This paper aims at the measurement accuracy of single-phase intelligent energy meter produced by different manufacturers when it is used online, and carries out relevant tests under the same actual load conditions. Through a new type of high precision single-phase installation type standard electric energy meter, simulating the actual use of users, using a variety of different power load to test the basic error and electric quantity running error of single-phase intelligent electric energy meter in actual operation. Then compare with the test data of the verification device under the reference condition in the laboratory to verify the reliability and consistency of the test data of the verification device under the reference condition.
