Vapor lift pump for vapor-cooled transformers

Details Vapor lift pump for vapor-cooled transformers Vapor lift pump for vapor-cooled transformers

1976-10-12

1978-03-07

Grimley, Arthur T.

Electricity: conductors and insulators

With fluids or vacuum

With cooling or fluid feeding, circulating or distributing

165105, 417209, H01F 2718

Patent

active

040781496

ABSTRACT:
Electrical inductive apparatus, such as a transformer, cooled by a liquid dielectric having a boiling point within the normal operating temperature range of the apparatus. A vapor lift pump, with few or no moving parts, recirculates the liquid dielectric through a conduit which extends between a supply reservoir and a distribution point, by means of a pressure to velocity energy conversion provided by an orifice in a chamber located in the supply reservoir. The use of a vapor lift pump enables significant improvement in the reliability and power requirements of the apparatus.

REFERENCES:
patent: 1003523 (1911-09-01), Seymour
patent: 2845472 (1958-07-01), Narbutovskih
patent: 3261905 (1966-07-01), Allen
patent: 3819301 (1974-06-01), Jaster et al.
patent: 3834835 (1974-09-01), Jaster et al.
patent: 3887759 (1975-06-01), Staub et al.
patent: 4011535 (1977-03-01), Kosky et al.

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