Current transformer cooled by a circulating dielectric fluid

Details Current transformer cooled by a circulating dielectric fluid Current transformer cooled by a circulating dielectric fluid

1986-12-09

1988-04-19

Kozma, Thomas J.

Inductor devices

With temperature modifier

Hollow conductor coil

174 15BH, 174 15C, 336174, 336223, H01F 2708, H01F 4006

Patent

active

047392967

ABSTRACT:
A current transformer has a hollow tube made from an electrical conductor which is bent at its center so as to form a loop which functions as a primary winding and two parallel straight portions at the ends of the tube which function as leads for the primary winding. The tube has a longitudinally-extending fluid-carrying passageway for a dielectric fluid formed at its center. Both ends of the tube are open and communicate with the inside of a reservoir for a dielectric fluid. A longitudinally-extending electrically-insulating member is inserted into the fluid-carrying passageway of one of the straight portions of the tube so as to decrease the cross-sectional area of the passageway in that portion and increase its resistance to flow. The increase in flow resistance produces a temperature difference within the tube, promoting circulation of the dielectric fluid by convection.

REFERENCES:
patent: 3299383 (1967-01-01), Conner et al.
patent: 3686598 (1972-08-01), Ozawa et al.
patent: 3697914 (1972-10-01), Khrenor et al.
patent: 4467306 (1984-08-01), Morishita

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