Thermal degradation characteristics of oil-filled cable joint with extremely degraded tan δ oil
Much of oil‐filled (OF) cable has been used for a long time as 66‐ to 500‐kV extrahigh‐voltage cable. Sometimes we can see extremely degraded tan δ oil (several tens of percent of tan δ, for example) in joint boxes, etc. The values of tan δ calculated by a simple combination model of paper/oil show...
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| Veröffentlicht in: | Electrical engineering in Japan 2012-01, Vol.178 (1), p.1-10 |
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| container_title | Electrical engineering in Japan |
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| creator | Ide, Kenichi Nakade, Masahiko Takahashi, Tohru Nakajima, Takenori |
| description | Much of oil‐filled (OF) cable has been used for a long time as 66‐ to 500‐kV extrahigh‐voltage cable. Sometimes we can see extremely degraded tan δ oil (several tens of percent of tan δ, for example) in joint boxes, etc. The values of tan δ calculated by a simple combination model of paper/oil show that the oil‐impregnated paper with such a high tan δ oil likewise has an extremely high tan δ, which must result in thermal breakdown. However, such an event has not taken place up to the present in actually operated transmission lines. This fact suggests that some mechanism for the suppression of tan δ has acted in the paper insulation impregnated with degraded tan δ oil. Therefore, we investigated in detail the tan δ characteristics of paper impregnated with extremely high tan δ oil. In addition, based on the investigation results, we developed a method for simulation of heat generation by dielectric loss in an OF cable joint (which has degraded tan δ oil). © 2011 Wiley Periodicals, Inc. Electr Eng Jpn, 178(1): 1–10, 2012; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.21184 |
| doi_str_mv | 10.1002/eej.21184 |
| format | Article |
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Sometimes we can see extremely degraded tan δ oil (several tens of percent of tan δ, for example) in joint boxes, etc. The values of tan δ calculated by a simple combination model of paper/oil show that the oil‐impregnated paper with such a high tan δ oil likewise has an extremely high tan δ, which must result in thermal breakdown. However, such an event has not taken place up to the present in actually operated transmission lines. This fact suggests that some mechanism for the suppression of tan δ has acted in the paper insulation impregnated with degraded tan δ oil. Therefore, we investigated in detail the tan δ characteristics of paper impregnated with extremely high tan δ oil. In addition, based on the investigation results, we developed a method for simulation of heat generation by dielectric loss in an OF cable joint (which has degraded tan δ oil). © 2011 Wiley Periodicals, Inc. Electr Eng Jpn, 178(1): 1–10, 2012; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.21184</description><identifier>ISSN: 0424-7760</identifier><identifier>EISSN: 1520-6416</identifier><identifier>DOI: 10.1002/eej.21184</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>joint box ; loss tangent ; oil-filled cable ; oil-impregnated paper ; simulation ; thermal degradation</subject><ispartof>Electrical engineering in Japan, 2012-01, Vol.178 (1), p.1-10</ispartof><rights>Copyright © 2011 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c2674-830fd41b40a50a8dfa0b80a88257d9280531efa5f07f73d593d5a2b0915f19253</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Feej.21184$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Feej.21184$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,777,781,1412,27905,27906,45555,45556</link.rule.ids></links><search><creatorcontrib>Ide, Kenichi</creatorcontrib><creatorcontrib>Nakade, Masahiko</creatorcontrib><creatorcontrib>Takahashi, Tohru</creatorcontrib><creatorcontrib>Nakajima, Takenori</creatorcontrib><title>Thermal degradation characteristics of oil-filled cable joint with extremely degraded tan δ oil</title><title>Electrical engineering in Japan</title><addtitle>Elect. Eng. Jpn</addtitle><description>Much of oil‐filled (OF) cable has been used for a long time as 66‐ to 500‐kV extrahigh‐voltage cable. Sometimes we can see extremely degraded tan δ oil (several tens of percent of tan δ, for example) in joint boxes, etc. The values of tan δ calculated by a simple combination model of paper/oil show that the oil‐impregnated paper with such a high tan δ oil likewise has an extremely high tan δ, which must result in thermal breakdown. However, such an event has not taken place up to the present in actually operated transmission lines. This fact suggests that some mechanism for the suppression of tan δ has acted in the paper insulation impregnated with degraded tan δ oil. Therefore, we investigated in detail the tan δ characteristics of paper impregnated with extremely high tan δ oil. In addition, based on the investigation results, we developed a method for simulation of heat generation by dielectric loss in an OF cable joint (which has degraded tan δ oil). © 2011 Wiley Periodicals, Inc. Electr Eng Jpn, 178(1): 1–10, 2012; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.21184</description><subject>joint box</subject><subject>loss tangent</subject><subject>oil-filled cable</subject><subject>oil-impregnated paper</subject><subject>simulation</subject><subject>thermal degradation</subject><issn>0424-7760</issn><issn>1520-6416</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp1kLFOwzAQQC0EEqUw8AdeGdKeHTtORtSWQlWBhIqQWMwlsamL2yAnUtv_4jv4JlJa2BhOd8N7NzxCLhn0GADvG7PoccZScUQ6THKIEsGSY9IBwUWkVAKn5KyuFwCgmEo75HU2N2GJnpbmLWCJjatWtJhjwKIxwdWNK2paWVo5H1nnvSlpgbk3dFG5VUPXrplTs2mCWRq_PTxpmQZX9OtzZ52TE4u-NheH3SVPN6PZ4DaaPozvBtfTqOCJElEagy0FywWgBExLi5Cn7ZFyqcqMpyBjZixKC8qquJRZO8hzyJi0LOMy7pKr_d8iVHUdjNUfwS0xbDUDvUuj2zT6J03L9vfs2nmz_R_Uo9Hk14j2RlvEbP4MDO86UbGS-vl-rB-HQ5m8DLiexN9VynWN</recordid><startdate>20120115</startdate><enddate>20120115</enddate><creator>Ide, Kenichi</creator><creator>Nakade, Masahiko</creator><creator>Takahashi, Tohru</creator><creator>Nakajima, Takenori</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20120115</creationdate><title>Thermal degradation characteristics of oil-filled cable joint with extremely degraded tan δ oil</title><author>Ide, Kenichi ; Nakade, Masahiko ; Takahashi, Tohru ; Nakajima, Takenori</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2674-830fd41b40a50a8dfa0b80a88257d9280531efa5f07f73d593d5a2b0915f19253</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>joint box</topic><topic>loss tangent</topic><topic>oil-filled cable</topic><topic>oil-impregnated paper</topic><topic>simulation</topic><topic>thermal degradation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ide, Kenichi</creatorcontrib><creatorcontrib>Nakade, Masahiko</creatorcontrib><creatorcontrib>Takahashi, Tohru</creatorcontrib><creatorcontrib>Nakajima, Takenori</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><jtitle>Electrical engineering in Japan</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ide, Kenichi</au><au>Nakade, Masahiko</au><au>Takahashi, Tohru</au><au>Nakajima, Takenori</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal degradation characteristics of oil-filled cable joint with extremely degraded tan δ oil</atitle><jtitle>Electrical engineering in Japan</jtitle><addtitle>Elect. Eng. Jpn</addtitle><date>2012-01-15</date><risdate>2012</risdate><volume>178</volume><issue>1</issue><spage>1</spage><epage>10</epage><pages>1-10</pages><issn>0424-7760</issn><eissn>1520-6416</eissn><abstract>Much of oil‐filled (OF) cable has been used for a long time as 66‐ to 500‐kV extrahigh‐voltage cable. Sometimes we can see extremely degraded tan δ oil (several tens of percent of tan δ, for example) in joint boxes, etc. The values of tan δ calculated by a simple combination model of paper/oil show that the oil‐impregnated paper with such a high tan δ oil likewise has an extremely high tan δ, which must result in thermal breakdown. However, such an event has not taken place up to the present in actually operated transmission lines. This fact suggests that some mechanism for the suppression of tan δ has acted in the paper insulation impregnated with degraded tan δ oil. Therefore, we investigated in detail the tan δ characteristics of paper impregnated with extremely high tan δ oil. In addition, based on the investigation results, we developed a method for simulation of heat generation by dielectric loss in an OF cable joint (which has degraded tan δ oil). © 2011 Wiley Periodicals, Inc. Electr Eng Jpn, 178(1): 1–10, 2012; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.21184</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/eej.21184</doi><tpages>10</tpages></addata></record> |
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| ispartof | Electrical engineering in Japan, 2012-01, Vol.178 (1), p.1-10 |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | joint box loss tangent oil-filled cable oil-impregnated paper simulation thermal degradation |
| title | Thermal degradation characteristics of oil-filled cable joint with extremely degraded tan δ oil |
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