Cooling duct arrangement for transformer windings

Details Cooling duct arrangement for transformer windings Cooling duct arrangement for transformer windings

1980-10-06

1982-08-24

Kozma, Thomas J.

Inductor devices

With temperature modifier

Ventilating passages

H01F 2710

Patent

active

043463614

ABSTRACT:
A transformer cooling duct arrangement wherein the transformer winding sections are encompassed by an inner and outer insulating oil barrier and inner and outer blocks are employed to direct the oil flow in a labyrinth path throughout the winding sections. The inner oil block consists of a plurality of individual slotted blocks slidably mounted between corresponding pairs of radial spacers. The slidably mounted block arrangement allows the individual blocks to tightly contact the inner barrier during the transformer dry treatment process.

REFERENCES:
patent: 1424016 (1922-07-01), Haworth
patent: 1523378 (1925-01-01), Lennox
patent: 1549525 (1925-08-01), Cooney
patent: 1600042 (1926-09-01), Holbrook
patent: 2756397 (1956-08-01), Cederstrom et al.
patent: 2912658 (1959-11-01), Paluex
patent: 3500272 (1970-03-01), Campbell et al.

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