Induction three-phase electric motors with increased slip

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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    
——    
Inom
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
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