NYC Transit R179 MITRAC IGBT-VVVF Motor Radio Test
Автор: error46147
Загружено: 2020-12-18
Просмотров: 8022
Описание:
I tested the motor radio further, and took it upon an R179 set.
I did not get a speedometer recording for this video so I played an waveform and spectral analysis over Adobe Audition.
For the second day, I feel like the motor radio is picking up a lot more static noise than when I recorded the MITRAC motor sound yesterday. I suspect a leaky earth that's getting worse: my ideas are either a ground cable which I would have to grab continuously, or build a metal ground plate for it.
Thoughts are welcome.
Approximate Speeds for transition:
Async to Multi pulse sync: 13 mph
Multi pulse sync to full sync: 30 mph
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