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 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...

Everything physical in electrical engineering from insulations to conductors revolves around materials. Here we are listing common materials along with...

When selecting a generator, there are inherent limits on the active and reactive power which can be delivered. Generators are normally sized for a certain...

Circuit breakers are switching devices whose primary function is to isolate parts of an electrical distribution system in the even of abnormal conditions...

I think this post is going to be helpful to several of our readers. While the IEC low voltage circuit breaker Standard [IEC 60947-2, Low voltage switchgear...

Just added a page to the tools, which will allow you to calculate the synchronous speed, slip and rated torque for an induction motor. Not a particularly...

In electrical engineering, Network Theory is the study of how to solve circuit problems. By analyzing circuits, the engineer looks to determine the various...

Visitors who like to type web address rather then click menus may be interested in how our URL structure works.

Lead acid batteries are cost effect and reliable, making them suitable for many applications.This note examines topics of interest associated with the...