Method and apparatus for detection of short circuits by phase mo

Details Method and apparatus for detection of short circuits by phase mo Method and apparatus for detection of short circuits by phase mo

1976-06-14

1977-12-13

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 3108

Patent

active

040631648

ABSTRACT:
A method of and apparatus for the detection of short-circuits on lines operated with voltages and currents containing an alternating component, by detecting the temporal progression of the voltage and current at a measurement location in the form of measurement voltages and measurement currents. From the measurement voltage and measurement current or from magnitudes derived therefrom there are formed traveling wave signals of the form:

REFERENCES:
patent: 2953722 (1960-09-01), Willis
patent: 3048744 (1962-08-01), Warrington
patent: 3378728 (1968-04-01), Humpage et al.
patent: 3379934 (1968-04-01), Hoel et al.
patent: 3590368 (1971-06-01), Esclangon
patent: 3651377 (1972-03-01), Souillard
patent: 3800215 (1974-03-01), Souillard
patent: 3898530 (1975-08-01), Perez-Cavero

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