Alternator: Testing and Inspection

WAVE PATTERN CHECK USING AN ANALYZER




MEASUREMENT METHOD
Connect the analyzer special patterns pick-up to the generator B terminal.

Standard Waveform:

NOTE: Furthermore, the voltage waveform of the generator B terminal can undulate as shown. This waveform is produced when the regulator operates according to fluctuations in the generator load (current), and is normal for the generator.

Abnormal Waveforms Examples: