Three-phase induction motors with phase-wound rotor are of closed design with forced ventilation from separate fan are intended for the drive with heavy starting conditions (cement mills, fans).
Description: Mode of operation – S1 as per GOST 183-74.
Degree of protection – IP41, degree of protection of slip rings IP00 as per GOST 17494-87.
Method of cooling – ICW37 A91 or ICA37 as per GOST 20459-87.
Climatic version and location category – УХЛ4 or T3 as per GOST 15150-69.
Technical data:
Motor type | Power, kW | Voltage, V | Synchronous rotation speed, rpm | Design dynamic moment of armature inertia, kgm2 | Weight, kg |
АТ20С8-12УХЛ4 | 3550 | 6000 | 500 | 7500 | 34600 |
АТ20С8- 12Т3 | 3150 |
Motor type | Power, kW | Voltage, V | Synchronous rotation speed, rpm | Design dynamic moment of armature inertia, kgm2 | Weight, kg |
АТ20С12-12УХЛ4 | 4000 | 10000 | 500 | 10750 | 44200 |
АТ20С12- 12Т3 | 3550 | 11000 |