Fault finder

Details Fault finder Fault finder

1984-01-27

1986-02-11

Wise, Edward J.

Boots, shoes, and leggings

364481, 324 52, 361 80, G01R 3108, G06F 1520

Patent

active

045702314

ABSTRACT:
A fault finder for locating faults along a high voltage electrical transmission line. Real time monitoring of background noise and improved filtering of input signals is used to identify the occurrence of a fault. A fault is detected at both a master and remote unit spaced along the line. A master clock synchronizes operation of a similar clock at the remote unit. Both units include modulator and demodulator circuits for transmission of clock signals and data. All data is received at the master unit for processing to determine an accurate fault distance calculation.

REFERENCES:
patent: 4107778 (1978-08-01), Nii et al.
patent: 4313169 (1982-01-01), Takagi et al.
patent: 4466071 (1984-08-01), Russell, Jr.
Automatic Fault Locator for Bonneville Power Administration; Marihart et al, IEEE Conference Paper C 72 513-0, 1972.
Fault Location Methods for Overhead Lines; Marihart et al, IEEE Conference Paper 57-160, 1956.

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