Watt-hour meter inspection quality real-time monitoring device and method
A technology for real-time monitoring and inspection devices, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems affecting the quality of electric energy meters and the accuracy of electric energy meters cannot be guaranteed, and achieve the effect of improving stability and ensuring quality
Active Publication Date: 2014-03-26
STATE GRID ZHEJIANG ELECTRIC POWER +1
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Problems solved by technology
Generally, the standard electric energy meter is checked after a period of time. If the error of the standard electric energy meter becomes larger within this period of time, it will affect the quality of the electric energy meter inspected in this batch, and the accuracy of the electric energy meter cannot be guaranteed.
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[0013] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0014] like figure 1 , 2 As shown, the real-time monitoring device for the quality of electric energy meter inspection, the electric energy meter inspection device includes a voltage and current output device, a first standard electric energy meter connected to the voltage and current output device, a first standard electric energy meter connected to the first standard electric energy meter and the electric energy meter to be inspected An error calculator, a computer connected by communication with the first error calculator; a real-time monitoring device for checking the quality of the electric energy meter includes a second standard electric energy meter whose input end is connected to a voltage and current output device, and a device connected to the first and second standard electric energy meters. The second error calculator is...
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The invention relates to a watt-hour meter inspection device and method, in particular relating to a watt-hour meter inspection quality real-time monitoring device and method. The existing standard watt-hour meter usually conducts inspection within a certain period of time, and the quality of a batch of watt-hour meters is influenced if the error of the standard watt-hour meter increases within the period of time so as not to ensure the accuracy of the watt-hour meters. The invention is characterized in that the watt-hour meter inspection quality real-time monitoring device comprises a second standard watt-hour meter provided with an input terminal connected with a voltage and current output device, and a second error calculator connected with a first standard watt-hour meter and a second standard watt-hour meter and used for testing the comparison error of the first standard watt-hour meter and the second standard watt-hour meter, wherein the second error calculator is communicated with a computer for outputting the comparison result of output pulse of the first standard watt-hour meter and the second standard watt-hour meter to the computer. The watt-hour meter inspection device can ensure the normal function of the watt-hour meter inspection device, thereby ensuring the quality of the watt-hour meter and improving the stability.
Description
technical field [0001] The invention relates to an electric energy meter inspection device and method. Background technique [0002] In the existing electric energy meter inspection device, the comparison method is generally used to inspect the error of the electric energy meter. Since the energy meter verification regulations have higher and higher requirements for the error of the energy meter, the requirements for the accuracy and stability of the standard energy meter itself for the energy meter inspection device are also increased accordingly. Generally, the standard electric energy meter is checked after a certain period of time. If the error of the standard electric energy meter becomes larger within this period of time, it will affect the quality of the electric energy meter inspected in this batch, and the accuracy of the electric energy meter cannot be guaranteed. Contents of the invention [0003] The technical problem to be solved and the technical task propos...
Claims
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IPC IPC(8): G01R35/04
Inventor 姜雪明王炜朱炯张燕徐林松徐燕明
Owner STATE GRID ZHEJIANG ELECTRIC POWER