The variable-multispeed three-phase asynchronous motor is one of the main derived series of three-phase asynchronous Motors. This type of motor has the characteristics of varying the speed with the requirements of the load nature, achieving a reasonable match of power and simplifying the transmission system. It is widely used in industrial and agricultural departments such as machine tools, mines, gold control, textiles, printing and dyeing, chemicals, and agricultural machinery.
The corresponding relationship between the power level and the installation size of YD series Motors is comparable to that of foreign advanced products of the same type, which facilitates the export of stand-alone or machine tools. It can also be used as a spare motor for the same type of motor in the imported equipment.
Comparison on the speed rates and power with the frame number
| frame NO. | Synchronous speed r/min | ||||||||
| 1500/3000 | 1000/1500 | 750/1500 | 750/1000 | 500/1000 | 1000/1500/3000 | 750/1500/3000 | 750/1000/1500 | 500/750/1000/1500 | |
| 1 YD 80 2 | 0.45/0.55 | — | |||||||
| 0.55/0.75 | |||||||||
| YD 90S | 0.85/1.1 | 0.65/0.85 | — | 0.35/0.45 | — | ||||
| YD 90L | 1.3/1.8 | 0.85/1.1 | 0.45/0.75 | 0.45/0.65 | |||||
| 1 YD 100L 2 | 2/2.4 | 1.3/1.8 | 0.85/1.5 | 0.75/1.1 | 0.75/1.3/1.8 | — | |||
| 2.4/3 | 1.5/2.2 | ||||||||
| YD 112M | 3.3/4 | 2.2/2.8 | 1.5/2.4 | 1.3/1.8 | 1.1/2/2.4 | 0.65/2/2.4 | 0.85/1/1.5 | ||
| YD 132S | 4.5/5.5 | 3/4 | 2.2/3.3 | 1.8/2.4 | 1.8//2.6/3 | 1/2.6/3 | 1.1/1.5/1.8 | ||
| 1 YD 132M 2 | 6.5/8 | 4/5.5 | 3/4.5 | 2.6/3.7 | 2.2/3.3/4 | 1.3/3.7/4.5 | 1.5/2/2.2 | ||
| 2.6/4/5 | 1.8/2.6/3 | ||||||||
| YD 160M | 9/11 | 6.5/8 | 5/7.5 | 4.5/6 | 2.6/5 | 3.7/5/6 | 2.2/5/6 | 3.3/4/5.5 | |
| YD 160L | 11/14 | 9/11 | 7/11 | 6/8 | 3.7/7 | 4.5/7/9 | 2.8/7/9 | 4.5/6/7.5 | |
| YD 180M | 15/18.5 | 11/14 | — | 7.5/10 | — | — | |||
| YD 180L | 18.5/22 | 13/16 | 11/17 | 9/12 | 5.5/10 | — | 7/9/12 | 3.3/5/6.5/9 | |
| 1 YD 200L 2 | 26/30 | 18.5/22 | 14/22 | 12/17 | 7.5/13 | 10/13/17 | 4.5/7/8/11 | ||
| 17/26 | 15/20 | 9/15 | 5.5/8/10/13 | ||||||
| YD 225S | 32/37 | 22/28 | — | – | — | 14/18.5/24 | — | ||
| YD 225M | 37/45 | 26/32 | 24/34 | 12/20 | 17/22/28 | 7/11/13/20 | |||
| YD 250M | 45/52 | 32/42 | 30/42 | 15//24 | 24/26/34 | 9/14/16/26 | |||
| YD 280S | 60/72 | 42/55 | 40/55 | – | 20/30 | 30/34/42 | 11/18.5/20/34 | ||
| YD 280M | 72/82 | 55/67 | 47/67 | – | 24/37 | 34/37/50 | 13/22/24/40 | ||
