☆10th Anniversary of TOQBOX9000 Channel☆ Almost everything is included! Enjoy the sounds of the VVVF inverter trains that are active in the metropolitan area♪ Enjoy the sound of the motors of Japanese trains running in Tokyo. Enjoy the sound of the motors of Tokyo! Enjoy the sounds of the motors of Tokyo! ¡ Enjoy the sound of the motors of Tokyo! ※I intended to include "almost everything", but I have excluded some because I get bored of inverter trains that make the same sounds even with updated equipment or different models from the same railway company. In addition, electric locomotives and commercial vehicles are difficult to photograph (I would like to do so someday), and new transportation systems and monorails are not included because it is difficult to hear the sounds. Additionally, vehicles from JR Central, the Niigata area, and the Tohoku region have been excluded. [Good Sound♪Sound Train Video Series No.355] ---------------------------------------------------------------------- Chapter videos are played by railway company 00:00 JR East Commuter/Suburban 11:05 JR East Limited Express 21:24 Tokyo Metro 35:55 ​​Tokyu Railway 46:33 Tobu Railway 56:27 Odakyu Railway 1:09:36 Seibu Railway 1:18:14 Keio Railway 1:24:55 Toei Subway 1:35:03 Keikyu Railway 1:46:07 Tokyo Monorail 1:47:53 Keisei Railway 1:57:33 Sotetsu Line 2:03:50 Yokohama Municipal Subway 2:08:19 Tsukuba Express Line 2:09:30 Sequel ⬇ Kansai Train VVVF Variation 2022 • Good Sound♪ Kansai Train VVVF Variation 2022 [Train motor ... ------------------------------------------------------------------------- Thank you! Thanks to you, it's been 10 years since the channel was launched! We will continue to search for good sounds from all over the country, so please continue to support this channel. -------------------------------------------------------------------------- ●How to read the vehicle spec sheet● ■Control device■ Hitachi: Hitachi Mitsubishi: Mitsubishi Electric Toshiba: Toshiba Toyo: Toyo Electric GTO element: Gate Turn Off Thyristor It is not the Great Teacher Onizuka or the GTO of an automobile. It is an element that can withstand large voltages and currents, and is characterized by a large motor magnetic field sound. IGBT element: Insulated Gate Bipolar Transistor It has less vibration and noise than GTO elements, and has less current loss, so it is energy-saving. MOSFET element: It is difficult to explain, so I will omit the explanation. It is even more energy-saving than IGBT elements, and the VVVF control device box is more compact and lightweight. *What is SiC? You can see the terms SiC element and SiC-VVVF written all over the Internet, but this is incorrect writing. SiC is a plastic semiconductor material called silicon carbide, and SiC is not an inverter element. The correct way to write it is SiC-applied MOSFET-VVVF. In the videos on this channel, we abbreviate it to full SiC-VVVF. Also, hybrid SiC is called hybrid because SiC material is used in part of the IGBT-VVVF. ■Drive unit■ A device that transmits power between the motor and the gears of the wheel axle. Most VVVF trains are cardan-driven. Linear motor trains do not have a drive unit. TD: Twin Disc and Toyo denki Abbreviation WN: The initials of two American companies TD Cardan has a complex structure and is expensive, but has low noise and vibration. WN is relatively cheap, but vibration and noise increase at high speeds. Green cars on the Shinkansen use TD and ordinary cars use WN, and some trains use different types depending on the vehicle. ■Main motor■ A motor like a laundry basket is fixed so that it is hooked onto the cart. Ordinary induction motors have holes for cooling and filters to keep out dirt and other things, which must be replaced periodically. Recent fully sealed motors are quieter, as the name suggests. PMSMs are also fully sealed. kW (kilowatts) Motors with a rated output of 95kW are on the weak side, while 200kW is quite powerful. Most are around 150. Gear ratio The ratio of the small gear on the wheel side to the large gear on the motor side. A larger gear ratio increases the "rotational force" of the wheel, resulting in high low-speed performance (good acceleration), but low high-speed performance (subways, commuter trains, etc.). A smaller gear ratio increases the wheel rotation speed, resulting in low acceleration at low speeds, but high performance at high speeds (bullet trains, limited express trains, etc.). It's the same as bicycle gears. Gear 1 is light and has good acceleration (for subways), and gear 6 is heavy and is only used when the speed is high (for bullet trains). I sometimes see weirdos who use it with 6 gears, but it just makes them tired. ■MT ratio■ The ratio of motorized cars to non-motorized cars. For example, if a 10-car train has 6 motorized cars, it is 6M4T. In recent years, the 0.5M system has been widely seen, but since the motor is only attached to one side of the motorized car, in the case of a