We are pleased to present below all posts archived in 'May 2009'. If you still can't find what you are looking for, try using the search box.
It wasn't so long ago I was telling someone that I don't use rules of thumb as most things are easily calculated anyhow. As it turns out I last week I ended up using what can only be describ... read more..
A frequent problem in fault calculations is the obtaining of equipment parameters. While it is always preferable to use the actual parameters of the equipment...
This article gives an introduction to IEEE 485 method for the selection and calculation of battery capacity.
Depending where in the world you work, you are likely following one of two standards International Electrotechnical Commission (IEC) National...
When sizing cables, the heat generated by losses within any sheath or armour need to be evaluated. When significant, it becomes a factor to be considered...
Some colleagues had an issue earlier in the week on sizing conduits to be cast in concrete for some power cables . It became clear that none of us had...
In three phase systems, the use of transformers with three windings (or legs) per side is common. These three windings are often connected in delta or...
When selecting a cable, the performance of the cable under fault conditions is an important consideration. It is important that calculations be carried...
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...
The other day I came across an article in Technology Review on the development of a smart transformer. A professor at North Carolina State University is...
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