高压输电的环境保护

发布时间:2024-12-13 04:12

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                    :xxx     :xxx (xxxx          )    :                            ,                                。                     ,                         。                           ;                      ;                        。    :                     Environmental Protection of High-Voltage Transmission Author: Wang Zengfu supervisor: Wang Yunshan (Major in Electrical Engineering and Automation Grade 2007) Abstract:With the improvement of the high-voltage transmission level, corresponding environmental problems become more and more obvious. They are mainly reflected by the ecological affects brought by electric field and negative result to environment from electric corona. This paper analyzes electric field existing on the surface of wires and between wires to the ground, finds factors that influence electric intensity of these fields. Measures of splitting wires can be taken to improve the starting intensity of electric corona    www.taodocs.com                           :xxx     :xxx (xxxx          )    :                            ,                                。                     ,                         。                           ;                      ;                        。    :                     Environmental Protection of High-Voltage Transmission Author: Wang Zengfu supervisor: Wang Yunshan (Major in Electrical Engineering and Automation Grade 2007) Abstract:With the improvement of the high-voltage transmission level, corresponding environmental problems become more and more obvious. They are mainly reflected by the ecological affects brought by electric field and negative result to environment from electric corona. This paper analyzes electric field existing on the surface of wires and between wires to the ground, finds factors that influence electric intensity of these fields. Measures of splitting wires can be taken to improve the starting intensity of electric corona    www.taodocs.com       

discharge, and the electric intensity of the field between wires to the ground can be controlled by applying of technology of maximum value of the vertical arc. Preventing measures for environmental problems resulted by electric corona discharge are still introduced. Key words: high-voltage transmission electric intensity of power frequency maximum value of the vertical arc electric corona - 1 -         0                ,          ,                、       ,             。           ,             :             ,                     ,          ,          ①;    ,                ,            ,                  ,    :1            ;2           ;3                        [1]。 1                          ②                             ,                  。 1.1              1.1.1.            www.taodocs.com       discharge, and the electric intensity of the field between wires to the ground can be controlled by applying of technology of maximum value of the vertical arc. Preventing measures for environmental problems resulted by electric corona discharge are still introduced. Key words: high-voltage transmission electric intensity of power frequency maximum value of the vertical arc electric corona - 1 -         0                ,          ,                、       ,             。           ,             :             ,                     ,          ,          ①;    ,                ,            ,                  ,    :1            ;2           ;3                        [1]。 1                          ②                             ,                  。 1.1              1.1.1.            www.taodocs.com       

            D/r>100,                     ,                   Ei?Qi (1-1) 2peri   Q=CU  (1-1)                           。 1.1.2.                ③        ,        ,                ,    Q/n,                   Eav=1Q× (1-2) nr2pe   ,Eav-ei>0,        ,    ,            ,                 ,                   。 - 2 -         (1)      n  ,       。 (2)      r  ,        。 1.1.3.                          [2]  EC=30m1m2d(1+ (1-3) m1-           m2-         www.taodocs.com                    D/r>100,                     ,                   Ei?Qi (1-1) 2peri   Q=CU  (1-1)                           。 1.1.2.                ③        ,        ,                ,    Q/n,                   Eav=1Q× (1-2) nr2pe   ,Eav-ei>0,        ,    ,            ,                 ,                   。 - 2 -         (1)      n  ,       。 (2)      r  ,        。 1.1.3.                          [2]  EC=30m1m2d(1+ (1-3) m1-           m2-         www.taodocs.com       

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