Osaka Municipal Subway New 20 series

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Osaka Municipal Subway New 20 series
Series23 igbt renew.jpg
Osaka Municipal Subway 23 series in revised livery at Tamade Station, January 2013
In service 1990–
Manufacturer Alna Kōki, Hitachi, Kawasaki Heavy Industries, Kinki Sharyo, Nippon Sharyo, Tokyu Car Corporation
Replaced 30 series
Constructed 1990–1998
Refurbishment 2011–
Number built 572 vehicles
Number in service 572 vehicles
Formation 10 cars per trainset (21 series)
6 cars per trainset (22/23/24 series)
4 cars per trainset (25 series)
Operator(s) Osaka Municipal Subway
Depot(s) Nakamozu (21 series)
Dainichi (22 series)
Midorigi (23 series)
Morinomiya (24/25 series)
Line(s) served Midōsuji Line
Tanimachi Line
Yotsubashi Line
Chūō Line
Sennichimae Line
Kitakyū Namboku Line
Kintetsu Keihanna Line
Specifications
Car body construction Stainless steel
Train length 187,400 mm (614.8 ft) (21 series)
112,600 mm (369.4 ft) (22/23/24 series)
75,200 mm (246.7 ft) (25 series)
Car length 18,900 mm (745 in) (end cars)
18,700 mm (735 in) (intermediate cars)
Width 2,890 mm (115 in) (end cars)
2,880 mm (115 in) (intermediate cars)
Height 3,745 mm (145 in)
Doors 4 pairs of sliding doors per side
Maximum speed 95 km/h (60 mph) (24 series)
70 km/h (45 mph) (other series)
Traction system Variable-frequency
Traction motors Four 140 kW (190 hp) traction motors per motor car
Power output 560 kW (750 hp) per motor car
Acceleration 3.0 km/h/s (21/24 series)
2.5 km/h/s (other series)
Deceleration 3.5 km/h/s (4.5 km/h/s emergency)
Electric system(s) 750 V DC
Current collection method Third rail contact shoes
Braking system(s) Electric commanding brake with regenerative brake
Safety system(s) WS-ATC (21/22/23/24 series)
WS-ATC, CS-ATC, ATO (25 series)
Track gauge 1,435 mm (4 ft 8 12 in)

The Osaka Municipal Subway New 20 series (大阪市交通局新20系?) is a rapid transit electric multiple unit (EMU) train type operated by Osaka Municipal Subway in Japan since 1990.

Formation[edit]

21 series[edit]

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tec2 Ma2 Mb2 T T' Ma1' Tbp Mb1 Ma1 Tec1
Numbering 2900 2200 2300 2500 2800 2400 2700 2100 2000 2600

22/23/24 series[edit]

Car No. 1 2 3 4 5 6
Designation Tec1 Mb1' T' Mb2 Ma2 Tec2
Numbering 2600 2100 2800 2300 2200 2900

25 series[edit]

Car No. 1 2 3 4
Designation Tec1 Mb1' Mb2 Tec2
Numbering 2600 2100 2300 2900

References[edit]