What is single phase,two phase and three phase electricity?

Please check your car's charging port's L2 and L3 silver pin filling condition. If L2 and L3 are not filled with silver pins, it means single-phase power. if L2 has silver pins, it means 2-phase power. if L2 and L3 have silver pins, it means 3-phase power. 3-phase power supplies are backward compatible, but the actual charging power depends on the configuration of your car. For example, if your car supports single-phase charging up to 32A7KW, when using a 32A22KW three-phase charger, you will only get 7kw of power instead.