Method for locating a fault point on a transmission line

Details Method for locating a fault point on a transmission line Method for locating a fault point on a transmission line

1979-10-24

1982-02-02

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 3108

Patent

active

043141994

ABSTRACT:
A fault component current is obtained in response to a fault at a fault point within a protective section on a transmission line at one end of the protective section. Assuming that a phase difference between the fault component current and a fault point current flowing through the fault point is known, the fault point current is obtained on the basis of the fault component current and the phase difference. Then, a voltage at an assumed fault point is obtained by using voltage and current at the one end of the protective section and the line constants of the protective section. An assumed fault point is then obtained to permit the voltage at the assumed fault point to be in phase with the fault point current. The assumed fault point is assumed to be a true fault point.

REFERENCES:
patent: 4063300 (1977-12-01), Paddison et al.
patent: 4251766 (1981-02-01), Souillard
Westlin et al., Newton-Raphson Technique Applied to the Fault Location Problem IEEE Paper No. A76334-3, Apr. 26, 1976, pp. 1-6.

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