Fundamental electrical engineering concepts and theory
The widely used United Sates standard ANSI/IEEE C37.2 'Electrical Power System Device Function Numbers, Acronyms, and Contact Designations' deals with...
The correct sizing of current transformers is required to ensure satisfactory operation of measuring instruments and protection relays. Several methods...
This is the first of two posts on the resistance of conductors. In the next post I will look at the ac resistance, including skin effect and we deal with...
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...
We have had the Wiki with us for a long time now, but at last I have decided to say bye bye – more details on why below.
Coils of wire on the rotor carry a d.c. current which generates a magnetic field. A stator magnetic field is created using either permanent magnets or...
The (relatively new) switchgear and control gear standard, IEC 61439 'Low-voltage switchgear and controlgear assemblies' has three methods which can be...
Everything physical in electrical engineering from insulations to conductors revolves around materials. Here we are listing common materials along with...
Cable insulation is used to provide electrical separation between conductors of a cable. During the historical development of cables, numerous types...
Motor starting and its associated problems are well-known to many people who have worked on large industrial processes. However, these things are, of course...
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