Generators are some of the most critical and expensive items of equipment in a power system and they therefore require adequate electrical protection from internal faults, external faults and abnormal system conditions. Because ground faults are more common...

The unexpected shutdown of an HV rotating machine is, in almost every instance, hugely disruptive and very costly. Research has shown that the most common reason for such shutdowns is a fault in the stator winding insulation – such faults account for...