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...

There are a lot of interesting two page type notes on various medium voltage topics – switchgear, circuit breakers, bus systems etc. It is on the Siemens...

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...

The term 'N+1' relates to redundancy and simply means that if you required 'N' items of equipment for something to work, you would have one additional...

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...

One of the requirements to ensuring that everything works is to have equipment selected, manufactured and verified [tested] to IEC standards. Not all equipment...

Within Europe the European Committee for Electrotechnical Standardization (CENELEC) has standardised the both the designation and colour of cables.   ...

Years ago I was told that you should always try to write the best report you can.  Many years later I still think on this as one of the better pieces of...

Everything physical in electrical engineering from insulations to conductors revolves around materials. Here we are listing common materials along with...

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...