Apparatus and method for protection of electric power transmissi

Details Apparatus and method for protection of electric power transmissi Apparatus and method for protection of electric power transmissi

1980-03-14

1982-05-04

Wise, Edward J.

Boots, shoes, and leggings

364900, 361 80, G06F 1556, H02H 300

Patent

active

043285511

ABSTRACT:
In a protective relaying apparatus for an electric power transmission system and the like there is provided a nonvolatile memory device in which various values required for protection of the system are written electrically. An input device designates addresses in the memory device and memorizes values in the addresses under control of a control device. A digital processing device carries out the protective operations for the electric power transmission system based on the values thus set in the non-volatile memory device.

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patent: 4183072 (1980-01-01), Takagi et al.
patent: 4218737 (1980-08-01), Buscher et al.
patent: 4228476 (1980-10-01), Okita et al.

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