Insulation class and limit temperature of motor
Insulation class and limit temperature of motor
1. For generators with different insulation structures, the allowable generator temperature rise limits are different.
2. And, generator temperature rise limit + ambient temperature < limit temperature of different insulation grades.
3. In this way, it can be ensured that the operating temperature of the generator is lower than the limit temperature of the corresponding insulation grade, and the safety and operating life of the generator can be ensured.
The insulation structure and generator design of the top grid products are H class.
Unit: degree
| Insulation class | B | F | H |
| ambient temperature | 40 | 40 | 40 |
| Limit temperature of insulating material | 130 | 155 | 180 |
| Motor temperature rise limit | 80 | 105 | 125 |
Remarks: The temperature rise limit of the generator is the temperature rise limit measured by the resistance method.