This article gives an introduction to IEEE 485 method for the selection and calculation of battery capacity.

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

Often document control is dictated by project requirements, for example a particular organisation may have an existing numbering system. Existing company...

Recently I have seen a few interesting articles on viable cold fusion; the combining of atoms at room like temperatures to create boundless energy. Now...

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

This morning I was explaining how differential protection works to a junior engineer. To give him something to read I opened up the NPAG (Network Protection...

Lamps are the essential part of any luminaire. These are the light generating components. Since the advent of electrical lighting in the middle of the...

The following tables provide quick order of magnitude fault levels for a a range of typical low voltage situations.

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

One of the requirements to ensuring that everything works is to have equipment selected, manufactured and verified [tested] to IEC standards. Not all equipment...