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Archive: Category «Energy and Power»

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Characteristics of Lightning Strokes

Lightning, one of Mother Nature’s most spectacular events, started to appear significantly demystified after Franklin showed its electric nature with his famous electrical kite experiment in 1752. Although a great… Read more

Dec 19, 2010 | Edvard

Characteristics of Lightning Strokes

Time-Current Curves explained in details

Time-current curves are used to show how fast a breaker will trip at any magnitude of current. The following illustration shows how a time-current curve works. The figures along the… Read more

Dec 07, 2010 | Edvard

Time-Current Curves

Electrical Certificates

There is often confusion about what is commonly referred to as an “Electrical Certificate”. There are essentially 3 types of documents or certificates. Each imply different type of certification. “Electrical… Read more

Dec 02, 2010 | Edvard

Electrical Certificate, Tests and Report

Electrical Power System Overcurrents

Electrical power systems must be designed to serve  a variety of loads safely and reliably. Effective  control of short-circuit current, or fault current as  it is commonly called, is a… Read more

Nov 27, 2010 | Edvard

Harmonic Distortion

Harmonic distortion is caused by nonlinear devices in the power system. A nonlinear device is one in which the current is not proportional to the applied voltage. Figure 1 illustrates… Read more

Nov 23, 2010 | Edvard

harmonic_distortion

Battery monitoring and maintenance guidelines

Battery monitoring has become a very popular topic, and many companies have either purchased equipment or are in the process of evaluating these systems. This article discusses why monitoring is… Read more

Nov 21, 2010 | Edvard

Battery Monitoring And Maintenance

The Need for Reactive Power Compensation

Except in a very few special situations, electrical energy is generated, transmitted, distributed, and utilized as alternating current (AC). However, alternating current has several distinct disadvantages. One of these is… Read more

Nov 19, 2010 | Edvard

Power Factor Correction
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