731 series

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731 series
731 series set G116 in August 2009
ManufacturerKawasaki Heavy Industries, Hitachi[1]
Replaced711 series
Constructed1996–2006
Entered service24 December 1996
Number built63 vehicles (21 sets)
Number in service63 vehicles (21 sets)
Formation3 cars per trainset
Fleet numbersG-101–121
OperatorsJR Hokkaido
DepotsSapporo
Lines servedHakodate Main Line, Chitose Line
Specifications
Car body constructionStainless steel
Car length21.67 m (71 ft 1 in) (end cars)
21.3 m (69 ft 11 in) (intermediate cars)
Width2,800 mm (9 ft 2 in)
Height3,620 mm (11 ft 11 in)
Doors3 per side
Maximum speed130 km/h (81 mph)
Electric system(s)20 kV AC (50 Hz) overhead line
Current collector(s)Pantograph
Multiple working721 series, 733 series, 735 series, KiHa 201 series
Track gauge1,067 mm (3 ft 6 in)

The 731 series (731系) is an AC electric multiple unit (EMU) train type operated by Hokkaido Railway Company (JR Hokkaido) on Sapporo area suburban services in Hokkaido, Japan since 1996.[2]

Formation[edit]

As of 1 October 2016, 21 three-car sets are in service, numbered G-101 to G121, and based at Sapporo Depot. The trainsets are formed as follows, with one motored intermediate car and two non-powered driving trailer cars.[3]

Car No. 1 2 3
Designation Tc' M Tc
Numbering KuHa 731-100 MoHa 731-100 KuHa 731-200
Capacity
(total/seated) 		141/50 151/52 143/50

Car 2 is fitted with one N-PS785 single-arm pantograph.[3]

Interior[edit]

Seating consists of longitudinal bench seating throughout, without the vestibule areas used on the earlier 721 series trains.[2]

  • Interior view in February 2010
    Interior view in February 2010

History[edit]

KiHa 201 series DMU running in multiple with a 731 series EMU, January 2009

A total of 63 vehicles (21 sets) were delivered to Sapporo Depot between 1996 and 2006. The first units entered service from 24 December 1996.[4]

From the start of 22 March 1997 timetable revision, 731 series EMUs were operated in multiple with KiHa 201 series DMU sets over certain routes.[4]

Polycarbonate window protectors were added in 2002, and the original pantographs were replaced with single-arm pantographs between 2004 and 2005.[4]

Fleet history[edit]

The individual build histories of the fleet are as follows.[3][1][5][6]

Set No. Manufacturer Delivery date
G-101 Kawasaki Heavy Industries 12 December 1996
G-102 10 December 1996
G-103 Hitachi 13 December 1996
G-104 14 December 1996
G-105 Kawasaki Heavy Industries 23 February 1998
G-106 24 February 1998
G-107
G-108 22 March 1998
G-109 23 March 1998
G-110 24 March 1998
G-111 16 December 1998
G-112 17 December 1998
G-113 Hitachi 18 December 1998
G-114 19 December 1998
G-115 Kawasaki Heavy Industries 20 December 1999[7]
G-116
G-117 21 December 1999[7]
G-118 Hitachi 13 December 1999[7]
G-119
G-120 Kawasaki Heavy Industries 6 March 2006[8]
G-121 5 March 2006[8]

References[edit]

Wikimedia Commons has media related to JR Hokkaido 731.
  1. ^ a b JR車両のデータ・バンク 96/97 [JR rolling stock databank – 96/97]. Japan Railfan Magazine (in Japanese). Vol. 37, no. 435. Japan: Koyusha Co., Ltd. July 1997.
  2. ^ a b Jēāru zensharyō handobukku: Rail Magazine 2009 JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. ISBN 978-4-7770-0836-0.
  3. ^ a b c Jr電車編成表 JR電車編成表 2017冬 [JR EMU Formations – Winter 2017] (in Japanese). Japan: Kotsu Shimbunsha. 16 November 2016. p. 7. ISBN 978-4-330-73716-4.
  4. ^ a b c JR電車編成表 2010夏 [JR EMU Formations – Summer 2010]. Japan: JRR. May 2010. p. 2. ISBN 978-4-330-14310-1.
  5. ^ JR車両のデータ・バンク 97/98 [JR rolling stock databank – 97/98]. Japan Railfan Magazine (in Japanese). Vol. 38, no. 447. Japan: Koyusha Co., Ltd. July 1998.
  6. ^ JR車両のデータ・バンク 98/99 [JR rolling stock databank – 98/99]. Japan Railfan Magazine (in Japanese). Vol. 39, no. 459. Japan: Koyusha Co., Ltd. July 1999.
  7. ^ a b c JR車両のデータ・バンク 1999/2000 [JR rolling stock databank – 1999/2000]. Japan Railfan Magazine (in Japanese). Vol. 40, no. 471. Japan: Koyusha Co., Ltd. July 2000.
  8. ^ a b JR車両のデータ・バンク 2005/2006 [JR rolling stock databank – 2005/2006]. Japan Railfan Magazine (in Japanese). Vol. 46, no. 543. Japan: Koyusha Co., Ltd. July 2006.
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