南方电网技术
南方電網技術
남방전망기술
SOUTHERN POWER SYSTEM TECHNOLOGY
2014年
2期
92-95
,共4页
周文斌%王新颖%白俊峰%鞠彦忠
週文斌%王新穎%白俊峰%鞠彥忠
주문빈%왕신영%백준봉%국언충
导线%载流量%试验
導線%載流量%試驗
도선%재류량%시험
conductors%current carrying capacity%experiment
通过用不同的测温计测量老旧导线和新导线的温度,在室内模拟架空输电线路的运行状态,对比分析了阳江35 kV老旧导线与未服役的新导线的载流温升性能。由理论分析,发现老旧导线的辐射散热功率高于未服役新导线,未服役新线的辐射散热功率比老旧导线少46%左右;由试验结果分析得出: LGJ70/10导线在相同的电流值下,未服役新导线的温升比老旧导线的温升低11%左右。
通過用不同的測溫計測量老舊導線和新導線的溫度,在室內模擬架空輸電線路的運行狀態,對比分析瞭暘江35 kV老舊導線與未服役的新導線的載流溫升性能。由理論分析,髮現老舊導線的輻射散熱功率高于未服役新導線,未服役新線的輻射散熱功率比老舊導線少46%左右;由試驗結果分析得齣: LGJ70/10導線在相同的電流值下,未服役新導線的溫升比老舊導線的溫升低11%左右。
통과용불동적측온계측량로구도선화신도선적온도,재실내모의가공수전선로적운행상태,대비분석료양강35 kV로구도선여미복역적신도선적재류온승성능。유이론분석,발현로구도선적복사산열공솔고우미복역신도선,미복역신선적복사산열공솔비로구도선소46%좌우;유시험결과분석득출: LGJ70/10도선재상동적전류치하,미복역신도선적온승비로구도선적온승저11%좌우。
By using different thermometers to measure the old and the new conductors' temperature, by simulating the overhead transmission lines' running indoor, and comparative analysis of the performance of the carrier temperature of Yangjiang 35 kV old conductors and new ones.By the theoretical analysis, we found the old wires' radiated heat power higher than the new conduc-tors.The heat radiated power of the new conductors are less than about 46% of the old ones;Analysis of test results obtained by the wire at the same current value, the new LGJ70/10 conductors service temperature is lower than the old ones about 11% .