731 series - Misplaced Pages

Japanese train type

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731 series
731 series set G-116 in August 2009
Manufacturer	Kawasaki Heavy Industries, Hitachi
Replaced	711 series
Constructed	1996–2006
Entered service	24 December 1996
Number built	63 vehicles (21 sets)
Number in service	63 vehicles (21 sets)
Formation	3 cars per trainset
Fleet numbers	G-101–121
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	2,800 mm (9 ft 2 in)
Height	3,620 mm (11 ft 11 in)
Doors	3 per side
Maximum speed	130 km/h (81 mph)
Electric system(s)	20 kV 50 Hz AC (overhead line)
Current collector(s)	Pantograph
Multiple working	721 series, 733 series, 735 series, KiHa 201 series
Track gauge	1,067 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.

Formation

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.

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.

Interior

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

Interior view in February 2010

History

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.

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.

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

Fleet history

The individual build histories of the fleet are as follows.

Set No.	Manufacturer	Delivery date
G-101	Kawasaki Heavy Industries	12 December 1996
G-102	Kawasaki Heavy Industries	10 December 1996
G-103	Hitachi	13 December 1996
G-104	Hitachi	14 December 1996
G-105	Kawasaki Heavy Industries	23 February 1998
G-106		24 February 1998
G-107		24 February 1998
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	Hitachi	19 December 1998
G-115	Kawasaki Heavy Industries	20 December 1999
G-116		20 December 1999
G-117		21 December 1999
G-118	Hitachi	13 December 1999
G-119	Hitachi	13 December 1999
G-120	Kawasaki Heavy Industries	6 March 2006
G-121	Kawasaki Heavy Industries	5 March 2006

References

^ 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.
^ 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.
^ 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.
^ 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.
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.
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.
^ 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.
^ 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.