Cooling apparatus for an electric cable
AssigneeSiemens Aktiengesellschaft
InventorFritz Schmidt
Life of this patent
Estimating the term…
Abstract
The invention concerns apparatus for cooling an electric cable which comprises superconducting inner and outer conductors, is subdivided into at least two cable sections and is provided with cable terminations in which these inner and outer conductors are connected with respective inner and outer ordinary conductors. According to the invention, a common coolant stream for the inner conductors and inner ordinary conductors as well as for the outer conductors and outer ordinary conductors is provided for each cable termination and the cable section associated with it, the coolant being fed-in at that end of the cable section which is not connected with the cable termination. With this simple arrangement, quantities of dissipation heat produced can be removed to refrigeration machinery with relatively high efficiency.
Claims19
Apparatus for cooling an electrical cable, having connectrically arranged inner and outer superconductor conductors at high voltage and zero voltage respectively, to a low temperature, said cable including means at each end terminating said superconductor conductors, each cable termination having concentric inner and outer ordinary conductors, comprising:
- a. means dividing the electrical cable into at least two cable sections whereby each cable section will have its ends defined respectively by said means dividing and one of the cable terminations;
- b. first coolant stream means for commonly forcing coolant past the inner superconductor conductor of said electrical cable in both of said sections and past each inner ordinary conductor in each of said cable terminations;
- c. second coolant stream means for commonly forcing coolant past the outer superconductor conductor of both sections of said electrical cable and past each outer ordinary conductor in said cable terminations;
- d. a cooling station for maintaining a supply of coolant;
- e. means for applying coolant from said cooling station to said first and second coolant stream means commonly at said means dividing said cable into two cable sections;
- and
- f. return means for returning the coolant to said cooling station after said coolant passes through said superconductor conductors and said ordinary conductors of said cable terminations.
Dependencies are inferred from the claim text.