Dictionary of Electrical Engineering

Commonly used terms in the Electrical industry.

power follow
a fault condition, especially through a lightning arrester, in which power line current flows along a path through air or other insulation broken down by a high voltage impulse such as a lightning stroke to a conductor. See power fault arc.
power follow transformer
a rugged, high-current power transformer used in tests of lightning arresters to test the arrester's power follow arc suppression capability.
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