Power systems theory - generation, transmissions and distribution
We have had the Wiki with us for a long time now, but at last I have decided to say bye bye – more details on why below.
The (relatively new) switchgear and control gear standard, IEC 61439 'Low-voltage switchgear and controlgear assemblies' has three methods which can be...
The other day I was talking to a colleague who is a building services consultant. Despite regularly specifying dry-type/cast resin transformers he was...
Often document control is dictated by project requirements, for example a particular organisation may have an existing numbering system. Existing company...
Collection of links to various places with useful motor information. I’ll try and return to the page every now and again to update it with any motor notes...
Multimeters are undoubtedly the most common item of electrical test equipment in use. Often it is the first piece of equipment people will turn to when...
Maxwell's Equations are a set of fundamental relationships, which govern how electric and magnetic fields interact. The equations explain how these fields...
The new standard IEC 61439 replaces the old 60439. Compared to the old standard, the new 61439 is a more clearly defined and takes into account the assembly...
The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.
A battery consists of one or more cells, each of which use stored chemical energy to produce electrical energy, There are many types of cells and these...
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