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While there are a vast array of cable insulation materials, these are often divided into two general types; Thermoplastic or Thermosetting. For example...

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...

American inventor Thomas Alva Edison was born in Milan, Ohio on February 11, 1847. He was the youngest of seven children and received little formal schooling...

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 ...

Fault calculations are one of the most common types of calculation carried out during the design and analysis of electrical systems. These calculations...

A single phase system is perhaps the most common type of system most people are familiar with. This is what people have in their homes and what appliances...

IEC 61439 'Low-voltage switchgear and controlgear assemblies', specifies standard arrangements of switchboard (call forms of internal separation). The...

Electrical notes are a collaborative collection of electrical engineering information and educational material. Any registered user can add content. ...

This is the second post in a series of two on periodic electrical inspections. In the first post, I discussed how often inspections should be carried out...

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...