The invention relates to the technical field of power grid management, and provides a court user-transformer relation distinguishing system and method, and a court high-loss monitoring system and method. The court user-transformer relation distinguishing system comprises a court management unit, a carrier main node, an I-type collector and an II-type concentrator; the I-type collector receives a communication signal, performs caching, schedules priorities, calculates a timeout, and meanwhile, sends an electric energy meter search signal sent by the carrier main node and a meter reading signalof the II-type concentrator to a plurality of electric energy meters; the carrier main node sends the electric energy meter search signal generated by the court management unit to the I-type collector, and meanwhile, sends meter search result information and meter reading data parameters fed back by the I-type collector to the court management unit; and the court management unit performs sorted storage on meter reading data, and meanwhile, distinguishes user-transformer relations, so that accurate positioning of the user-transformer relations is achieved, and a foundation is laid for analysisand positioning of electricity stealing behaviors of a rear high-loss court.

Court user-transformer relation distinguishing system and method, and court high-loss monitoring method

The present invention provides a monitoring method and a system of an electric energy measuring device and terminal equipment. The method comprises the following steps: calculating the theoretical operation comprehensive error of a measuring point; acquiring the test point electric quantity, the bus input electric quantity, the bus output electric quantity, the stable bus unbalanced electric quantity, the measuring point electric quantity and the stable line loss electric quantity; calculating and obtaining the abnormal line loss electric quantity according to the measuring point electric quantity, the stable line loss electric quantity, the test point electric quantity and the theoretical operation comprehensive error of the measuring point; calculating and obtaining the abnormal bus electric quantity according to the bus input electric quantity, the bus output electric quantity and stable bus unbalanced electric quantity; and judging the fact that whether the electric energy measuring device failures based on the abnormal line loss electric quantity and the abnormal bus electric quantity. According to the method, the measuring point is monitored and the data change is analyzed inreal time without additional monitoring equipment, the analysis of the error change of the electric energy measuring device is realized, and thus the fault(s) can be found and eliminated in time.

Monitoring method and system of electric energy measurement device and terminal equipment

The invention discloses a courts line loss alteration analysis module and an operation method thereof, and relates to the technical field of the power grid power utilization inspection. The module comprises a line loss analysis unit, an alteration analysis unit and an ammeter management unit; the line loss analysis unit is used for analyzing single-court line and equipment operating condition in apower supply range of a power supply station, and warning an abnormal operation condition; the alteration analysis unit is used for analyzing and displaying the line loss rate condition and the household ammeter electric quantity fluctuation condition of each court in the power supply range of the power supply station, and publishing a metering special power utilization inspection work order forthe household meter electric quantity fluctuation condition which is judged as abnormity; the ammeter management unit is used for acquiring and managing the household ammeter information in each courtin the power supply range of the power supply station, and providing data foundation for the line loss analysis unit court line and the equipment operating condition. By acquiring the related data and importing into a module, a related conclusion can be obtained through automatic analysis, thereby winning sufficient time for the field abnormal meter inspection and court line rectification, and quickly and accurately providing reliable evidence for the field work.

Courts line loss alteration analysis module and operation method thereof

The invention relates to a method for judging line loss abnormity based on acquisition electricity quantity abnormal fluctuations and belongs to the technical field of electric power. The method is used for carrying out all-around analysis on acquisition electricity quantity. Effects on line losses are explored from five aspects of acquisition electricity quantity sudden change, low load, capacitychange electricity quantity fluctuations, positive correlation fluctuations between the acquisition electricity quantity and the line loss rate and negative correlation fluctuations between the acquisition electricity quantity and the line loss rate. By taking multiple limitations like the acquisition electricity quantity values and fluctuation values, full load electricity quantity values, acquisition electricity quantity upper limits, the line loss rate sections and fluctuation values of the belonged courts or circuits and the like as judgment basis, through fluctuation graphical displayingof the acquisition electricity quantity and the line loss rate and negative correlation fluctuations, acquisition electricity quantity abnormal fluctuations caused by error wiring of an electric energy meter or electricity stealing by humans can be precisely screened, whether the line loss abnormity is caused by the electricity quantity abnormal fluctuations is judged, powerful data support is provided for examination workers in the place and working efficiency of line loss management is improved.

Method for judging line loss abnormity based on acquisition electricity quantity abnormal fluctuations

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Method for judging line loss abnormity based on acquisition electricity quantity abnormal fluctuations