Low voltage user electric energy meter wiring checking method and system
A technology for electric energy meters and users, which is applied in the field of electric power, can solve problems such as inaccurate correspondence between users and electric energy meters, incorrect connection of electric energy meters to wrong users, and unfair use of users, so as to eliminate unfair electricity consumption and reduce work difficulty , the effect of avoiding huge damage
Active Publication Date: 2015-01-28
STATE GRID CORP OF CHINA +1
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[0002] The energy meter is an instrument used to record the electricity consumption of electricity users. Generally, it is used for low-voltage users. The outlet end of the energy meter is connected to the user, and one meter per household is implemented, but it is often prone to wrong connection of the outlet of the energy meter. Due to the situation of the user, the user and the electric energy meter cannot be accurately corresponded, which in turn causes staggered payment when the fee is paid, thus causing unfair use among users (that is, those who use more electricity pay less, and those who use less electricity pay more. Therefore, it is necessary to propose a method for auditing the wiring of the electric energy meter of the low-voltage user, which can accurately judge the wiring of the electric energy meter of the low-voltage user, and eliminate the phenomenon of unfair use of electricity between users
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[0031] figure 1 It is a flow chart of the auditing method of the present invention, figure 2 It is a functional block diagram of the audit system of the present invention, image 3 It is the circuit schematic diagram of the coupling circuit of the present invention, Figure 4 It is the equivalent schematic diagram of the electric energy meter in the power supply line of the present invention, as shown in the figure, a low-voltage user electric energy meter wiring audit method provided by the present invention includes the following steps:
[0032] Step S1. Load a test signal on the power line at the user end, wherein the test signal is generated by an existing radio frequency signal source, and an identification signal, such as an identification code, can be added to the test signal, and the identification code is generated and sent by the encoding circuit In the signal source, when the encoding circuit generates the identification code, it can be a random code or a specifi...
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The invention provides a low voltage user electric energy meter wiring checking method and system. The method comprises the following steps that 1, testing signals are loaded on a power line at the user end; 2, the testing signals are detected at the leading-out terminal of an electric energy meter corresponding to the user end; 3, the wiring result of the electric energy meter is judged according to the testing signals at the leading-out terminal of the target electric energy meter. The wiring condition of the electric energy meter at the user end can be detected accurately, whether the wiring result is correct or not can be judged accurately, and therefore the unfair power consumption of users is eliminated, operation is carried out under the state without power outage, inconvenience and losses of users from power outage checking are avoided effectively, and working difficulty is reduced.
Description
technical field [0001] The invention relates to the field of electric power, in particular to a method and system for checking the connection of electric energy meters of low-voltage users. Background technique [0002] The energy meter is an instrument used to record the electricity consumption of electricity users. Generally, it is used for low-voltage users. The outlet end of the energy meter is connected to the user, and one meter per household is implemented, but it is often prone to wrong connection of the outlet of the energy meter. Due to the situation of the user, the user and the electric energy meter cannot be accurately corresponded, which in turn causes staggered payment when the fee is paid, thus causing unfair use among users (that is, those who use more electricity pay less, and those who use less electricity pay more. Therefore, it is necessary to propose a method for auditing the wiring of the electric energy meter of the low-voltage user, which can accurat...
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IPC IPC(8): G01R31/02G01R35/04
Inventor 张宇向椿黄海波李洪兵李明浩薛伟顾博黄宇翔蒋贞贤刘科左莹王永华陈柯周鼎冉亮胡轶强胡君屠宁雷一张洪麟
Owner STATE GRID CORP OF CHINA