the work of the three-phase circuit is not only related to the three-phase power, but also to the nature and connection of the three-phase circuit. Three-phase circuit applications is wide used in various fields, the experiments about the operation of the three-phase circuit are very important and inevitable. However, the actual three-phase high voltage circuit, the diverse nature of load, which for three-phase circuit test not only the risk of larger, but some of the fault to test more difficult.The circuit simulation software Multisim provides various component models and analysis tools for the three-phase circuit simulation, in this paper symmetrical triangle and star circuit connecting link circuit, asymmetric load star triangle connecting circuits and circuit were theoretical studied first, and then Multisim was used to analyze the simulation, and compared with the theory results. The results of this comparison showed that the simulation software was shortcut, convenient, and perfect, Multisim software is used for all kinds of the simulation analysis of the three-phase circuit, the advantages are very clear, it is propitious to generalize in electrical experiments.
Key words:
Three-phase circuit, Voltage, current, Multisim software, Simulation