Natural circulation type evaporative cooling power cable line

Details Natural circulation type evaporative cooling power cable line Natural circulation type evaporative cooling power cable line

1978-07-21

1980-07-29

Grimley, Arthur T.

Electricity: conductors and insulators

With fluids or vacuum

With cooling or fluid feeding, circulating or distributing

165105, H01B 734

Patent

active

042152348

ABSTRACT:
A natural circulation type evaporative cooling electric power cable line having a circulation system for the cooling medium wherein a cooling medium passage within the electric power cable line has an inlet and an outlet respectively connected with a cooling unit positioned at a level higher than the cooling medium passages inlet of the cable by means of a feeding pipe and a return pipe with a liquefiable gas cooling medium sealed therein. At least a riser portion of the return pipe leading to the cooling unit is installed below the level of the cooling medium return passage outlet of the cable, and the return pipe is provided with a device for boosting circulation force without positive displacement mechanism (such as a pump or the like), so as to make the cooling medium circulate even in a low load current region by exceeding the current allowable without cooling for that cable.

REFERENCES:
patent: 3609206 (1971-09-01), McConnell
patent: 3736364 (1973-05-01), Kubo
patent: 3962529 (1976-06-01), Kubo

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