AIR PRECISION
Slip ring assembly
DownloadSlip rings for aeronautical applications
This high density slip ring is fitted on the main rotor of a helicopter. It supplies power for de-icing and folding of the blades, and for the navigation lights.
| Group of rings | A | B | C | D | E | |
|---|---|---|---|---|---|---|
| Number of rings | 12 | 5 | 5 | 80 | 2 | |
| Current | (A) | 150 | 5 | 10 | 2 | 30 |
| Nominal voltage | (V) | 360 | 28 | 200 | 28 | 0 |
| Frequency | (Hz) | DC | DC | 400 | 500 k | - |
| Insulation resistance | (MΩ) | 500 | 500 | 500 | 500 | - |
| Dielectric strength | (V) | 2000 | 500 | 1500 | 500 | - |
| Contact noise | (µV/mA) | 1 | 15 | 10 | 20 | - |
Additional specifications
| Term | Specifications |
|---|---|
| Speed : | 300 rpm |
| Service life : | 80.10E6 rotations |
| Sealing : (NFC 20-010) | IP 54 |
| Relative humidity : | 95 % |
| Weight : | 17 kg |
| Operating temperature : | -40 < T (°C) < +100 |
AIR PRECISION
5, avenue Denis Papin - 92353 LE PLESSIS ROBINSON cedex - France
Tel : +33 (0)1 46 01 21 24
Fax : +33 (0)1 46 31 85 25
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