Method and apparatus for fault direction determination

Details Method and apparatus for fault direction determination Method and apparatus for fault direction determination

1979-05-14

1981-12-29

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

324 52, 361 84, H02H 328

Patent

active

043085652

ABSTRACT:
A method and apparatus for fault direction determination is disclosed wherein a capacitor is connected in series in a line or network having a relay arrangement or scheme possessing directional and distance characteristics. To prevent faulty tripping of the relay arrangement, caused by the effect of the series capacitance in the line, the relay arrangement is structured such that the integrity of the directional characteristics thereof is maintained. Positive tripping of the relay is maintained, especially in the event of near faults which usually are most affected by the action of the series capacitance.

REFERENCES:
patent: 3303390 (1967-02-01), Sonnemann
patent: 4092690 (1978-05-01), Wilkinson
patent: 4249124 (1981-02-01), De Mesmaeker

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