TokyoMetro 05 In Indonesia Now is process retrofit from 4-quadrant chopper to IGBT-VVVF, maybe, that use IGBT-VVVF 05series in Japan?
@4rammzy526
7 ай бұрын
happy 55th anniversary Tozai-sen 05-kei
@user-yajmtpd59jtwd
7 ай бұрын
「S」営団のマークあった。
@mateksyマテクスー
7 ай бұрын
How long will it be in service? I liked early 3-level Toshiba IGBT inverters (and old Eidan door chime). This sound has a Japanese climate but I can't explain this accurately :)
@mr.k179
5 ай бұрын
Unfortunately, all 3lv Toshiba IGBT sets are replaced by newer one (from Mitsubishi). The 05-124F was the last set with 3Lv Toshiba IGBT which left the service at the end of Feb. So, when it returned into service we wont hear that sound anymore;(
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