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FAULT POINT STANDARDIZATION SYSTEM FOR TRANSMISSION LINE
FAULT POINT STANDARDIZATION SYSTEM FOR TRANSMISSION LINE
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机译：输电线路故障点标准化系统
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摘要
PURPOSE:To use an overhead earth wire and to obtain a standardization system to be applied also to a transmission line having many branches by transmitting earth current data found out by an earth current detecting CT to a fault point standardization device to standardize an accident position of the transmission line. CONSTITUTION:The earth current detecting CTs 9 are fitted to plural prescribed steel towers in a transmission line system to detect the earth current and find out data relating to the earth current. The data of an earth current value or its phase are formed by a signal transmission unit 11 on the basis of the obtained data and sent to the fault point standardization device 12 through an optical fiber 10. Since the earth current near an accident point is high and the accidential current is branched from the accidential steel tower to right and left earth sides, the phase of the current is inverted at the accidential steel tower. Thereby, the device 12 collects the information of these currents and phases and compares data between respective steel towers to standardize the fault point.
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