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Technical Articles

Shielding Of Power Cables

Medium and high-voltage power cables, in circuits over 2000 volts, usually have a shield layer of copper or aluminum tape or conducting polymer. If an unshielded insulated cable is in contact with… Read more

Dec 12, 2010 | Edvard

Shielding of power cables

Hydro vs. Wind vs. Solar Power?

Matthew Stein, author of When Technology Fails: A Manual for Self-Reliance, Sustainability, and Surviving the Long Emergency wrestles with that very question in his book. Here’s an excerpt: No single RE source… Read more

Dec 11, 2010 | Edvard

Hydro vs. Wind vs. Solar Power?

Sources Of The Electric Energy – Generation

There are a number of ways to produce electricity, the most common commercial way being the use of a synchronous generator driven by a rotating turbine. The combination is called a turbine-generator…. Read more

Dec 10, 2010 | Edvard

Wind Power Turbine Diagram

IEC 62271-200 – HV Switchgear And Controlgear

Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV Switchgears are important nodal points in modern power distribution. Correspondingly important is… Read more

Dec 09, 2010 | Edvard

IEC 62271-200

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 bottom (horizontal… Read more

Dec 07, 2010 | Edvard

Time-Current Curves

Economic advantages of power factor correction

Power supply authorities apply a tariff system which imposes penalties on the drawing of energy with a monthly average power factor lower than 0.9. The contracts applied are different from country to… Read more

Dec 04, 2010 | Edvard

Economic advantages of power factor correction

Forms of Separation (1) – Introduction

Standard BS EN 60439 Part 1, describes a system for classifying the various forms of separation to be provided principally for: protection against contact with live parts belonging to the adjacent functional… Read more

Dec 04, 2010 | Edvard

Forms Of Separation - Introduction

ePlusMenuCAD 10 RC1 released

Today we released ePlusMenuCAD 10 RC1! Why RC1 (release candidate 1)? Simply because Help is not written yet. It will be added as soon as possible together with releasing of complete ePlusMenuCAD… Read more

Dec 03, 2010 | Edvard

ePlusMenuCAD


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