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 standard aims to consolidate AC and traction voltages within the industry and defines the following bands: band 1 - A.C. systems 100 V to 1...
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...
Request to look at induction motor starting time have come up a few times on the site. Hopefully in this post, I give you guys some idea on how to calculate...
The (relatively new) switchgear and control gear standard, IEC 61439 'Low-voltage switchgear and controlgear assemblies' has three methods which can be...
Maxwell's Equations are a set of fundamental relationships, which govern how electric and magnetic fields interact. The equations explain how these fields...
If you have no idea how electrical circuits work, or what people mean then they talk about volts and amps, hopefully I can shed a bit light. I’m intending...
Control theory looks at how systems work and are controlled from a mathematical view. This note gives a brief introduction to some of the concepts – more...
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...
Modelica is an open source (free) software language for modelling complex systems. Having never used it before, I thought I would download a development...
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