This is the last in a series of articles about power factor (PF) and dissipation factor (DF) tests, which are widely used to assess insulation condition in transformers and other electrical assets. The first three articles, which are still available online,...

Effective earthing is essential for the safe operation of every electrical system and the only way to ensure that earthing installations are effective  and that they remain so, is to test them rigorously and regularly.

Wherever electrical power is used and distributed, cable reliability and the ability to find and quickly rectify cable faults are issues of the utmost importance. Fast and efficient cable fault location is vital to keep customer downtime to a minimum and...