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This article according to internal and external actual situation from the typical 220 kV substation connection, ATP-EMTP simulation program is applied to simulate and analyze under all effect is to be considered, the rules of over-voltage from transformer and the position of arrester is founded, and found that if the incoming line of overhead line to open-substation have CVT, the maximum protective...
In recent years, detecting buried depth of optical fiber submarine cables is a difficult problem for the building and the maintenance of optical fiber submarine cable communication system. Based on magnetism detection method, this paper establishes the basic model of buried depth detection and designs the biorthogonal-coil depth detection method. The characteristic of the biorthogonal-coil depth detection...
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