An electrosurgical system for performing surgical procedures comprising: an electrosurgical generator adapted to perform a self-verification system test upon activation of the generator, the generator comprising: a processor configured to: cause initiating the self-verification system test; cause supplying RF energy to a connected electrosurgical hand device (20, 20'), if a failure of the generator is not detected; and cause generating a system error if the failure of the generator is detected and a failure threshold is reached; and a plurality of switchable impedance loads (81, 82) configured for use during the self-verification system test, characterized in that the processor is further configured to cause initiating the self-verification system test after determining a predetermined period of time has elapsed after starting the generator; and wherein the self-verification system test comprises a verification algorithm verifying the supplied RF energy directed to the plurality of switchable impedance loads across a plurality of RF resolution settings and a plurality of RF regulation modes, wherein for each of the pluralities of RF resolution settings and RF regulation modes the plurality of switchable impedance loads (81, 82) are set to a specific load configuration. a processor configured to: cause initiating the self-verification system test; cause supplying RF energy to a connected electrosurgical hand device (20, 20'), if a failure of the generator is not detected; and cause generating a system error if the failure of the generator is detected and a failure threshold is reached; and cause initiating the self-verification system test; cause supplying RF energy to a connected electrosurgical hand device (20, 20'), if a failure of the generator is not detected; and cause generating a system error if the failure of the generator is detected and a failure threshold is reached; and a plurality of switchable impedance loads (81, 82) configured for use during the self-verification system test, characterized in that the processor is further configured to cause initiating the self-verification system test after determining a predetermined period of time has elapsed after starting the generator; and wherein the self-verification system test comprises a verification algorithm verifying the supplied RF energy directed to the plurality of switchable impedance loads across a plurality of RF resolution settings and a plurality of RF regulation modes, wherein for each of the pluralities of RF resolution settings and RF regulation modes the plurality of switchable impedance loads (81, 82) are set to a specific load configuration. the processor is further configured to cause initiating the self-verification system test after determining a predetermined period of time has elapsed after starting the generator; and wherein the self-verification system test comprises a verification algorithm verifying the supplied RF energy directed to the plurality of switchable impedance loads across a plurality of RF resolution settings and a plurality of RF regulation modes, wherein for each of the pluralities of RF resolution settings and RF regulation modes the plurality of switchable impedance loads (81, 82) are set to a specific load configuration.