Capacitors are widely used in electrical engineering for functions such as energy storage, power factor correction, voltage compensation and many others...

For the past few years I have reading eBooks on my HTC touch phone. On and off I have debated buying an eReader and recently purchased a Sony PRS-300 ...

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...

The widely used United Sates standard ANSI/IEEE C37.2 'Electrical Power System Device Function Numbers, Acronyms, and Contact Designations' deals with...

Our cable sizing tool is one of the more popular tools on the site.  The tool enables cables to be sized in compliance with BS 7671 (the IEE Wiring Regulations...

The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.

Power cables can basically be classified into earthed and unearthed cables, where earthed and unearthed refer to the application for which the cable is...

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 image (reproduced from IEC 60909) shows a typical fault in an ac system.  From the illustration it can seen that there is an initial dc component ...

Power factor is the ratio between the real power (P in kW) and apparent power (S in kVA) drawn by an electrical load. The reactive power (Q in kVAr)...