Per unit fault calculations is a method whereby system impedances and quantities are normalised across different voltage levels to a common base. By removing...
At the beginning of the year China put the world's first 1,000 kV UHV transmission system into operation. Transmitting power at over a million volts is...
Battery powered cars are a hot topic and widely debated. The pros, cons, issues and time frames can be talked about endlessly. An article by the Telegraph...
A single phase system is perhaps the most common type of system most people are familiar with. This is what people have in their homes and what appliances...
I was digging in my bookshelf and came across the 80th Anniversary Association of Mine Resident Engineers, Papers and Discussions Commemorative Edition...
Visitors who like to type web address rather then click menus may be interested in how our URL structure works.
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...
This article gives an introduction to IEEE 485 method for the selection and calculation of battery capacity.
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...
Problems on achieving maximum voltage drop within an installation come up often. Depending where you live, local regulations will have different limits...
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