Method for producing toroidal tape cores for fault current safet

Details Method for producing toroidal tape cores for fault current safet Method for producing toroidal tape cores for fault current safet

1981-08-10

1984-04-10

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148 3155, H01F 100

Patent

active

044419406

ABSTRACT:
In order to improve the temperature constancy of induction boost in a standard working temperature range for fault current safety switches, a Ni-Mo-Cu-Fe alloy is provided whose nickel and copper content in a binary nickel-copper system is defined by a quadrangle of points A (80.5 wt. % Ni and 0 wt. % Cu), B (82 wt. % Ni and 0 wt. % Cu), C (70 wt. % Ni and 16.5 wt. % Cu) and D (70 wt. % Ni and 14.4 wt. % Cu) and whose molybdenum content, z, in wt. % satisfies the relation:

REFERENCES:
patent: 2891883 (1959-06-01), Howe
patent: 3125472 (1964-03-01), Yamamoto et al.
patent: 3546031 (1970-12-01), Pfeifer et al.
patent: 3657025 (1972-04-01), Pfeifer
patent: 3871927 (1975-03-01), Masumoto et al.

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