State Grid North power supply R & D verification instrument to crack the power meter backline string problems

[China Instrument Network Instrument R&D] Recently, the State Grid Chongqing Beibei Power Supply Co., Ltd. has used its current low-voltage carrier communication technology to carry out scientific and technological innovations and developed a power meter back-line verification instrument that does not require electricity. The instrument has achieved significant results after its initial investment. At the same time, the company has applied for patents on this instrument and published related papers in core journals.

It is understood that power supply companies currently determine whether there is a situation where the meter is connected to the back of the line, mainly by jumping off the load switch or increasing the load. The method is simple to operate, but it needs to cut off the power supply in the customer's home. The on-site workload is large, and the customer must be at home to carry out the inspection work, which may affect the normal power consumption of the customer.

Beibei Power Supply Company relied on the advantages of science and technology projects, summed up the work experience and lessons learned from list-line inspections at the back of the table, and used the low-voltage carrier communication technology at the current stage to carry out scientific and technological innovations, and developed a back-to-back line verification instrument that does not require electricity. The verification instrument uses the mobile auditor and the household checker as the core of the system, and cooperates with the customer information locator to form the household electricity meter serial inspection system. The customer information locator scans the electric meter asset code and transmits the electric energy meter information to the mobile auditor. Instrument, combined with the actual situation of the customer site to determine the corresponding results of customer information and on-site information in the marketing application system; and then through the combination of diagnostic analyzer and smart handheld analysis platform, constitutes a household electricity meter string inspection system, watch household detector and diagnostic analyzer Measure the relevant electrical parameters at the two ends of the residents' load and the electricity meter, analyze and judge the on-site correspondences of the centralized energy metering boxes, and display the results of the series of households through the smart phone display report. The investigation method measures the relevant electrical parameters under the premise of no-load-jumping and no-load-increasing, analyzing and judging the correspondence relationship between the centralized power metering units and the series-connected results, simplifying the process and avoiding disputes.

Beibei Power Supply Co., Ltd. has vigorously promoted the instrument and applied for the patent in November and published related papers in core journals. Since November, Beibei Power Supply Company has used the verification equipment to complete the investigation of 35,000 household energy meter meters in the bright Tianrun City and the coastal city of Xielo Town. It has found that there are 598 strings, reducing more than 500 customer complaints and customer inquiries. The benchmarking indicators for the measurement industry have been upgraded from the “D” section in May to the “A” section in November, which greatly improved the quality of service.

(Original Title: Beibei Power Supply: R & D Verifier Cracked Table Backline String Challenge)