Electric energy meter calibration device and calibration system

Abstract

The present invention discloses an electric energy meter calibration device and a calibration system. The electric energy meter calibration device includes: a main control unit, a standard clock source; the standard clock source includes a detection clock source and a calibration clock source, which is used to provide the main control unit with a detection clock signal and a calibration clock signal to calculate the error value of the electric energy meter; the main control unit is respectively connected to the standard clock source and the electric energy meter under test, and is used to switch the detection clock source and the calibration clock source to output the required clock signal, so as to calibrate the electric energy meter under test according to the calibration clock signal and the clock signal of the electric energy meter under test, and detect the calibrated electric energy meter under test. It can be seen that the calibration device provided by the technical solution switches the standard clock source connected to the calibration circuit through the main control unit, so as to complete the detection clock accuracy and calibration work at one detection table position, without the need to transfer the electric energy meter under test, reducing the waste of time, improving the efficiency of calibrating the electric energy meter clock, and thus improving production efficiency.