Back-up for high voltage cable pressurizing system

Pumps – Plural pumps with individual or relative control

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Details

417 53, 417393, 92 5R, F04B 2304, F04B 4306

Patent

active

044190565

ABSTRACT:
A back-up system is provided for a pumping plant or a pressure reservoir system used to maintain insulating oil under pressure in high voltage submarine power cables which includes a gas driven membrane pump to insure a small outflow of oil at a rupture point in the power cable to prevent water from penetrating the cable. The proper operation of the membrane pump is insured by introducing degasified oil at the drive side of the pump during the stand-by and test modes of operation of the back-up system.

REFERENCES:
patent: 1627257 (1927-05-01), Stevens
patent: 2817396 (1957-12-01), Booth
patent: 3388207 (1968-06-01), Lansch
patent: 3782863 (1974-01-01), Rupp
patent: 4080107 (1978-03-01), Ferrentino
patent: 4341508 (1982-07-01), Rambin, Jr.

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