Equipment for and methods of locating the position of a fault on

Details Equipment for and methods of locating the position of a fault on Equipment for and methods of locating the position of a fault on

1989-09-06

1991-12-10

Teska, Kevin J.

Boots, shoes, and leggings

324522, 364483, G06F 1556, G01R 3108

Patent

active

050724037

ABSTRACT:
An equipment for locating the position of a fault (9) on a power transmission line (7) between two ends (11,13) of the line (7) comprising: a voltage (15A,B) and a current (17A,B) sensor located at each end (11,13) of the line (7) for deriving signals representative of the voltage V.sub.S,V.sub.R and current I.sub.S,I.sub.R at each end (11,13); and two interlinked microprocessors (21A,B), one located at each end (11,13) of the line (7), for calculating the distance x of the fault (9) from one end of the line (11) utilizing the signals and equations of the form:

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E. O. Schweitzer, "Evaluation and Development of Transmission Line Fault Locating Techniques Which Use Sinusoidal Steady-State Information", Computers and Electrical Engineering, U.S.A., 10, (4), 1983, pp. 269-278.
Le, H. H., Nguyen, C. T.: "System for Location and Analysis of Faults in High Voltage Transmission Lines", Bull. Sci. Assoc. Ing. Electr. Inst. Electrotech. Montegiore, 1981, 94, 4, pp. 129-134.
IEE Trans. on Power Apparatus and Systems, vol. PAS-101, Nos. 8/9, Aug.-Sep. 1982, pp. 2892-2898, IEEE, New York, U.S.; T. Takagi et al, "Development of a New Type Fault Locator Using the One-Terminal Voltage and Current Data".
Patent Abstracts of Japan, vol. 12, No. 125 (P-691), (2972), Apr. 19, 1988, JP-A-62249078 (Chubu Electric Power): 30-10-1987.

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