[Inductor Recording] Qingdao Metro Line 13 CRRC QDSFI IGBT-VVVF

#モハラジオ #vvvf #moharadio
Use magnetic pickup, recorder and DI box to record IGBT-VVVF of Qingdao Metro Line 13, recording car 13233. ecording location: motor. Recording interval: Lingshanwei Staiton-Jimiya Station.
IGBT-VVVF made by CRRC Qingdao Sifang Rolling Stock Research Institute.
When Line 13 is running, there will be very large static interference, which is very obvious in the recorded spectrum.