The Use of Partial Discharges as an Online Monitoring System for Underground Cable Joints
With their vast amount of joints, underground cable systems are expensive to maintain; therefore, measurement equipment must be cost-effective. This study proposes the long-term placement of partial-discharge (PD) monitoring units at cable joints. The unit consists of a peak detect circuit and a dig...
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| Veröffentlicht in: | IEEE transactions on power delivery 2011-07, Vol.26 (3), p.1585-1591 |
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| creator | WU, Ruay-Nan CHANG, Chien-Kuo |
| description | With their vast amount of joints, underground cable systems are expensive to maintain; therefore, measurement equipment must be cost-effective. This study proposes the long-term placement of partial-discharge (PD) monitoring units at cable joints. The unit consists of a peak detect circuit and a digital signal processor for acquiring and converting the sensors' PD signals into discharge sequence data, whose data are then provided to a remote computer for analysis and display of the condition of the cable joint. Finally, a cable joint with artificial defects was tested by accelerated aging tests to verify the performance of the equipment. Two characteristics, namely, the average discharge quantity (Q ave ) and the discharge phase region, are proposed and plotted against each other to render an evolution locus, which reveals a shape of an upside-down letter N. The locus allows a judgment to be made on the state of the insulation in the cable joint. These results further justify work to further develop the method as an online cable monitoring system. |
| doi_str_mv | 10.1109/TPWRD.2011.2124474 |
| format | Article |
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This study proposes the long-term placement of partial-discharge (PD) monitoring units at cable joints. The unit consists of a peak detect circuit and a digital signal processor for acquiring and converting the sensors' PD signals into discharge sequence data, whose data are then provided to a remote computer for analysis and display of the condition of the cable joint. Finally, a cable joint with artificial defects was tested by accelerated aging tests to verify the performance of the equipment. Two characteristics, namely, the average discharge quantity (Q ave ) and the discharge phase region, are proposed and plotted against each other to render an evolution locus, which reveals a shape of an upside-down letter N. The locus allows a judgment to be made on the state of the insulation in the cable joint. These results further justify work to further develop the method as an online cable monitoring system.</description><identifier>ISSN: 0885-8977</identifier><identifier>EISSN: 1937-4208</identifier><identifier>DOI: 10.1109/TPWRD.2011.2124474</identifier><identifier>CODEN: ITPDE5</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Accelerated aging tests ; Applied sciences ; Cable insulation ; Cable joint ; Cables ; Digital broadcasting ; digital signal processor (DSP) ; Digital signal processors ; Discharges ; Electric connection. Cables. Wiring ; Electrical engineering. Electrical power engineering ; Electrical power engineering ; Exact sciences and technology ; Insulation ; insulation diagnosis ; Joints ; Monitoring ; Monitoring systems ; On-line systems ; Online ; online monitoring ; Partial discharges ; partial discharges (PDs) ; Power cables ; Power networks and lines ; Signal processing ; Testing. Reliability. 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This study proposes the long-term placement of partial-discharge (PD) monitoring units at cable joints. The unit consists of a peak detect circuit and a digital signal processor for acquiring and converting the sensors' PD signals into discharge sequence data, whose data are then provided to a remote computer for analysis and display of the condition of the cable joint. Finally, a cable joint with artificial defects was tested by accelerated aging tests to verify the performance of the equipment. Two characteristics, namely, the average discharge quantity (Q ave ) and the discharge phase region, are proposed and plotted against each other to render an evolution locus, which reveals a shape of an upside-down letter N. The locus allows a judgment to be made on the state of the insulation in the cable joint. These results further justify work to further develop the method as an online cable monitoring system.</description><subject>Accelerated aging tests</subject><subject>Applied sciences</subject><subject>Cable insulation</subject><subject>Cable joint</subject><subject>Cables</subject><subject>Digital broadcasting</subject><subject>digital signal processor (DSP)</subject><subject>Digital signal processors</subject><subject>Discharges</subject><subject>Electric connection. Cables. Wiring</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Electrical power engineering</subject><subject>Exact sciences and technology</subject><subject>Insulation</subject><subject>insulation diagnosis</subject><subject>Joints</subject><subject>Monitoring</subject><subject>Monitoring systems</subject><subject>On-line systems</subject><subject>Online</subject><subject>online monitoring</subject><subject>Partial discharges</subject><subject>partial discharges (PDs)</subject><subject>Power cables</subject><subject>Power networks and lines</subject><subject>Signal processing</subject><subject>Testing. Reliability. Quality control</subject><subject>Underground and submarine networks</subject><subject>Underground cables</subject><subject>Various equipment and components</subject><issn>0885-8977</issn><issn>1937-4208</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE1vEzEQhi0EEqHwB-BiISFOG8Zf2D6iFCioqBUkQpwsr3ecutrYxd4c-u_ZNFEPSCPNYZ731egh5DWDJWNgP6yvf_88X3JgbMkZl1LLJ2TBrNCd5GCekgUYozpjtX5OXrR2CwASLCzIn_UN0k1DWiK99nVKfqTnqYUbX7fYqJ8n06s8poz0R8lpKjXlLf113ybc0Vgq3eQB67aWfR7oyvcj0u8l5am9JM-iHxu-Ou0zsvnyeb266C6vvn5bfbrsggIzddFGGaOIZoiiV0EZbq0UInLoudA9RqEHZDoYpRACN1xagEH3fTQwGBHEGXl_7L2r5e8e2-R28_84jj5j2TdngX1UTHE9k2__I2_Lvub5OWe0MJLNSmaIH6FQS2sVo7uraefrvWPgDq7dg2t3cO1OrufQu1Ozb8GPsfocUntMcik4V-LAvTlyCREfz0orAG3EPzqMhwQ</recordid><startdate>20110701</startdate><enddate>20110701</enddate><creator>WU, Ruay-Nan</creator><creator>CHANG, Chien-Kuo</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope><scope>F28</scope></search><sort><creationdate>20110701</creationdate><title>The Use of Partial Discharges as an Online Monitoring System for Underground Cable Joints</title><author>WU, Ruay-Nan ; CHANG, Chien-Kuo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c508t-f9f4ff3f8df3b5c58299433f20b237bef37de17c855e0c2824900d7bbf80d83c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Accelerated aging tests</topic><topic>Applied sciences</topic><topic>Cable insulation</topic><topic>Cable joint</topic><topic>Cables</topic><topic>Digital broadcasting</topic><topic>digital signal processor (DSP)</topic><topic>Digital signal processors</topic><topic>Discharges</topic><topic>Electric connection. Cables. Wiring</topic><topic>Electrical engineering. Electrical power engineering</topic><topic>Electrical power engineering</topic><topic>Exact sciences and technology</topic><topic>Insulation</topic><topic>insulation diagnosis</topic><topic>Joints</topic><topic>Monitoring</topic><topic>Monitoring systems</topic><topic>On-line systems</topic><topic>Online</topic><topic>online monitoring</topic><topic>Partial discharges</topic><topic>partial discharges (PDs)</topic><topic>Power cables</topic><topic>Power networks and lines</topic><topic>Signal processing</topic><topic>Testing. Reliability. Quality control</topic><topic>Underground and submarine networks</topic><topic>Underground cables</topic><topic>Various equipment and components</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>WU, Ruay-Nan</creatorcontrib><creatorcontrib>CHANG, Chien-Kuo</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><jtitle>IEEE transactions on power delivery</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WU, Ruay-Nan</au><au>CHANG, Chien-Kuo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Use of Partial Discharges as an Online Monitoring System for Underground Cable Joints</atitle><jtitle>IEEE transactions on power delivery</jtitle><stitle>TPWRD</stitle><date>2011-07-01</date><risdate>2011</risdate><volume>26</volume><issue>3</issue><spage>1585</spage><epage>1591</epage><pages>1585-1591</pages><issn>0885-8977</issn><eissn>1937-4208</eissn><coden>ITPDE5</coden><abstract>With their vast amount of joints, underground cable systems are expensive to maintain; therefore, measurement equipment must be cost-effective. This study proposes the long-term placement of partial-discharge (PD) monitoring units at cable joints. The unit consists of a peak detect circuit and a digital signal processor for acquiring and converting the sensors' PD signals into discharge sequence data, whose data are then provided to a remote computer for analysis and display of the condition of the cable joint. Finally, a cable joint with artificial defects was tested by accelerated aging tests to verify the performance of the equipment. Two characteristics, namely, the average discharge quantity (Q ave ) and the discharge phase region, are proposed and plotted against each other to render an evolution locus, which reveals a shape of an upside-down letter N. The locus allows a judgment to be made on the state of the insulation in the cable joint. 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| source | IEEE Electronic Library (IEL) |
| subjects | Accelerated aging tests Applied sciences Cable insulation Cable joint Cables Digital broadcasting digital signal processor (DSP) Digital signal processors Discharges Electric connection. Cables. Wiring Electrical engineering. Electrical power engineering Electrical power engineering Exact sciences and technology Insulation insulation diagnosis Joints Monitoring Monitoring systems On-line systems Online online monitoring Partial discharges partial discharges (PDs) Power cables Power networks and lines Signal processing Testing. Reliability. Quality control Underground and submarine networks Underground cables Various equipment and components |
| title | The Use of Partial Discharges as an Online Monitoring System for Underground Cable Joints |
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