Korail Class 321000
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- 321-01~321-18 (part): Rotem
- 321-18 (part)~321-21: Hyundai Rotem
- 321-01~321-18(part): 2006
- 321-18(part): 2008
| Korail Class 321000 | |
|---|---|
 Class 321000 train 321-16 arriving at Digital Media City station | |
| In service | 2008-present |
| Manufacturer |
|
| Constructed |
|
| Refurbished | 2010-2011 |
| Formation | 8 cars per train TC-M-M'-T-T-M-M'-TC |
| Operators | Korail |
| Depots | Yongmun |
| Lines served | Gyeongui-Jungang Line |
| Specifications | |
| Car body construction | Steel |
| Doors | 4 per side, 8 per car |
| Maximum speed | 110 km/h (68 mph) |
| Traction system | Toshiba COVO52-A0 VVVF-IGBT propulsion system using IGBT 1C4M motors |
| Power output | 4,400 kW (5,900 hp) |
| Acceleration | 3.0 km/(h⋅s) (1.9 mph/s) |
| Deceleration | 3.5 km/(h⋅s) (2.2 mph/s) (service) 4.5 km/(h⋅s) (2.8 mph/s) (emergency) |
| Electric system(s) | 25 kV 60 Hz AC/1.5 kV DC overhead catenary |
| Current collection | Pantograph |
| Braking system(s) | Regenerative |
| Safety system(s) | ATS |
| Coupling system | Shibata-type |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) |
The Korail Class 321000 trains, created from an assortment of Class 5000, Class 6000, and new cars, are commuter electric multiple units in South Korea used on the Gyeongui-Jungang Line. Class 321000 trains were manufactured and delivered between 2006–2009 to provide service on what was known as the Jungang Line at the time, and to address progressing extensions starting from the extension to Paldang station.
Electrical parts
All trains use IGBT controls and use passive cooling with a heat pipe. The trains are also equipped with regenerative braking, reducing energy consumption and simplifying train inspection, and they use electric door motors.
Interior design
The Class 321000 trains sport a white-colored interior. LED monitors are installed on the top of each car for trains 321-01~321-14, and LCD monitor displays are installed on the side of each car for trains 321-15~321-21. The end cars have a space for wheelchairs, and trains 321-20~321-21 feature bike racks and retractable seating.
Cabin
The Class 321000 trains share the same cabin design with the Class 311000 as many of the cars are converted Class 311000 trains. Stop notifiers are installed, as are TGIS use color displays. Dead section notifiers are also installed.
Formation
The Class 321000 trains are organized into an TC-M-M'-T-T-M-M'-TC formation. The symbols are defined below.
- M' car: pantograph, main transformer, controller, motor
- M car: controller
- Tc car: Secondary power device, SIV, and air compressor, battery
- T car: trailer (unpowered)
The cars of each train are numbered to correspond to the type of car each car is: 3210XX - Tc (trailer driving car) 3211XX - M (motor car) 3212XX - M' (motor car) 3213XX - T (trailer) 3214XX - T 3215XX - M 3216XX - M' 3219XX - Tc
Depot
The Class 321000 trains are stored at the Yongmun train depot, which is a few kilometers east of Yongmun station.
