ARC DETECTION SENSOR UTILIZING DISCRETE INDUCTORS

摘要

An alternating current sensing apparatus comprises at least two coils (18, 20), each comprising a plurality of turns of wire around a core (22, 24) whi ch defines a linear axis. The coils are mounted in spaced relation on a support surface (16) so as to define an intermediate space (25), and said coils bein g electrically coupled additively in series. The coils produce a detectable signal in response to an alternating electrical current passing through a conductor (30) which extends through the intermediate space (25).