부산도시철도 2호선 알스톰 GTO 가속음과 다원시스 IGBT 가속음 비교영상

부산도시철도 2호선 알스톰 GTO 발차영상과 다원시스 IGBT 발차영상을 모아봤습니다 엔진 GEC-ALSTOM GTO VVVF DAWONSYS VVVF-IGBT Busan transportation comporation line 2 Alstom GTO engine leaving sound and Dawonsys IGBT engine leaving sound compare video I collected Busan transportation comporation line 2 Alstom GTO engine leaving video and Dawonsys IGBT engine leaving video Engine GEC-ALSTOM GTO VVVF DAWONSYS VVVF-IGBT Busan transportation comporation line 2 Alstom GTO engine mag-iwan tunog at Dawonsys IGBT engine mag-iwan tunog ihambing video Engine GEC-ALSTOM GTO VVVF DAWONSYS VVVF-IGBT