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Remote transmission fault indicator for overhead external application

At present, small current grounding systems are mostly used in distribution networks. When single-phase grounding faults occur in such systems, due to the small fault current and complex fault characteristics, the line selection and location of single-phase grounding in small current grounding systems have always been a technical difficulty for the operation of distribution networks. Accurate selection of grounding line and finding of grounding section can avoid unnecessary switching operation and maintain continuous power supply.

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Fault Indicator

Description


Remote transmission fault indicator for overhead external application
At present, small current grounding systems are mostly used in distribution networks. When single-phase grounding faults occur in such systems, due to the small fault current and complex fault characteristics, the line selection and location of single-phase grounding in small current grounding systems have always been a technical difficulty for the operation of distribution networks. Accurate selection of grounding line and finding of grounding section can avoid unnecessary switching operation and maintain continuous power supply. The principle of signal source detection method (asymmetric current) to detect single ground fault is to realize fault line selection and fault location by detecting the characteristics of asymmetric current signals generated on the fault line according to the characteristics of single-phase ground fault in small current grounding system.

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