[Zongheng VVVF] Inductor-Recorded VVVF Sound of Localized Train on Tianjin Metro Line 1

Tianjin Metro Line 1's old trains use Mitsubishi traction system, MAP-164-75VD138 as traction inverter and MB-5114-A as motor. In the localize experiment carried out on train set 123#, the traction inverter was replaced by Zongheng's TKQ509SA-2000, so the train's motor sound is different. Recently the VVVF program was changed, the asynchronous modulation has a much higher carrier frequency than before.
Picture is from N509FZ

[@YAJ54S12G-1]

Nice video

[@minecraft_javjavatonkoonca8109]

Thanks

[@dabee1884]

Nice!

[@wushiqi28585]

Thanks!

[@minecraft_javjavatonkoonca8109]

I was make your house in Minecraft