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Pilot Operating Handbook
POH-121-00-40-001
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SECTION
7
AIRPLANE DESCRIPTION
APPROVED
The circuit breakers (CB) are located under the switch/fuses of the switch
panel. An ammeter and a voltmeter are integrated in the MFD system and
they are displayed on EMS mode display to monitor electrical system oper-
ating. Generator failure is indicated by a warning red LED light on the Switch
panel (top, left, labeled GENERATOR FAIL).
7.8.3
POWER DISTRIBUTION
The Master relay connects the battery with main bus. Main bus supplies the
avionics relay which delivers the power to the switch panel and circuit break-
ers. Both 12V sockets are connected via switch/fuse directly to the main
battery.
The 22000uF/25V capacitor provides a continuous control voltage for the
regulator/rectifier in the event of momentary interruption of battery voltage.
This is necessary as generator output voltage is variable with RPM and may
increase to as much as 240V AC.
The avionics bus comprises all avionics loads and electrically operated in-
struments. For more detailed information see AMM - Chapter 91. Harnesses
of the electrical system from the engine is leading through the firewall and
connected to the electrical board and to other provided systems.
The electrical system is divided on three main subsystems (engine harness,
main electrical board and switch panel) which are than interconnect to all
equipment and devices.
Electrical supply from generator and battery is distributed to the following :
Equipment
Electrical Consumption
[A] @ 14 V
Garmin G3X avionics system which includes
dual display GDU37x (PFD,MFD), GEA24 (EIS),
GMC305 (AP PNL), 2x GSA28 (Servo motors),
2x GSU25 (ADAHRS), GMU22 (Magnetometer),
GTP59 (OAT sensor), and GAP26 (Pitot tube).
8.63 A (Max - Total)
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