The calculation of current in a three phase system has been brought up on our site feedback and is a discussion I seem to get involved in every now and...

GE have put together a time-lapse video shown flight take-off and landings at some airports. An interesting view:

Depending where in the world you work, you are likely following one of two standards International Electrotechnical Commission (IEC) National...

A load flow study is the analysis of an electrical network carried out by an electrical engineer. The purpose is to understand how power flows around...

The IEC publishes a series of documents and rules governing the preparation of documents, drawings and the referencing of equipment.   Depending on country...

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

A UPS is an uninterruptible power supply.  It is a device which maintains a continuous supply of electrical power, even in the event of failure of the...

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

HTML supports a variety of entity symbols which can be entered using either numbers or an entity name.  The number or name is preceded by the ‘&’ sign...

Capacitors have numerous applications in electrical and electronic applications.  This note examines the use of capacitors to store electrical energy....