Bombardier IGBT VVVF | S7/S8 Stock Traction Sound | PWM Inverter - S7/S8 Stock Inductor Recording

S Stock traction inverters - part of the Movia family worldwide using the MITRAC TCMS. We can see: 1kHz RCFM, followed by various sync modes. This Mitrac inverter is the same TC1XXX platform used to drive the DR1000 traction motors of the 2009TS and Electrostars. Noise reduction post-processing: Manual noise removal Equipment used: 2x 1000mH telephone pickup coil Tascam DR40X 00:00 Electromagnetic 14:57 Natural Sound 29:48 Electromagnetic & Natural Sound London Underground S Stock Traction Motor Sound London Underground S7 Stock Traction Motor Sound London Underground S8 Stock Traction Motor Sound #induction #inductorwindingmachine #motor #vvvfサウンド #vvvfインバータ #vvvf #train