To understand whether Chinese high voltage switchgears with rated frequency of 50 Hz can be exported to and directly used in the regions where the rated frequency of electric equipment is 60 Hz

and whether there are economical and available means to solve this problem

the authors collect the testing requirements of high voltage switchgears with rated frequencies of 50 Hz and 60 Hz in relevant IEC standards

and the requirements are analyzed.Furthermore

on the basis of the analysis

an economical and effective solution to the interoperability of the high voltage switchgears with both rated frequencies is proposed by way of example.