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Title:
PARTIAL DISCHARGE DETECTING DEVICE FOR GAS-INSULATED ELECTRICAL EQUIPMENT
Document Type and Number:
Japanese Patent JP2016142641
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a simple and reliable partial discharge detecting device, utilizing wireless transmission, for gas-insulated electrical equipment.SOLUTION: Gas-insulated electrical equipment having inside a high-voltage conductor 102 for electrical transmission, a plurality of partial discharge detectors within a totally closed container 101 in which insulative gas is sealed and a plurality of partial discharge diagnosing devices outside the totally closed container 101 constitute a partial discharge detecting device. The partial discharge detectors receive partial discharge signals 109 generated in the totally closed container 101 and transmit the signals into the totally closed container 101 over a carrier wave 110. The partial discharge signals 109 transmitted over the carrier wave 110 are received and transmitted via other partial discharge detectors, and further conveyed from the partial discharge detector nearest to partial discharge diagnosing devices to partial discharge diagnosing devices arranged outside the totally closed container 101.SELECTED DRAWING: Figure 1

Inventors:
MORIYAMA TOMOHIRO
ICHIMURA SATOSHI
NUKAGA ATSUSHI
ROKUNOHE TOSHIAKI
KOBAYASHI TAKESHI
HIROSE MAKOTO
Application Number:
JP2015018941A
Publication Date:
August 08, 2016
Filing Date:
February 03, 2015
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
G01R31/12; G01R29/08; H01H33/56; H02G5/06
Attorney, Agent or Firm:
Manabu Inoue
Yuji Toda
Shigemi Iwasaki