Understanding an Arrester V I Characteristic Curve

While the voltage-current (VI) characteristic of a surge arrester's varistor is one of its most important parameters, users have not seen this characteristic represented in graphical form. Read More >

Surge Protection of Substations

Protecting substations from lightning and switching surges that lead to insulation flashover has always been a key issue. Options on how best to mitigate high voltage stresses have changed substantially. Read More >