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Induction three-phase electric motors with increased slip
The motors are designed for drive of mechanisms with high time lag as well as mechanisms, which operate in repeatedly short-time mode (S3). These motors have slip, in case of nominal load, higher than basic motors. Critical slip of these motors is about 40%. It is provided by increasing of rotor winding resistance. The motors are unified with the basic version: the motor have additional letter “S” after series name. The motors are designed to operate with three-phase AC.
- Network frequency – 50 and 60 Hz
- Voltage – 220-660 V
- Protection degree of motor – IP54 (can be manufactured with IP55 on customer’s request)
- Protection degree of current lead – IP55
- Insulation class – F.
Technical characteristics in case of 380 V, frequency of 50 Hz
| Type | Output,
kW | Rotation
speed, rpm | Efficiency,
% | Cos φ | Мstart
—— Мnom | Мmax
—— Мnom | Istart
—— Iном | Average
noise level, dB(A) | Weight,
kg IM 1081 |
| AIRS 80 А2 | 1.9 | 3000 | 78.0 | 0.86 | 2.1 | 2.2 | 6.5 | 70 | 12.4 |
| AIRS 80 В2 | 2.5 | 3000 | 78.0 | 0.85 | 2.1 | 2.2 | 6.5 | 73 | 15.0 |
| AIRS 90 L2 | 3.5 | 3000 | 81.0 | 0.85 | 2.0 | 2.2 | 6.5 | 73 | 19.6 |
| AIRS 80 A4 | 1.32 | 1500 | 70.0 | 0.78 | 2.1 | 2.2 | 5.0 | 63 | 11.9 |
| AIRS 80 B4 | 1.7 | 1500 | 72.0 | 0.80 | 2.1 | 2.2 | 5.0 | 63 | 13.8 |
| AIRS 90 L4 | 2.4 | 1500 | 78.0 | 0.80 | 2.0 | 2.2 | 6.0 | 67 | 18.1 |
| AIRS 80 A6 | 0.75 | 1000 | 68.0 | 0.72 | 2.0 | 2.1 | 4.0 | 60 | 11.6 |
| AIRS 80 B6 | 1.25 | 1000 | 67.5 | 0.71 | 2.0 | 2.1 | 4.0 | 60 | 15.3 |
| AIRS 90 L6 | 1.7 | 1000 | 72.0 | 0.70 | 1.8 | 2.2 | 6.0 | 60 | 19.0 |
| AIRS 80 A8 | 0.45 | 750 | 58.0 | 0.63 | 1.4 | 1.7 | 3.0 | 57 | 13.8 |
| AIRS 80 B8 | 0.6 | 750 | 61.0 | 0.62 | 1.4 | 1.7 | 3.0 | 57 | 15.0 |
| AIRS 90 IA8 | 0.9 | 750 | 70.0 | 0.71 | 1.4 | 1.9 | 3.5 | 62 | 17.7 |
| AIRS 90 LB8 | 1.2 | 750 | 68.0 | 0.69 | 1.5 | 1.9 | 3.5 | 64 | 20.5 |
The following versions are available:
1) by mounting:
- on feet (IM 1081)
- with flange (IM 3041, 3641)
- combined (IM 2081, 2181)
- with second free shaft end (IM 1082, 2082, 2182, 3042, 3642)
- built-in (IM 5010);
2) by climatic conditions:
Electric motors can be manufactured for all climate regions (including marine, cold, tropical, etc.) on customer’s request.
3) special versions:
- chemically resistant (Kh2)
- marine (OM2)
- with integrated thermal protection (B)
- with increased accuracy (P).