Traction Motors AC
Features
- Insulated roller bearing for rotor.
- High quality electrical sheet steel for rotor & stator stamping.
- Corona resistant Kapton covered copper conductor for stator coil.
- Bath impregnated rotor with epoxy resin.
- MIG welded rotor cage with special alloy shrink rings.
- Terminal box arrangement for housing loco cable.
- Inbuilt temperature & speed sensors assemblies for monitoring & controlling microprocessor.
- The insulation system is specifically developed for Indian Railways. This insulation system has the following excellent features:
– Excellent resistance to thermal stress
– Excellent voltage endurance properties
– Both high impact and high vibration resistance at extremely high temperature
– High operational reliability & insensitive to extraneous conditions. - Frameless construction of motor.
Selection Chart
| TRACTION MOTOR AC | ||||
| 6FXA7059TM | 6FRA6068TM | C1004TM | ||
| APPLICATION | 6000HP, 25kV AC Electric Locomotives for passenger application | 6000HP, 25kV AC Electric Locomotives for goods application | 4000HP Diesel Locomotives for passenger & goods application | |
| CONTINUOUS RATING | Volt | 2180 V | 2180 V | 1758 V |
| Current | 370 A | 270 A | 251 A | |
| KW | 1150 KW | 850 KW | 637 KW | |
| RPM | 1585 RPM | 1283 RPM | 1026 RPM | |
| ONE HOUR RATING | Volt | 2044 V | 2089 V | N/A |
| Current | 396 A | 290 A | N/A | |
| KW | 1150 KW | 850 KW | N/A | |
| RPM | 1485 RPM | 1135 RPM | N/A | |
| MAXIMUM RATING | Volt | 2180 V | 2180 V | 2028 V |
| Current | 593 A | 393 A | 326 A | |
| KW | 1150 KW | 850 KW | 637 KW | |
| RPM | 3571 RPM | 2842 RPM | 3776 RPM | |
| NO. OF POLES | 6 | 6 | 4 | |
| FREQUENCY | 80 TO 161 Hz | 65 TO 132 Hz | up to 129 Hz | |
| VENTILATION | Force ventilation | Force ventilation | Force ventilation | |
| INSULATION CLASS | Class 200 | Class 200 | Class 200 | |
| TYPE OF SUSPENSION | Fully suspended | Axle Suspended | Axle Suspended | |
| REDUCTION GEAR | Helical gear coupling | Single Reduction Gear | Single Reduction Gear | |
