Abstract: With the increasing demand for power supply reliability from residents, the task of power supply guarantee is becoming more and more important. Medium-voltage generator cars play an irreplaceable role in various scenarios such as natural disasters, 10 kV distribution network facility failures, overload peak shaving, and comprehensive uninterrupted power operations. In order to verify the feasibility and applicable scenarios of different combinations of multiple medium-voltage generator cars carrying loads, a multi-mode application experiment of medium voltage generator cars is carried out. Five typical combination methods , namely single machine islanding, single machine forward synchronous grid connection, single machine forward and reverse synchronous grid connection, multi machine parallel islanding, and multi machine forward synchronous grid connection , are completed for carrying loads. The experimental results shows that carrying loads of multiple medium voltage generator cars under different combinations is feasible, providing effective reference for practical applications.