Method of automatically monitoring resident three phase meter metering faults
An automatic monitoring, three-phase meter technology, applied in measuring devices, measuring electrical variables, instruments, etc., can solve problems such as inability to accurately troubleshoot faults
Inactive Publication Date: 2015-12-09
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0003] The purpose of the present invention is to provide a method for automatically monitoring metering faults of residents' three-phase meters, so as to solve the problem that the existing electric energy information collection system cannot accurately troubleshoot faults under abnormal line loss conditions in the station area
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[0016] This embodiment is a practical example for monitoring measurement faults of three-phase meters of residents in Zhuzhou City, Hunan Province.
[0017] When using the method of the present invention to automatically monitor the metering failure of the three-phase meter of the residents, the following steps are included:
[0018] 1) Increase voltage collection, current collection, and voltage loss cumulative time collection for three-phase meters;
[0019] 2) The concentrator regularly collects the voltage, current, and voltage loss cumulative time of the three-phase meter every day. According to the electricity consumption of Zhuzhou residents, the concentrator collection frequency is set to 7:00, 11:00, 15:00, and 19:00 every day ;
[0020] 3) The data collected each time is saved as real-time data;
[0021] 4) Do not keep the curve, only keep the data of one point, and the subsequent ones will cover the previous ones. If the subsequent collection is unsuccessful, the ...
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The invention discloses a method of automatically monitoring resident three phase meter metering faults, comprising the steps of: additionally collecting voltage, current, and voltage loss accumulation time of a three phase meter; collecting the voltage, current, and voltage loss accumulation time of the three phase meter at fixed time and for fixed times; storing collected data of each time in a real time data mode; only reserving a piece of point data, and covering the front point data by subsequent point data, wherein if subsequent collection fails, a last time of collection shall prevail, and supplementary sampling is not carried out if each time of collection fails; clearing the collected data at fixed time each day; after collection each day, a main station copying and reading the voltage, current, and voltage loss accumulation time information reserved by a concentrator, and directly discovering abnormal meters according to an analysis method for a specific power transformer meter. The method requires no additional devices, does not influence daily freezing copying and reading and remote power stopping, and can directly discover abnormal resident three phase meters when transformer zone line loss is abnormal, thereby automatically monitoring and analyzing three phase meter metering faults.
Description
technical field [0001] The invention relates to a method for automatically monitoring measurement faults of a resident's three-phase meter. Background technique [0002] Although the electric energy information collection system has achieved full coverage and full collection of household meters, the concentrator that uses a full-carrier network for local communication, due to the limitation of carrier communication, the collection of household meter information is limited to daily frozen meters. According to the daily frozen meter code, the acquisition master station can only complete the calculation and analysis of the settlement and the line loss of the station area. Many, when the line loss in the station area is abnormal, it is difficult to accurately locate which meter has a metering fault, especially for some three-phase users who consume a large amount of electricity and are prone to electricity theft, such as restaurants, teahouses, and entertainment venues. When th...
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IPC IPC(8): G01R35/04
Inventor 王绍槐陈红郭丹翁薇尹柳青刘鹏侯新平赵雷
Owner STATE GRID CORP OF CHINA