Technical Data And Connection Of The Electric Components; Internal Alternator - Rotax 912 i Series Installation Manual

3) Technical data and connection of the electric components

3.1)

Internal alternator

See
General note
Two alternators are built into the stator. Alternator A is only used for elec-
tronic engine components (ignition, injection and sensors). Alternator B is
used primarily to start the engine and to charge the aircraft battery.
While the engine is running, alternator B can be used for the on-board
instruments.
- Alternator A 14 V/16 A (220 W nominal capacity at 20°C/68 °F)
- Alternator B 14 V/30 A (420 W nominal capacity at 20°C/68 °F)
Performance diagram showing engine speed against amps
Graphic







Fig. 4
NOTE:
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
INSTALLATION MANUAL
Fig. 4.
If alternator A fails, alternator B takes over its func-
NOTICE
WARNUNG
tions. This means that the battery will no longer be
charged and no voltage will be available for the on-
board instruments.
  
The measurement is taken at an oil temperature of 135 °C
(275 °F).
Stator 912 iS
Alternator B
Alternator A
 
Engine Speed [rpm]
*HQHUDWRU$OWHUQDWRU $
*HQHUDWRU$OWHUQDWRU %
 
06591
24-00-00
Page 9
January 01/2012