Title:
FAULT LOCATION METHOD FOR TRANSMISSION LINE
Document Type and Number:
Japanese Patent JPH0815363
Kind Code:
A
Abstract:
PURPOSE: To obtain a simplified fault location system requiring only a fault locater disposed at one end of a transmission line.
CONSTITUTION: The surge propagation speed (v) is previously determined for an objective transmission line 2 and a time T1, being elapsed before arrival of 2N-th surge wave intruded into a transmission line 2 after arrival of (2N-1)th surge wave (N=1, 2, 3), is measured using a surge sensor 4 disposed at one end of the transmission line 2. A time T2 being elapsed before arrival of (M+2)th wave (M=1, 2, 3,...) after arrival of M-th wave is also measured for two waves. The distance LX from one end of the transmission line 2 to a fault point is determined according to a formula; LX=vx(T1-T2)/2.
Inventors:
KOIZUMI HIROSHI
HIGUCHI KAZUHIRO
KAWAKATSU TAKESHI
HIGUCHI KAZUHIRO
KAWAKATSU TAKESHI
Application Number:
JP15190494A
Publication Date:
January 19, 1996
Filing Date:
July 04, 1994
Export Citation:
Assignee:
KANSAI ELECTRIC POWER CO
NISSIN ELECTRIC CO LTD
NISSIN ELECTRIC CO LTD
International Classes:
G01R31/08; (IPC1-7): G01R31/08
Attorney, Agent or Firm:
Miyai Akio
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