721 series
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721 series | |
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In service | 1988–Present |
Manufacturer | Hitachi, JR Hokkaido, Kawasaki Heavy Industries, Tokyu Car |
Constructed | 1988–2003 |
Number built | 135 vehicles (34 sets) |
Number in service | 132 vehicles (33 sets) |
Formation | 3/6 cars per trainset |
Operators | JR Hokkaido |
Depots | Sapporo |
Lines served | Hakodate Main Line, Chitose Line |
Specifications | |
Car body construction | Stainless steel |
Car length | 21,670 mm (71 ft 1 in) (end cars) 21,300 mm (69 ft 11 in) (intermediate cars) |
Width | 2,954 mm (9 ft 8.3 in) |
Height | 4,090 mm (13 ft 5 in) |
Doors | 3 per side |
Maximum speed | 130 km/h (81 mph) |
Traction system | Thyristor drive (1-5th batch) GTO-VVVF (6th batch onwards) |
Electric system(s) | 20 kV AC (50 Hz) |
Current collector(s) | Overhead line |
Safety system(s) | ATS-DN |
Multiple working | 731 series, 733 series, 735 series |
Track gauge | 1,067 mm (3 ft 6 in) |
The 721 series (721系) is an AC electric multiple unit (EMU) operated by Hokkaido Railway Company (JR Hokkaido) on Sapporo area suburban services in Hokkaido, Japan since 1988.[1]
Design[edit]
The trains were built jointly by Hitachi, JR Hokkaido (Naebo Factory), Kawasaki Heavy Industries, and Tokyu Car (Yokohama).[2]
Fleet[edit]
As of 1 April 2012, the fleet consists of 135 vehicles, formed as 23 3-car sets and 11 6-car sets.[3]
Variants[edit]
- 721-0 series
- 721-1000 series
- 721-2000 series
- 721-3000 series
- 721-4000 series
- 721-5000 series
Withdrawal[edit]
Withdrawals of the 721 series commenced in 2023 with 721-3000 series set F-3016 being scrapped as of August.[4]
References[edit]
Wikimedia Commons has media related to JR Hokkaido 721.
- ^ JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. pp. 312–318. ISBN 978-4-7770-0836-0.
- ^ Saka, Masahiro (March 2014). "JR第1世代の車両・現況と概要" [JR 1st-generation rolling stock: Current situation and overview]. Tetsudō Daiya Jōhō Magazine (in Japanese). 43 (359): 22.
- ^ JR電車編成表 2012夏 [JR EMU Formations - Summer 2012]. Japan: JRR. May 2012. pp. 6–7. ISBN 978-4-330-28612-9.
- ^ "【もうそんな時代か…】721系の解体を開始【JR北海道】" [[Is it that time already?] Dismantling of 721 series begins [JR Hokkaido]]. RM News (in Japanese). Japan: Neko Publishing. 29 August 2023. Retrieved 24 April 2024.