Added: 4 years ago
From: hkvvvf
Views: 59,391
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  • звук частотника)

  • if you like that sound, search "montreal metro jeumont" and you will say it's better ;D

  • 今後は装置更新で歌わなくなります。

  • omg harmonica sounds

  • it's like a scale^^

  • The sound comes from the conversion bridges of the frequency inverters in the power stacks. The frequency is raised to increase the speed of the three-phase asynchronous motor in the train.

  • hehe ure right it is musical so weird

  • OMG the departure sound is very different !

  • LOLOLOL musical train

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