Nowadays, there is a lot of talk about replacing the copper enameled wire with aluminum enameled wire in the market, and the accompanying aluminum motor came into being. What are the differences between copper enameled wire and aluminum enameled wire? How to identify? In fact, it is not difficult for us to distinguish it from its metal principle.
1. Because the resistance value of aluminum wire with the same area is higher than that of copper wire, if you want to obtain the same current in the operation of the motor, you must increase the cross-sectional area of aluminum wire, and intuitively we will find that its diameter will increase.
2. Due to the different physical properties of different metals, aluminum wires cannot have the same good stretchability as copper wires, and aluminum wires for motors with the same power are thicker than those for motors with the same power.
3. In order to obtain the same working capacity, the wire diameter of aluminum wire should be thickened, and the winding should be increased. The originally designed trunking is not enough to completely inlay. In order to enlarge the trunking, the outer diameter and thickness of the stator need to be increased.
Intuitively, we can easily distinguish whether the motor is made of copper wire or aluminum wire through appearance, and we can obtain satisfactory results through simple measurement.