Loss of magnetism is a situation we encountered when using PMDC Motor, but in order to help you understand this situation, let's introduce the criteria for judging whether it loses magnetism. Interested friends come and learn about it together.
1. The no-load speed will increase, the load is likely to drop, and the current will increase;
2. The instantaneous current when the permanent magnet DC motor starts is very large. It does not depend on your no-load current. You can lock the rotor and see how large the current is to know how large the instantaneous current can reach when starting;
3. Constantly turn to start.
The above three aspects can be used to determine whether a permanent magnet DC motor loses magnetization. The loss of magnetism can directly affect the use of the equipment, so everyone should pay attention to it. Therefore, we can refer to the above methods to judge whether it loses magnetism during use.
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