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...

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...

Problems on achieving maximum voltage drop within an installation come up often. Depending where you live, local regulations will have different limits...

Insulation on a motor prevents interconnection of windings and the winding to earth.  When looking at motors, it is important to understand how the insulation...

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

The other day I came across an article in Technology Review on the development of a smart transformer. A professor at North Carolina State University is...

Straight forward list of some common motor faults.  If I have missed any other common faults, please take a bit of time to add them in as a comment below...

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...

Traditionally substations have used circuit breakers, current transformers (CT), voltage transformers (VT) and protection relays all wired together using...

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