Level gauge for oil-filled transformer, choke, or tap changer

Details Level gauge for oil-filled transformer, choke, or tap changer Level gauge for oil-filled transformer, choke, or tap changer

G - Physics

01

F

G01F 23/32 (2006.01) H01F 27/12 (2006.01)

Patent

CA 2523113

An electric power apparatus has a oil-filled vessel in which a float is connected to a float shaft that rotates as the float rises and falls with the level of oil. A level indicator has a display shaft extending along and pivotal about an axis, and coupled to the float shaft. An indicia display adjacent the shaft is swept by a pointer fixed on the shaft and juxtaposed with the indicia display so that the level of the oil in the vessel is indicated by the pointer. A disk fixed to the shaft has an outer periphery with a region of a shape having a radius varying angularly from one end of the region to an opposite end of the region. A noncontact proximity sensor is radially spacedly juxtaposed with the region of the disk for producing an output corresponding to the radial distance between the region and the sensor.

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