Modern insulation testers are carefully designed to ensure that, as far as possible, the output they deliver is non-lethal. No one should, however, be tempted to verify this statement by “testing” either themselves or someone else: people vary...

The humble transistor is the basis for many of today’s technologies, from telephone networks to laptops and smartphones – so much so that it has been called the “nerve cell” of the modern age. But how many people know that the...

It has been proven over many years that the use of COMTRADE files is a comprehensive and accurate way of carrying out relay testing. It tests the performance of the complete relay scheme, and testing is fast as there is no need to make the extensive changes...

Energy distribution is the engine for all industrial and domestic activities, and as our dependency on electricity keeps rising, even seconds of interruption can have devastating effects. But in the age of the smart grid and Internet of Things, how secure...