macedonia :) Let’s begin!
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Control of an industrial blower using a variable speed drive

December 4th, 2018 | Make a comment | Posted in Energy Efficiency - motors

Are you ready for another article from one of your fellow electrical engineer? If you are, read the following article that A.Hand sent us via email :) Remember that you can also send us your essays and we’ll publish them in the blog.

electrical current motor control

Electrical motors form the horsepower of industry; they are included in almost all applications, they are used in compressors, lifts, hoists, saw machines, rollers, fans…etc. The most common type of electrical motors used in industry is the alternating current motor.
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Solar system: how to design a grid-tied with battery backup system

November 22nd, 2018 | Make a comment | Posted in Energy Efficiency - solar

solar power systems panelsEvery photovoltaic system (PV system) has its own constraints, each one different from the other. Some are related to shades, others to space or costs.

A good design of the PV system must be able to cover the needs of the customer and face the constraints, finding a technical and economic solution to the problem. Read Carlos’s solar design experience in Venezuela and share your story too in the comments.
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Safety basics and risks avoidance

November 19th, 2018 | Make a comment | Posted in Electrical Safety

Radical energies and complex mechanisms are used and implemented in all industrial processes nowadays. Such processes can potentially cause serious harm to personnel or property during an accident. In such a scenario, absolute safety is not achievable, reduction of risks to acceptable level is possible.

Let’s read what your fellow electrical engineer Yasser has to say about it.
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