Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
GROUND FAULT POINT LOCATING SYSTEM AND MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/141327
Kind Code:
A1
Abstract:
Provided is a ground fault point locating system for locating a ground fault point in a distribution system, said system being characterized by being provided with measurement devices that are respectively disposed at a plurality of locations in the distribution system and measure a physical quantity, which fluctuates in accordance with the power state of the distribution system, using a sensor mounted to each phase of a distribution line, and a ground fault point locating device that locates the ground fault point on the basis of the measured values of the physical quantity respectively measured by the measurement devices at the plurality of locations, and said system being further characterized in that the measurement devices are configured such that the sensor for each phase is covered by an outer case in order to improve the insulation performance between distribution lines of different phases.

Inventors:
OHARA, Hisayuki (INC. 4-33, Komachi, Naka-ku, Hiroshima-sh, Hiroshima 01, 〒7308701, JP)
KIMOTO, Atsunori (INC. 4-33, Komachi, Naka-ku, Hiroshima-sh, Hiroshima 01, 〒7308701, JP)
HASEGAWA, Kenichi (2-1, Ebara 5-chome, Shinagawa-k, Tokyo 11, 〒1428611, JP)
UCHIRO, Kazuyuki (2-1, Ebara 5-chome, Shinagawa-k, Tokyo 11, 〒1428611, JP)
Application Number:
JP2016/054325
Publication Date:
August 24, 2017
Filing Date:
February 15, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
THE CHUGOKU ELECTRIC POWER CO., INC. (4-33, Komachi Naka-ku, Hiroshima-sh, Hiroshima 01, 〒7308701, JP)
International Classes:
G01R31/08; G01R1/04
Foreign References:
JPS6367979U1988-05-07
JPH09163586A1997-06-20
JPH11318014A1999-11-16
JP2004061142A2004-02-26
Attorney, Agent or Firm:
ISSHIKI & CO. (Mita-Nitto Daibiru Bldg, 11-36 Mita 3-chome, Minato-k, Tokyo 73, 〒1080073, JP)
Download PDF: