Tecnam P2002 JF - Description and Operation; Power Distribution

Page 1 2
nd
Edition – Rev 0
24-20
POWER DISTRIBUTION – TROUBLESHOOTING
24-20 POWER DISTRIBUTION
DESCRIPTION AND OPERATION
The power distribution is operated by battery bus and, if installed, by avionic bus.
The Battery bus, is energized from two sources: the battery and generator. This allows the bus
for remaining active also in case of a fault on a single supply path.
The optional avionic bus (dependent of battery bus) can be installed; it provides the power
distribution to avionics and is energized from the battery bus
On the instrument panel LH lower area (pilot side – see Figure below)) there are three
switches, each one featuring ON and OFF positions. The MASTER SWITCH allows for
connecting, through the battery relay, the battery to its own distribution bus. GENERATOR
switch controls the field signal to the generator: setting the switch to OFF the generator is put
off-line. The AVIONIC MASTER allows for connecting avionic bus to main distribution bus.
Figure 6. – Switches
1
Master switch
2
Generator switch
3
Avionic Master Switch (If installed)