Скачать с ютуб Bombardier IGBT VVVF | Class 387 Traction Sound | PWM Inverter - Class 387 Inductor Recording в хорошем качестве

Bombardier IGBT VVVF | Class 387 Traction Sound | PWM Inverter - Class 387 Inductor Recording

Class 357/375/377/379/387 traction inverters - the Electrostar sound when running on the 25kV AC power. Listen closely and see the three-level PWM patterns from the Mitrac DR1000 Train Control & Management System (TCMS used as a TCU) which run the Class 387 traction motors. Mistake: where it says 6P while braking, this is supposed to say MP. I've looked at the patterns briefly, thanks to the community we can see: MP Async, 15P Sync, 6P Sync, 5P Sync, 3P Sync, 1P Sync. Bombardier Transportation UK Ltd, the previous developer of the Electrostar platform, is now owned by Alstom Engineering and Services Ltd. Noise reduction post-processing: - 44100Hz sample of the ACU, HVAC, and Transformer - 48dB reduction - Triple sensitivity with no smoothing Filter: - 50Hz band - 102dB reduction Equipment used: - 2x 1000mH telephone pickup coil - Sony ICD-PX470 Class 357 Traction Motor Sound Class 375 Traction Motor Sound Class 377 Traction Motor Sound Class 379 Traction Motor Sound Class 387 Traction Motor Sound #induction #inductorwindingmachine #motor #vvvfサウンド #vvvfインバータ #vvvf #train