IEC 60947 is the circuit breaker standard and covers the marking of breakers in detail. Any manufacturer following this standard should comply with the...

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...

Most installations involve some form of lightning protection system which is connected to an earth electrode.  The function of the earth electrode is to...

Many medium voltage (MV) indoor switchgear rooms  exist worldwide. The complexity of these rooms varies considerably depending on location, function and...

I was reminded of Occam's Razor while reading a book. It's quite a simple principal of logic which has stood the test of time and is accepted as central...

Modelica is an open source (free) software language for modelling complex systems. Having never used it before, I thought I would download a development...

In 2011, with the introduction of it’s Panda search ranking algorithms, Google introduced tools for determining the original author of posts.  The intention...

‘Kept looking at a card, y’see? Kept looking at it. Welcome back Bottle. Gods below welcome home. The Crippled God A Tale of the Malazan Book of the...

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...

Many questions sent in to the site are in connection with motor starting and in particular star-delta.  For all but the simplest application, there is...