LOAD CURRENT SENSING POWER DISTRIBUTION TRANSFORMER

摘要

A load current sensing power distribution transformer (1) comprising a sensor comprising a sensor coil (6) wound on a magnetic material core (7) and mounted on the transformer core (5) or mounted in the proximity of the transformer windings (2,3) electrostatically shielded from the transformer windings. Also a method for measuring the current being drawn from a power distribution transformer. The voltage or current induced by the leakage flux from the transformer core within the transformer is sensed and the voltage or current signal is processed (Fig 2).