731 series
{{Short description|Japanese train type}}
{{Expand Japanese|date=May 2022|topic=transport}}
{{Use dmy dates|date=January 2024}}
{{Infobox train
| name = 731 series
| image = 731 series G116 Otaru 20090830.jpg
| imagealt =
| imagesize = 300px
| caption = 731 series set G-116 in August 2009
| service =
| manufacturer = Kawasaki Heavy Industries, Hitachi
| factory =
| family =
| replaced = 711 series
| yearconstruction = 1996–2006
| yearservice = 24 December 1996
| refurbishment =
| yearscrapped =
| numberconstruction =
| numberbuilt = 63 vehicles (21 sets)
| numberservice = 63 vehicles (21 sets)
| numberpreserved =
| numberscrapped =
| formation = 3 cars per trainset
| fleetnumbers = G-101–121
| capacity =
| operator = {{ric|JR Hokkaido|name=y}}
| depots = Sapporo
| lines = Hakodate Main Line, Chitose Line
| carbody = Stainless steel
| trainlength =
| carlength = {{Plainlist|
- {{convert|21670|mm|ftin|abbr=on}} (end cars)
- {{convert|21300|mm|ftin|abbr=on}} (intermediate cars)
}}
| width = {{convert|2800|mm|ftin|abbr=on}}
| height = {{convert|3620|mm|ftin|abbr=on}}
| floorheight =
| doors = 3 per side
| maxspeed = {{convert|130|km/h|mph|abbr=on}}
| weight =
| acceleration =
| deceleration =
| traction =
| poweroutput =
| transmission =
| aux =
| powersupply =
| hvac =
| electricsystem = {{20 kV 50 Hz}} (overhead line)
| collectionmethod = Pantograph
| bogies =
| brakes =
| safety =
| coupling =
| multipleworking = 721 series, 733 series, 735 series, KiHa 201 series
| gauge = {{RailGauge|1067mm|lk=on}}
}}
The {{Nihongo|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.{{cite book | script-title=ja: JR全車輌ハンドブック2009 |trans-title= JR Rolling Stock Handbook 2009| publisher = Neko Publishing | year = 2009 | location = Japan | isbn = 978-4-7770-0836-0|title= Jēāru zensharyō handobukku: Rail Magazine 2009}}
Formation
{{As of|2016|10|01}}, 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.{{cite book |script-title=ja: JR電車編成表 2017冬 |trans-title= JR EMU Formations – Winter 2017 |publisher = Kotsu Shimbunsha |date = 16 November 2016 |location = Japan |language = ja |page = 7|isbn = 978-4-330-73716-4|title= Jr電車編成表 }}
| class="wikitable" | ||
| 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 |
Interior
Seating consists of longitudinal bench seating throughout, without the vestibule areas used on the earlier 721 series trains.
File:JR Hokkaido 731 series EMU 102.JPG|Interior view in February 2010
History
File:JR Hokkaido 201 series DMU 003.JPG
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.{{cite book |script-title=ja: JR電車編成表 2010夏 |trans-title= JR EMU Formations – Summer 2010| publisher = JRR | date = May 2010 | location = Japan | page = 2| isbn = 978-4-330-14310-1}}
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.{{Cite magazine |date=July 1997 |script-title=ja:JR車両のデータ・バンク 96/97 |trans-title=JR rolling stock databank – 96/97 |magazine=Japan Railfan Magazine |language=ja |location=Japan |publisher=Koyusha Co., Ltd. |volume=37 |issue=435 }}{{Cite magazine |date=July 1998 |script-title=ja:JR車両のデータ・バンク 97/98 |trans-title=JR rolling stock databank – 97/98 |magazine=Japan Railfan Magazine |language=ja |location=Japan |publisher=Koyusha Co., Ltd. |volume=38 |issue=447 }}{{Cite magazine |date=July 1999 |script-title=ja:JR車両のデータ・バンク 98/99 |trans-title=JR rolling stock databank – 98/99 |magazine=Japan Railfan Magazine |language=ja |location=Japan |publisher=Koyusha Co., Ltd. |volume=39 |issue=459 }}
| class="wikitable" | ||
| Set No. | Manufacturer | Delivery date |
|---|---|---|
| G-101 | rowspan="2" |Kawasaki Heavy Industries | 12 December 1996 |
| G-102 | 10 December 1996 | |
| G-103 | rowspan="2" | Hitachi | 13 December 1996 |
| G-104 | 14 December 1996 | |
| G-105
| rowspan="8" | Kawasaki Heavy Industries | 23 February 1998 | |
| G-106 | rowspan="2" | 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 | rowspan="2" | Hitachi | 18 December 1998 |
| G-114 | 19 December 1998 | |
| G-115 | rowspan="3" | Kawasaki Heavy Industries | rowspan="2" | 20 December 1999{{Cite magazine |date=July 2000 |script-title=ja:JR車両のデータ・バンク 1999/2000 |trans-title=JR rolling stock databank – 1999/2000 |magazine=Japan Railfan Magazine |language=ja |location=Japan |publisher=Koyusha Co., Ltd. |volume=40 |issue=471 }} |
| G-116 | ||
| G-117 | 21 December 1999 | |
| G-118 | rowspan="2" | Hitachi | rowspan="2" | 13 December 1999 |
| G-119 | ||
| G-120 | rowspan="2" | Kawasaki Heavy Industries | 6 March 2006{{Cite magazine |date=July 2006 |script-title=ja:JR車両のデータ・バンク 2005/2006 |trans-title=JR rolling stock databank – 2005/2006 |magazine=Japan Railfan Magazine |language=ja |location=Japan |publisher=Koyusha Co., Ltd. |volume=46 |issue=543 }} |
| G-121 | 5 March 2006 |
References
{{commons category}}
{{reflist}}
{{JR Hokkaido trainsets}}
Category:Electric multiple units of Japan
Category:Hokkaido Railway Company
Category:Train-related introductions in 1996
Category:20 kV AC multiple units