A detection device for a power transformer breather

Abstract

A detection device to detect an operating condition of air-drying salts contained in a breather for power transformers operatively coupleable to the breather is described. The detection device comprises illumination means comprising at least a light source adapted to illuminate airdrying salts contained in the breather with a first light radiation. The detection device also comprises acquisition means comprising at least a light sensor adapted to receive a second light radiation coming from air-drying salts contained in the breather. The acquisition means is configured to provide first detection signals indicative of the color of the second light radiation. The detection device further comprises a control unit for controlling operation of the detection device. The control unit is configured to receive and process the first detection signals.

Dependencies are inferred from the claim text.