Method, device and equipment for detecting abnormal operation of three-phase three-wire intelligent electric energy meter
A smart electric energy meter, three-phase three-wire technology, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problem of personal electric shock injury problem, to achieve the effect of high judgment efficiency, high accuracy and short time consumption
Pending Publication Date: 2022-08-09
国网重庆市电力公司营销服务中心 +1
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Problems solved by technology
[0002] The existing method for judging the abnormality of the three-phase three-wire smart energy meter requires the staff to operate on-site wiring in the live metering circuit. There are very large personal electric shock injuries, open circuit of the secondary circuit of the current transformer, short circuit of the voltage circuit, and damage to the metering equipment. , Circuit breaker tripping causes safety risks such as large-scale power outage accidents in the power grid. In addition, the existing methods require staff to draw phasor diagrams, determine the load power factor angle, and use hexagonal diagrams and other methods for analysis, which takes a long time and is inefficient in judgment. Not very accurate
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[0070] Hereinafter, the present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.
[0071] In this embodiment, a method for detecting abnormal operation of a three-phase three-wire smart electric energy meter is provided, which is used for a three-phase three-wire electric energy meter, such as figure 1 As shown, the method includes:
[0072] Step 101, obtaining the operation data of the three-phase three-wire electric energy meter, and determining the operation state of the three-phase three-wire electric energy meter according to the operation data;
[0073] The method for determining an abnormality of an electric energy meter provided by the embodiment of the present application is used to determine whether an abnormality or failure occurs...
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The invention discloses an operation anomaly detection method, device and equipment of a three-phase three-wire intelligent electric energy meter and a storage medium, and is used for a three-phase three-wire electric energy meter, and the method comprises the steps: obtaining the operation data of the three-phase three-wire electric energy meter, and determining the operation state of the three-phase three-wire electric energy meter according to the operation data; determining a first judgment result according to the running state and a total power factor in the running data; determining a second judgment result according to the operation state and the element power factor in the operation data; determining a third judgment result according to the proportional relation between the element power factor and the total power factor; and if at least one of the first determination result, the second determination result and the third determination result is not satisfied, determining that the three-phase three-wire electric energy meter is abnormal. According to the method, the safety risk in the judgment process is reduced, and meanwhile the judgment efficiency and accuracy are improved.
Description
technical field [0001] The present application relates to the technical field of power grid operation and maintenance, and in particular, to a method, device, device and storage medium for detecting abnormal operation of a three-phase three-wire smart electric energy meter. Background technique [0002] The existing method for judging the abnormality of the three-phase three-wire smart electric energy meter requires the staff to operate the wiring in the live metering circuit on the spot, and there are very large personal electric shock injuries, open circuit in the secondary circuit of the current transformer, short circuit in the voltage circuit, and damage to the metering equipment. In addition, the existing method requires staff to draw a phasor diagram, determine the load power factor angle, and use a hexagonal diagram for analysis, which takes a long time and is inefficient. Not very accurate. SUMMARY OF THE INVENTION [0003] In view of this, the present applicatio...
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IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 常仕亮成涛何珉吴高林陈文瑛邹波郑可吴嘀骆凯波冯凌杜杰张家铭周峰
Owner 国网重庆市电力公司营销服务中心