Current transformers (CTs) are used to convert high level currents to a smaller more reasonable level for use as inputs to protection relays and metering...

Recently I have seen a few interesting articles on viable cold fusion; the combining of atoms at room like temperatures to create boundless energy. Now...

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

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

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

Light Emitting Diodes (LED ) are increasing gaining favour in both the domestic and commercial sectors; due to their efficiency, sustainability and durability...

Following on from my post on railway electrification voltages, I thought an introduction to traction substations would be a good idea. Traction substations...

One of the fundamental requirements of an alternating current distribution systems it to have the ability to change the magnitude of voltages.  It is more...

While not as popular as it once was, frame leakage protection does still have some use in some circumstances.  In essence frame leakage is an earth fault...