Distribution transformer

Details Distribution transformer Distribution transformer

2005-07-05

2005-07-05

Reichard, Dean A. (Department: 2831)

Electricity: conductors and insulators

Insulators

With insulator-supporting or attaching means

C174S0170VA, C174S018000, C174S0170LF, C174S037000, C174S0110BH, C174S0120BH, C174S0140BH, C174S015600, C174S016100, C174S015600, C174S016100, C174S0170GF, C174S0170CT, C174S050000, C174S050510, C336S065000, C336S067000, C336S092000, C336S090000, C336S059000, C336S058000, C336S060000, C165S130000, C165S131000, C165S170000, C220S003940

Reexamination Certificate

active

06914195

ABSTRACT:
An oil-filled pole-mounted distribution transformer comprises a tank housing a transformer core-coil assembly immersed in cooling oil. The tank is made of a corrosion-proof composite material and a radiator is provided for cooling the oil. The radiator is external to the tank and has a hot oil inlet and a cool oil outlet located at different levels into the tank for causing a natural circulation of oil through the radiator by thermal siphoning.

REFERENCES:
patent: 3599134 (1971-08-01), Galloway
patent: 3710002 (1973-01-01), Link
patent: 3772624 (1973-11-01), Keogh
patent: 4209064 (1980-06-01), Cacalloro et al.
patent: 4745966 (1988-05-01), Avery
patent: 6147581 (2000-11-01), Rancourt et al.
Claude Paradis; “Design Characteristics of Submersible Solid Insulation Distribution Transformers”; MEA—1999 Engineering and Operations Conference, Toronto Airport Marriot Hotel, Jan. 13-15, 1999.
“The Solid Distribution Transformer (SDT) ”.

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