Sliding rail type electric energy meter power frequency magnetic field test device and method
A technology of power frequency magnetic field and test device, which is applied in the direction of analyzing materials and instruments, can solve problems such as low efficiency, time-consuming, and failure to meet production needs, and achieve the effect of improving efficiency and saving test working time
Active Publication Date: 2019-09-13
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +2
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Problems solved by technology
This method is inefficient, has a low degree of automation, and cannot meet production needs
Especially in order to study the relationship between the measurement error of the electric energy meter and the magnetic field, a large amount of test data is required, and it takes a lot of time to adopt the traditional magnetic field test device and method
[0004] To sum up, there is currently no device and method that can simultaneously carry out magnetic field influence tests on multiple electric energy meters. It is necessary to invent and design a more efficient test device and methods to improve the efficiency of the electric energy meter magnetic field test and save the test working time
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[0042] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0043] Such as figure 1 As shown, the present invention provides a kind of slide rail electric energy meter industrial frequency magnetic field test device, comprises base 1, magnetic field coil 2, magnetic field coil support 3, electric energy meter test bench 4, electric energy meter test bench support 5, magnetic field coil support position control Transmission unit 6 , magnetic field strength control unit 7 , integrated control unit 8 and connecting cables 9 .
[0044] The base 1 is composed of four metal sides that form a rectangle, and are used to carry the magnetic field coil support 3 and the electric energy meter test bench support 5, two of which 10 are slide rail structures, and the ...
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Abstract
The invention discloses a sliding rail type electric energy meter power frequency magnetic field test device and method. The device disclosed by the invention comprises a base, a magnetic field coil,magnetic field coil brackets, an electric energy meter test stand, electric energy meter test stand brackets, a magnetic field coil bracket position control transmission unit, a magnetic field intensity control unit and a comprehensive control unit; two borders on the base are of a sliding rail structure and are used for bearing the magnetic field coil brackets; the other two borders on the base are used for bearing electric energy meter test stand brackets; the magnetic field coil bracket position control transmission unit is used for changing positions of the magnetic field coil brackets onsliding rails so as to change relative positions of the electric energy meter test stand and the magnetic field coil; and the magnetic field intensity control unit is used for outputting a current tothe magnetic field coil and controlling intensity of a magnetic field generated by the magnetic field coil. According to the invention, simultaneous development of a magnetic field influence test on aplurality of electric energy meters is implemented, test efficiency is improved, and test working time is saved.
Description
technical field [0001] The invention relates to a test device and method for a power frequency magnetic field of a slide rail type electric energy meter, belonging to the technical field of measurement and instruments. Background technique [0002] When the energy meter is installed and operated on site, it will be affected by different degrees of magnetic field, mainly the power frequency magnetic field. When the magnetic field passes through the signal sampling circuit of the electric energy meter, a significant induced potential may be generated, thereby affecting the voltage and current measurement accuracy of the electric energy meter, and ultimately resulting in inaccurate electric energy measurement. my country's national standards have strict regulations on the electric energy meter's resistance to power frequency magnetic field interference. Therefore, in the electric energy meter type test, full performance test and other tests, there are test items for power frequ...
Claims
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IPC IPC(8): G01N35/04
CPCG01N35/04
Inventor 程含渺徐晴蔡奇新纪峰高雨翔方凯杰黄艺璇田正其宋瑞鹏
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST