A measurement stability test system and test method for electric energy meters
A technology of stability testing and testing methods, applied in the measurement of electrical variables, measuring devices, instruments, etc., can solve the problem that the measurement stability of the electric energy meter under test cannot be tested, the test method cannot simulate various conditions, and the measurement error of the electric energy meter Changes and other issues to achieve good test results, improve test efficiency, and high measurement accuracy.
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0032] Such as figure 1 , a measurement stability test device, including a power supply unit, a measurement acquisition unit, a measurement verification unit and a load unit;
[0033] The power supply unit has a power interface and a voltage regulator connected to the power interface through a circuit breaker; the voltage regulator has a selection switch for selecting the voltage regulator as manual mode or automatic mode, and the voltage regulator also has an output terminal and control terminal, the control terminal of the voltage regulator is connected with the industrial computer; before adjustment, select the adjustment mode through the selection switch, and the operator can directly adjust the voltage regulator manually, or adjust the voltage through the industrial computer. Indirect adjustment of the voltage regulator; the output terminal of the...
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