Title:
METHOD FOR PREDICTING AMOUNT OF COPPER SULFATE PRODUCED IN OIL-FILLED ELECTRIC DERIVE, METHOD FOR DIAGNOSING OCCURRENCE OF ABNORMAL EVENT, METHOD FOR PREDICTING INITIAL CONCENTRATION OF DIBENZYL DISULFIDE IN INSULATING OIL, AND METHOD FOR DIAGNOSING POSSIBILITY OF OCCURRENCE OF ABNORMAL EVENT
Document Type and Number:
WIPO Patent Application WO/2011/080812
Kind Code:
A1
Abstract:
Disclosed is a method for predicting the amount of copper sulfide produced in an oil-filled electric device, which comprises the following steps (1) and (2): (1) measuring the concentration of at least one specific product contained in an insulating oil collected from the oil-filled electric device; and (2) predicting the amount of copper sulfide produced based on the concentration of the specific product, wherein the specific product comprises at least one compound selected from the group consisting of benzyl alcohol, benzaldehyde, benzoic acid and dibenzyl sulfoxide.
Inventors:
TOYAMA, Satoru (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
外山 悟 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
MIZUNO, Kota (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
水野 康太 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
TANIMURA, Junji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
外山 悟 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
MIZUNO, Kota (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
水野 康太 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
TANIMURA, Junji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2009/071739
Publication Date:
July 07, 2011
Filing Date:
December 28, 2009
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目７番３号 Tokyo, 〒1008310, JP)
TOYAMA, Satoru (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
外山 悟 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
MIZUNO, Kota (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
水野 康太 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目７番３号 Tokyo, 〒1008310, JP)
TOYAMA, Satoru (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
外山 悟 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
MIZUNO, Kota (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
水野 康太 (〒10 東京都千代田区丸の内二丁目７番３号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
International Classes:
H01F27/00; H01F41/00
Attorney, Agent or Firm:
FUKAMI, Hisao et al. (Fukami Patent Office, Nakanoshima Central Tower 22nd Floor, 2-7, Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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