Intelligent testing device of built-in load switch of electric energy meter

Abstract

The invention discloses an intelligent testing device of a built-in load switch of an electric energy meter. The intelligent testing device of the built-in load switch of the electric energy meter aims to overcome the defects of existing technical equipment for detecting the electric energy meter. The intelligent testing device of the built-in load switch of the electric energy meter is composed of a computer, a control unit, a meter position display unit, a measurement channel switching unit, a load gear switching unit, a relay parameter measuring unit, a waveform monitoring unit, a withstanding voltage testing unit, a load unit and a load parameter measuring unit. The intelligent testing device of the built-in load switch of the electric energy meter has the advantages that testing of the load switch of the electric energy meter can be achieved, the service life of the built-in load switch of the electric energy meter can be predicted accurately and reasonably due to the fact that testing is carried out under the actual load condition, the testing efficiency is improved by 40% compared with that achieved manually, requirements of the State Grid Corporation of China are met, and potential safety hazards are reduced.

Description

technical field [0001] The invention relates to the technical field of instrument detection, in particular to an intelligent test device with a built-in load switch for an electric energy meter. Background technique [0002] The on-off function of the load switch of the electric energy meter is a necessary inspection item for the electric energy meter by the metering department. According to the requirements of the State Grid Corporation of China, the load switch of the electric energy meter can be built-in or external; when the load switch with a built-in electric energy meter is used, the maximum current of the electric energy meter should not exceed 60A, and the on-off life of the contact under load should not be less than 6000 times. According to the above regulations, the existing detection method for the load switch of the electric energy meter is: apply a reference voltage to the voltage circuit of the electric energy meter, and the current circuit passes 1.2 times t...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problem that the existing detection method cannot effectively detect the actual performance of the load switch built in the electric energy meter, the present invention provides an intelligent test device for the load switch built in the electric energy meter, and its specific structure is:

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