Solar array drive
ASTRIUM can offer a variety of SADM configurations to meet the needs of both medium and hihgh power GEO satellites. These slipring based SADMs offer continuous angular rotation with large diameter main bearings to support a wide range of Solar Array configurations with no need to provide launch offloads.
Stepper motor drives are employed to enable both full step, and micro-step operation for applications requiring low disturbance torques. Rotational telementry is available and the Slipring configuration supports both Signal and Power transfer between the Array and platform
Features / technical details
- Mass (kg): 5.6 to 13
- Lifetime >15 years
Stepper Motor: Dual Stack configuration open loop control, mini-step operation (TBD steps within 0.3°), 2coil Bi-phase motor
| BAPTA | E2SADM | E3MP | E3HP | |
| Power Transfer | 0.8kW | 0.8< 5.6kW | 9kW | 18kW |
| Power Slipring Technology | AgMOS2 | AgMOS2 | Au | Au |
| Form | Cylinder | Disk | Cylinder | Cylinder |
| No of Tracks | 123 | 18<36 | 36 | 36 |
| Current Rating | 3.5A | 8A | 11A | 20A |
| Voltage Rating | 28v | 44v | 50-100v | 50-100v |
| Signal Slipring Technology | Au | Au | Au | Au |
| Form | Cylinder | Mini-capsule | Cylinder | Cylinder |
| No of Tracks | 123 | 18<36 | 36 | 36 |
| Current Rating | 3.5A | 8A | 11A | 20A |
| Voltage Rating | 28v | 44v | 50-100v | 50-100v |
| Load capability (Radial / moment) | 1200N or 150Nm | 3000N or 300Nm | 4500N or 450Nm | 4500N or 450N |
| Lubrication | solid | solid | solid | solid |
Categories
Applications
Geosynchronous Satellites
Non-sun synchronous orbit platforms
Potential applications to rotating instruments
Reference customers
- These units have in-flight heritage on the following programs:
- OTS, ECS, NATO, SKYNET, INMARSAT, ORION, HOTBIRD, ASTRA, HISPASAT, NILESAT, WORLDSTAR, ARTEMIS, INTELSAT.
- Customers:
- CNES, ASTRIUM SAS, INMARSAT, INTELSAT, ESA
