Fundamental electrical engineering concepts and theory
Current transformers (CTs) are used to convert high level currents to a smaller more reasonable level for use as inputs to protection relays and metering...
When sizing cables nearly, everyone uses some form of software. This ranges from homespun spreadsheets to complex network analyses software. Each has its...
It's been a busy few months on different projects or busy couple of decades depending on how I look at it. I can say that on the odd (frequent) occasion...
GE have put together a time-lapse video shown flight take-off and landings at some airports. An interesting view:
Electromechanical relays have been the traditional backbone of electrical protection systems. While over recent years these have been replaced by microprocessor...
The new standard IEC 61439 replaces the old 60439. Compared to the old standard, the new 61439 is a more clearly defined and takes into account the assembly...
If you want to check a circuit is dead (not live), you should always use the three point method. First check a known live circuit, then check the dead...
The standard aims to consolidate AC and traction voltages within the industry and defines the following bands: band 1 - A.C. systems 100 V to 1...
Most installations involve some form of lightning protection system which is connected to an earth electrode. The function of the earth electrode is to...
Modelica is an open source (free) software language for modelling complex systems. Having never used it before, I thought I would download a development...
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