1. YZR, YZ series is the up to date design electric motor with the characteristic of big overload capacity and high mechanical strength, which is specially adequate for driving all sorts of metallurgical machinery and hoisting machine or the other similar equipments. YZR series is wound rotor electrical motor and YZ series is cage type electrical motor.
2. The electrical motor can normal operate in the following environmental conditions.
(1.) Cooling medium temperature is no more than 60℃(electrical motor of metallurgy) or 40℃( hoisting motor).
(2.) The altitude is no more than 1,000 meters
(3.) Regular and obvious mechanical vibration and mechanical shock
3. The electrical motor can normally work in the following loading condition:
(1.) Regular starting and back turn
(2.) Regular electrical appliance braking and mechanical braking
4. Rated frequency: 50 Hz, rated voltage: 380V
5. Rejoining method: stator winding uses Y rejoining method when the power is 132 kilowatt or lower 132 kilowatt. The others use △ rejoining method.
6. Model clarification:
7. Output power and rotate speed
Output power and synchronous speed of norm working system rated is seen in the following list:
（specification of manufacturing thick line frame of cage type electrical motor）
| Engine base | Synchronous speed | |||
| 1000 | 750 | 600 | ||
| 112M | 1.5 | |||
| 132 | M1 | 2.2 | ||
| M2 | 3.7 | |||
| 160 | M1 | 5.5 | ||
| M2 | 7.5 | |||
| L | 11 | 7.5 | ||
| 180L | 15 | 11 | ||
| 200L | 22 | 15 | ||
| 225M | 30 | 22 | ||
| 250 | M1 | 37 | 30 | |
| M2 | 45 | 37 | ||
| 280 | S | 55 | 45 | 37 |
| M | 75 | 55 | 45 | |
| 315 | S | 75 | 55 | |
| M | 90 | 75 | ||
| 355 | M1 | 90 | ||
| L1 | 110 | |||
| L2 | 130 | |||
| 400 | L1 | 160 | ||
| L2 | 200 | |||
8. The guaranteed value of ratio of the maximum torque to rated torque of YZR series electrical motor in the rotated voltage while norm-working system is seen in the following list.
| Rated power (KW) | Maximum torque/rated torque |
| ≤5.5 ＞5.5～11 ＞11 |
2.3 2.5 2.8 |
9. The guaranteed value of ratio of the maximum torque to rated torque of YZR series electrical motor in the rotated voltage while norm-working system is seen in the following list.
| Rated power (KW) | Maximum torque/rated torque | Locked rotor torque/ rated torque |
| ≤5.5 ＞5.5～11 ＞11 |
2.0 2.3 2.5 |
2.0 2.3 2.5 |
10. (1.) Safeguard grade: metallurgy: IP54, hoist: IP44
(2.) Cooling means: engine base 112~132—IP 0041, engine base 160~335—IC0141, engine base 400—IC0151
(3.) Insulation grade: metallurgy: H grade, hoist: F grade
(4.) the structure and installation form are seen in the following list:
| Installation and installation Form |
Code | Offered Engine Base | Shaft Extension |
 |
1M1001 | 112～160 | One end round column shaft extension |
| 1M1003 | 180～400 | One end taper cone shaft extension | |
 |
1M1002 | 112～160 | Two ends round column shaft extension |
| 1M1004 | 180～400 | Two ends taper cone shaft extension | |
 |
1M3001 | 112～160 | One end round column shaft extension |
| 1M3003 | 180 | One end taper cone shaft extension | |
 |
1M3011 | 112～160 | One end round column shaft extension |
| 1M3013 | 180～315 | One end taper cone shaft extension |