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...

A fundamental concept behind the operation of alternating current systems is that voltage and current waveforms will be sinusoidal – a Sine Wave. This...

Modelica is an open source (free) software language for modelling complex systems. Having never used it before, I thought I would download a development...

Depending where in the world you work, you are likely following one of two standards International Electrotechnical Commission (IEC) National...

Electromagnetic compatibility (EMC) is the study of coordinating electromagnetic fields give off equipment, with the withstand (compatibility) of other...

Before the technical, some general information. E-ink display are found in a lot of e-readers, some mobile phones and similar devices and the intent is...

If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...

Reading is a bit of a hobby of mine and I"ve done a few off-topic posts in the past on this. Rather than continue doing the occasional post I thought ...

When selecting a cable, the performance of the cable under fault conditions is an important consideration. It is important that calculations be carried...