TROUBLESHOOT FREQUENCY AC GENERATOR PESAWAT DC-9

GOLDYAPRAKOSO, ROYCE (2018) TROUBLESHOOT FREQUENCY AC GENERATOR PESAWAT DC-9. Tugas Akhir thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

Generator is the most important component for producing electrical power. It changes the mechanical energy into electricity. Aircraft requires a constant voltage, current, and frequency. Constant speed drive will make generator have a constant input from engine. If the frequency is in over or under conditions, it means that there is a problem with the constant speed drive. Indicator showed 390 Hz frequency. Adjustment is needed in order to solve that problem. Adjustment could be done by turn the adjustment screw. Adjustment screw is located in governor section. governor will affect the constant speed drive. It will make constant speed drive have a 6000 RPM. Turn the screw clockwise will add 18 Hz and turn the screw counter clockwise will subtract 18 Hz of frequency. It is importance to make sure the frequency is 400Hz after adjustment.

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