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钻石42飞机飞行手册 DA 42 Airplane Flight Manual(110)

时间:2011-10-28 13:17来源:蓝天飞行翻译 作者:admin
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Hot battery bus:
The 'hot battery bus' is directly connected to the 'main' battery and cannot be disconnected from the 'main'-battery. The 'hot battery bus' provides power to the pilot map/reading light ' and ELT RCPI unit which are protected by there own fuses.
Battery bus:
The 'battery bus' is connected to the 'main' battery via the 'battery'-relay which can be controlled by the 'ELECTRIC MASTER' switch. The 'battery bus' provides power to the ' LH (RH) main bus' and heavy duty power to both starters.
ECU bus:
The 'LH (RH) ECU bus' is connected to the 'LH (RH) main bus' via a diode and connected to the power output line of the alternator via diode and a 30 Ampère circuit breaker and provides power for the ECU A and ECU B via the 'LH (RH) ECU A (B)'-Relays which are controlled by the 'LH (RH) ENGINE MASTER' switch. The 'LH (RH) ENGINE MASTER'-switch must be set to 'ON' to connect the ECU A and ECU B to the 'ECU bus'.
' To support the alternator electrical power supply to the ECU’s in case of a malfunction ' of the main battery, additional sealed-lead-acid batteries (ECU backup battery) are ' connected to the RH and LH ECU bus.
' If O.M 42-129 is carried out:
' These batteries are able to provide 30 minutes of engine operation in case of a complete ' airplane electrical failure. Both engines may stop if the 30 minutes have elapsed.
Page 7 - 52  Rev. 5  15-Nov-2007  Doc. No. 7.01.05-E 


Main bus:
The 'LH (RH) main bus' is connected to the 'battery bus' via a 90 Ampère circuit breaker. The 'LH main bus' provides power to the consumers directly connected to the 'LH main bus'. The 'RH main bus' provides power to the consumers directly connected to the 'RH main bus’ and the 'avionic bus' via the 'avionics master'-relay.
The 'AVIONIC MASTER'-switch must be set to 'ON' to connect the 'RH main bus' to the 'avionic bus'.
Consumers
The individual consumers (e.g. radio, position lights, etc.) are connected to the appropriate bus via automatic circuit breakers.
Designations and abbreviations used to identify the circuit breakers are explained in Section 1.5 DEFINITIONS AND ABBREVIATIONS.
Voltmeter
The voltmeter displays the voltage of the electrical system. Under normal operating conditions the alternator voltage is shown, otherwise it displays the 'main' battery voltage.
Ammeter
The ammeter displays the intensity of current which is supplied to the electrical system by the LH (RH) alternator.
Landing and taxi lights
Landing and taxi lights are built into the wing center section, and are each operated by means of a switch (LANDING, TAXI) located on the row of switches on the instrument panel.


Position and strobe lights
Combined position and strobe lights (anti collision lights) are installed on both wing tips. Each system is operated by a switch (POSITION, STROBE) located on the row of switches on the instrument panel.
 
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