A new method for real-time monitoring of high-voltage transmission-line conductor sag
The amount of power flowing through a high-voltage transmission line is proportional to its voltage and the current flowing through it. To increase power flow without modifying the line to support increased voltage, the current must be increased. There is a limit to this, however, since increasing t...
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| Veröffentlicht in: | IEEE transactions on power delivery 2002-10, Vol.17 (4), p.1142-1152 |
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| container_title | IEEE transactions on power delivery |
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| creator | Olsen, R.G. Edwards, K.S. |
| description | The amount of power flowing through a high-voltage transmission line is proportional to its voltage and the current flowing through it. To increase power flow without modifying the line to support increased voltage, the current must be increased. There is a limit to this, however, since increasing the current causes the conductor temperature to increase and, hence, the conductors to elongate and sag. In this paper, a method to simply and inexpensively measure the amount of conductor sag and, through simple calculation, the average conductor core temperature is described, and the results of a field test are summarized. The method involves attaching two ends of a grounded wire of high electrical resistance to an appropriate location on each of two transmission-line towers and measuring the current induced on the wire by the nearby transmission-line conductors. Information from this measurement is a critical input to any method for dynamically rating transmission lines. |
| doi_str_mv | 10.1109/TPWRD.2002.804015 |
| format | Article |
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To increase power flow without modifying the line to support increased voltage, the current must be increased. There is a limit to this, however, since increasing the current causes the conductor temperature to increase and, hence, the conductors to elongate and sag. In this paper, a method to simply and inexpensively measure the amount of conductor sag and, through simple calculation, the average conductor core temperature is described, and the results of a field test are summarized. The method involves attaching two ends of a grounded wire of high electrical resistance to an appropriate location on each of two transmission-line towers and measuring the current induced on the wire by the nearby transmission-line conductors. Information from this measurement is a critical input to any method for dynamically rating transmission lines.</description><identifier>ISSN: 0885-8977</identifier><identifier>EISSN: 1937-4208</identifier><identifier>DOI: 10.1109/TPWRD.2002.804015</identifier><identifier>CODEN: ITPDE5</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Conductors ; Conductors (devices) ; Electric potential ; Electric power generation ; Electric power lines ; Electric wire ; Electrical resistance measurement ; Load flow ; Monitoring ; Position (location) ; Power transmission lines ; Sag ; Temperature ; Transmission line measurements ; Transmission lines ; Voltage ; Wire</subject><ispartof>IEEE transactions on power delivery, 2002-10, Vol.17 (4), p.1142-1152</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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To increase power flow without modifying the line to support increased voltage, the current must be increased. There is a limit to this, however, since increasing the current causes the conductor temperature to increase and, hence, the conductors to elongate and sag. In this paper, a method to simply and inexpensively measure the amount of conductor sag and, through simple calculation, the average conductor core temperature is described, and the results of a field test are summarized. The method involves attaching two ends of a grounded wire of high electrical resistance to an appropriate location on each of two transmission-line towers and measuring the current induced on the wire by the nearby transmission-line conductors. Information from this measurement is a critical input to any method for dynamically rating transmission lines.</description><subject>Conductors</subject><subject>Conductors (devices)</subject><subject>Electric potential</subject><subject>Electric power generation</subject><subject>Electric power lines</subject><subject>Electric wire</subject><subject>Electrical resistance measurement</subject><subject>Load flow</subject><subject>Monitoring</subject><subject>Position (location)</subject><subject>Power transmission lines</subject><subject>Sag</subject><subject>Temperature</subject><subject>Transmission line measurements</subject><subject>Transmission lines</subject><subject>Voltage</subject><subject>Wire</subject><issn>0885-8977</issn><issn>1937-4208</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kT1v2zAQhomgBeK6-QFBF6JDOsk9fkgiR8NpkwIBEgQ2MhKUfLJpSKRLygn670vHHYoMWe6W5z3c3UPIJYMZY6C_Lx-eHq9nHIDPFEhg5RmZMC3qQnJQH8gElCoLpev6nHxKaQeQIQ0TsppTjy90wHEb1rQLkUa0fTG6AekQvBtDdH5DQ0e3brMtnkM_2g3SMVqfBpeSC77onUfaBr8-tBmnyW4-k4-d7RNe_OtTsvr5Y7m4Le7ub34t5ndFK0oxFpbVVdsAcql1pxgvUXFR5cJL3jImFRPIuOVr2TRMl6wDVXVYQ9MKoaVsxJR8O83dx_D7gGk0eacW-956DIdkNNRaA9SQyat3Sa5K0JVSGfz6BtyFQ_T5CqOUlELV-a1Twk5QG0NKETuzj26w8Y9hYI4-zKsPc_RhTj5y5ssp4xDxP15WSlfiLwp8haA</recordid><startdate>20021001</startdate><enddate>20021001</enddate><creator>Olsen, R.G.</creator><creator>Edwards, K.S.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>RIA</scope><scope>RIE</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>20021001</creationdate><title>A new method for real-time monitoring of high-voltage transmission-line conductor sag</title><author>Olsen, R.G. ; Edwards, K.S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c353t-a176cb0e2499f8125e8236e82252c114813e12a2d4bb1951f086fe70bc33944b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Conductors</topic><topic>Conductors (devices)</topic><topic>Electric potential</topic><topic>Electric power generation</topic><topic>Electric power lines</topic><topic>Electric wire</topic><topic>Electrical resistance measurement</topic><topic>Load flow</topic><topic>Monitoring</topic><topic>Position (location)</topic><topic>Power transmission lines</topic><topic>Sag</topic><topic>Temperature</topic><topic>Transmission line measurements</topic><topic>Transmission lines</topic><topic>Voltage</topic><topic>Wire</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Olsen, R.G.</creatorcontrib><creatorcontrib>Edwards, K.S.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</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>Olsen, R.G.</au><au>Edwards, K.S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A new method for real-time monitoring of high-voltage transmission-line conductor sag</atitle><jtitle>IEEE transactions on power delivery</jtitle><stitle>TPWRD</stitle><date>2002-10-01</date><risdate>2002</risdate><volume>17</volume><issue>4</issue><spage>1142</spage><epage>1152</epage><pages>1142-1152</pages><issn>0885-8977</issn><eissn>1937-4208</eissn><coden>ITPDE5</coden><abstract>The amount of power flowing through a high-voltage transmission line is proportional to its voltage and the current flowing through it. To increase power flow without modifying the line to support increased voltage, the current must be increased. There is a limit to this, however, since increasing the current causes the conductor temperature to increase and, hence, the conductors to elongate and sag. In this paper, a method to simply and inexpensively measure the amount of conductor sag and, through simple calculation, the average conductor core temperature is described, and the results of a field test are summarized. The method involves attaching two ends of a grounded wire of high electrical resistance to an appropriate location on each of two transmission-line towers and measuring the current induced on the wire by the nearby transmission-line conductors. Information from this measurement is a critical input to any method for dynamically rating transmission lines.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TPWRD.2002.804015</doi><tpages>11</tpages></addata></record> |
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| ispartof | IEEE transactions on power delivery, 2002-10, Vol.17 (4), p.1142-1152 |
| issn | 0885-8977 1937-4208 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Conductors Conductors (devices) Electric potential Electric power generation Electric power lines Electric wire Electrical resistance measurement Load flow Monitoring Position (location) Power transmission lines Sag Temperature Transmission line measurements Transmission lines Voltage Wire |
| title | A new method for real-time monitoring of high-voltage transmission-line conductor sag |
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