If a customer experiences unusually high temperatures when applying a mechanical grill, it may be the following problems. First, the cooling circulating water is not very good. If the temperature of the cooling circulating water is too high, it will block the cooling circulating water or cause a lot of cooling circulating water. At this time, it is not enough to be sure to eliminate or adjust the cooling circulating water. 

1. The motor load operation causes the temperature to be too high, which causes the operating current to exceed the rated voltage. 

2. The wiring of the motor with coil inductance is incorrect, the star-delta wiring is incorrect, the wiring of the winding wire is incorrect, and the winding of the coil is incorrect. The number of turns of the coil is insufficient to reach the short-circuit capacity; 

3. The temperature is too high due to the common failure of the motor operation. The motor winding has an inter-turn short circuit fault and a grounding device, or the rolling bearing is damaged during operation;

4. Frequent forward and reverse rotation or too much starting frequency can also cause the motor temperature to be too high.

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