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《Electric Power》 2007-01
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Research on improving the transmitting capacity of transmission line based on dynamic monitoring

LING Ping1,JIN Heng1,QIAN Zhi-yin2(1.East China Power Test and Research Institute,Shanghai 200437,China;2.East China Power Grid Company Limited,Shanghai 200002,China)  
For improving the transmitting capacity of transmission line,the method of applying dynamic monitoring technology was presented after theoretical analysis,test and research in lab,and feasibility study based on field conditions.The method can help to improve the transmitting capacity,its main content includes: monitoring equipments which can monitor the conductor temperature,surrounding temperature,sunshine intensity settled on transmission lines' bottleneck points which have influence on transmitting capacity;the real-time current of transmission lines and their sections monitored by the real-time data system of operation center;the mathematic model which can transfer monitoring data into operation data and can be used by the operator for safe improving capacity operation.The transmission lines real-time transmitting rating management system has applied on several 500 kV and 220 kV transmission lines,the key part of the dynamic improving transmitting capacity technology is validated.
【CateGory Index】: TM764;TM726
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