Abstract: Currently, the general limitation of the output voltage and input current at home and abroad is 1 000V/80A, with the lowest frequency of 10Hz, which can not meet the actual needs of frequency electricity measuring instruments to examine. The research of the standard source of variable frequency power of wide range, could improve the system of traceability of frequency electricity, as well as change the predicament that frequency electricity measuring instruments is unable to trace and no standards can be referred to.

Key words: Standard source of variable frequency power, Frequency electricity measuring instruments