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Title:
FURAN CONCENTRATION QUANTIFYING METHOD, TRANSFORMER DETERIORATION DIAGNOSIS METHOD USING SAME, AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/033892
Kind Code:
A1
Abstract:
Disclosed is a furan concentration quantifying method for efficiently managing, on-site, the deterioration condition of a transformer. The furan concentration quantifying method comprises the steps of: mixing a color reagent into an extraction solution, which contains furan extracted from a transformer oil sample, and reacting same so as to measure the degree of color development of the extraction solution; and quantifying a furan concentration for the degree of color development of the extraction solution through correction based on the correlation between precision analysis and simple analysis, wherein the precision analysis can obtain a quantitative value through color column separation by using high performance liquid chromatography (HPLC) to be performed in a laboratory in order to analyze a furan compound in transformer oil, and the simple analysis can obtain, on-site, a chromaticity value for actual transformer samples.

Inventors:
PARK HYUN-JOO (KR)
KWAK BYEONG-SUB (KR)
KIM BEOM-JOO (KR)
KIM AH-REUM (KR)
JUN TAE-HYUN (KR)
Application Number:
PCT/KR2020/007489
Publication Date:
February 25, 2021
Filing Date:
June 10, 2020
Export Citation:
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Assignee:
KOREA ELECTRIC POWER CORP (KR)
International Classes:
G01N33/28; G01N1/38; G01N21/78; G01N30/02; G01N30/88; G01N31/22; H01F27/12
Foreign References:
KR101231586B12013-02-08
KR102007241B12019-08-06
KR101333092B12013-11-27
Other References:
HUMBLET OLIVIER, WILLIAMS PAIGE L., KORRICK SUSAN A., SERGEYEV OLEG, EMOND CLAUDE, BIRNBAUM LINDA S., BURNS JANE S., ALTSHUL LARIS: "Predictors of Serum Dioxin, Furan, and PCB Concentrations among Women from Chapaevsk, Russia", ENVIRONMENTAL SCIENCE & TECHNOLOGY, vol. 44, no. 14, 25 June 2010 (2010-06-25), pages 5633 - 5640, XP055783612, ISSN: 0013-936X, DOI: 10.1021/es100976j
NKOSENYE SIDWELL MTETWA: "Accuracy of furan analysis in estimating the degree of polymerization in power transformers", MASTER'S THESIS, 1 January 2011 (2011-01-01), pages 1 - 23, XP055783621
Attorney, Agent or Firm:
HANYANG PATENT FIRM (KR)
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