Metering error wiring identification method based on electrical parameters
A technology of incorrect wiring and identification methods, applied in the direction of measuring electrical variables, measuring devices, instruments, etc., can solve problems such as increased losses of enterprises, difficulties in replenishing electricity, and loss of electric power results, and achieve the strengthening of metering management and reduction of technical requirements for manual installation. The effect of preventing electricity theft
Pending Publication Date: 2022-07-29
GUIZHOU POWER GRID CO LTD
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Problems solved by technology
At present, the accuracy level of the electric energy meter in use is relatively high, and the influence of the electric energy measurement error is less, but the error caused by the wrong wiring to the electric energy measurement is often very large. During the installation and wiring of the three-phase electric energy meter, there may be In case of wrong wiring
Whenever there is a wiring error, it will inevitably lead to a very large power loss, and it will be extremely difficult to recover the power, and the loss of the enterprise will gradually increase, eventually resulting in the loss of power results
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[0031] Example: as Figure 1-2 As shown, the present invention is a method for identifying wrong wiring of metering based on electrical parameters, the method comprising:
[0032] S1: First, determine the phasor relationship diagram and wiring diagram;
[0033] S2: Secondly, sequentially detect the current, voltage and the phasor relationship between the two, including collecting the current and voltage information of the three-phase three-wire connected electric energy meter, and measuring the basic voltage data through the electric energy meter;
[0034] S3: Compare the actual measured phasor diagram with the correct phasor diagram to identify the wrong position.
[0035] Among them, the specific steps for determining the voltage measurement of the A-phase, B-phase and C-phase by the electric energy meter are as follows:
[0036] S1: Get the final display value;
[0037] S2: When each voltage value is close to 100V, it means that the polarity connection method on the volt...
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The invention discloses a metering wrong wiring identification method based on electrical parameters, and the method comprises the steps: S1, firstly, determining a phasor relation diagram and a wiring diagram; s2, detecting current, voltage and a phasor relationship between the current and the voltage in sequence, including collecting current and voltage information of a three-phase three-wire connected electric energy meter, and measuring voltage basic data through the electric energy meter; and S3, comparing the actually measured phasor diagram with the correct phasor diagram, and identifying a wrong position. According to the metering wrong wiring identification method based on the electrical parameters, metering management is enhanced, the electric energy statistical accuracy of a power supply enterprise and user rights and interests are ensured, and therefore the electricity peeping prevention technology and the metering accuracy are further improved.
Description
technical field [0001] The invention relates to the technical field of measurement error wiring, in particular to a measurement error wiring identification method based on electrical parameters. Background technique [0002] Three-phase smart electric energy meters are widely used in civil and industrial applications. As electric energy meters used for electric energy trade settlement, whether it can be measured correctly is related to the interests of both parties in electricity settlement. In addition to the accuracy level of the electric energy meter, the factors that affect the correct measurement of the electric energy meter are whether the wiring of the electric energy meter is correct. The electric energy meter currently in use has a high level of accuracy, which has less influence on the electric energy measurement error, but the error caused by the wrong wiring is often very large. During the installation and wiring of the three-phase electric energy meter, there ma...
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IPC IPC(8): G01R22/06
CPCG01R22/06
Inventor 杨婧陈庆辉欧新袁昊辛明勇代庆李涛汤鹤中宋强
Owner GUIZHOU POWER GRID CO LTD