曝光臺 注意防騙 網曝天貓店富美金盛家居專營店坑蒙拐騙欺詐消費者

并鎖定在閉合位。一個內部彈簧幫助跳開關打開并保持在松開位。這
個跳開關有6 個主115 伏交流觸點和20 個輔助觸點。這些輔助觸點
用來控制APU 發電機跳開關位置及外部電源接觸器，及駕駛艙內的
燈光指示。跳開關的閉合或松開信號指示來自P5-4 面板。跳開關觸
點位置由P5-4 面板上的藍色“APU GEN OFF BUS”燈指示。跳開關
可通過打開P6 面板低部的P6-11 及P6-12 電路跳開關后接近。
(5) Application of 28 volt dc to close, allows momentary energizing of the
coil . when the breaker closes, the coil deenergizes through the auxiliary
contact and the breaker is held closed by the permanent magnet.
Application of 28 volt dc to trip. Reverses the polarity of the coil and the
contactor opens assisted by the spring. The coil deenergizes through the
auxiliary contact.
28 伏直流電關閉的應用，允許線圈瞬時接通。當跳開關閉合時，線圈
通過輔助觸點斷電，跳開關通過永久磁鐵被保持在閉合位。28 伏直流
電松開的應用，將線圈極性反向，觸點在彈簧的幫助下打開。線圈通
過輔助觸點斷電。
(6) The 115 volt ac, 400HZ, 3-pahse power from an external source (ground
power unit ) can also be supplied to the airplane for systems use. The
external ac power system consists of an external power receptacle, bus
protection panel, two external power contactors, relays, switches and
indicating lights. The ac external power receptacle is located on the right
side of the airplane, forward of the nose wheel well, the bus protection
panel (BPP) is used for control and protection of the airplane circuits
connected to external power. The two external power contactors connect
115 volt ac, 400Hertz, 3-phase power to the distribution system from
external power source.
從外部電源的（地面電源）400HZ，115 伏三相交流電也能夠提供到
飛機上供系統使用。外部交流電源系統包括一個外部電源插座，匯流
條防換板，兩個外部電源接觸器、繼電器、開關及指示燈。外部交流
電源插座位于飛機右側、前輪艙前方。匯流條防護板用來保護與外部
電源連接的飛機線路。兩個接觸器將外部來的115 伏，400HZ 的三相
交流電源接到分配系統。
(7) The 115 volt ac system is supplied by two engine driven generators, APU
driven generator or external power. The powr is connected to the generator
main busses by engine generator breakers. APU breakers and external
power contactors. Power is also supplied to two transfer busses through
transfer relays. External power can be supplied to the external ac bus and
the ground service bus (this bus is used for servicing of the airplane). The
ground service bus can also be supplied from generator bus NO.1.
115 伏交流電源由兩臺發動機驅動的發電機、APU 發電機或地面電源
提供。它被發動機跳開關、APU 跳開關或地面電源觸點連接到發電機
主匯流條上，它也可以通過轉換繼電器接到兩個轉換匯流條上。外部
電源也能夠供到外部交流匯流條及地面服務匯流條上。地面服務匯流
條也能夠從一號發電機匯流條供電。
(8) The 28 volt ac system is obtained through transrformers from main,
transfer ,and ground service busses. The 28 volt dc power is supplied from
the battery and transformer rectifiers to the battery bus and two dc busses.
The power is connected to the busses by relays. The battery charger is
supplied with power from the 115 volt ac system. The electronic system
power is supplied from the 115 volt ac and 28 volt dc system. The standby
ac and dc busses are powered normally from the generated ac and dc
power. Alternately, the battery supplies power to the standby system. The
standby power components are located in the electronics compartment, P6
panel and p5 panel .the purpose of the standby power distribution is to
provide 115 volt ac and 28 volt dc power to essential system during
absence of normal supply.
通過轉換主匯流條、轉換匯流條或地面服務匯流條上的電源可得到28
伏交流電。28 伏直流電由電瓶及轉換整流器到電瓶匯流條和兩個直流
匯流條。28 伏直流電被繼電器接到這個匯流條上。電瓶充電器由115
伏交流電供電。電源系統由115 伏交流和28 伏直流電提供。備用交
流和直流電由正常交流和直流電提供。另一方面，電瓶為備用系統提
供電源。備用電源組件位于電子艙、P5 及P6 面板。備用電源分配的
目的是在無法正常供電的期間為必要系統提供115 伏交流電或28 伏
直流電。
LESSON 20 NAVIGATION 導航
一、單詞
導航Navigation 計算Compute 運動Movement
包含Include 子系統Subsystem 自動定向儀Automatic
director finder
相對方位Relative bearing 甚高頻全向信標Very high
frequency
omnirange
儀表著陸系
統
Instrument
landing system
磁方位角Magnetic bearing 偏離航線Course
轉動Turn 最佳的Optimum 測距儀Distance
measure
equipment
斜距Slant range 空中交通管制Air traffic
control
識別Identification
高度Altitude 大氣數據系統Air data
system
全壓Pitot pressure
靜壓Static pressure 不同的Various 慣性基準系
統
Inertial reference
　
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