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E331 series

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E331 series
E331 series set AK1 in service on the Keiyo Line in May 2010
In serviceMarch 2007–2011
ManufacturerKawasaki Heavy Industries, Tokyu Car Corporation
Constructed2006
Scrapped2014
Number built14 cars (1 set)
Number scrapped14 vehicles
Formation14 cars per trainset
Fleet numbersAK1
OperatorsJR East
DepotsKeiyo (Shin-Narashino)
Lines servedKeiyo Line
Specifications
Car body constructionStainless steel[1]
Car length13,400 mm (44 ft 0 in) (cars 2-6, 9-13)
16,500 mm (54 ft 2 in) (cars 1, 7, 8, 14)[2]
Width2,989 mm (9 ft 9.7 in)
Doors3 pairs per side
Maximum speed120 km/h (75 mph)*
Electric system(s)1,500 V DC overhead catenary
BogiesDT73/TR257/TR258
Safety system(s)ATS-P, ATS-SN
Track gauge1,067 mm (3 ft 6 in)

The E331 series (E331系) was an electric multiple unit (EMU) train introduced experimentally from 2007 on commuter services on the Keiyo Line in Japan operated by East Japan Railway Company (JR East). Only one trainset was built, and it differed significantly from other JR commuter EMUs in having articulated cars with shared bogies and using direct-drive motors.[2]

Bogies

The 14-car set was mounted on a total of 16 bogies: four TR257 trailer bogies (cars 1, 7, 8, 14), six TR258 shared trailer bogies, and six DT73 shared motor bogies.[3]

  • TR257 trailer bogie
    TR257 trailer bogie
  • TR258 shared trailer bogie
    TR258 shared trailer bogie
  • DT73 shared motor bogie
    DT73 shared motor bogie

Formation

The lone set, AK1, consisted of two 7-car half-sets, and is formed as follows, with car 1 at the Tokyo end.[1][3]

Car No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Designation Tc' M T2 M T M T4 T3 M T2 M T M Tc
Numbering KuHa E330-1 MoHa E331-6 SaHa E331-502 MoHa E331-5 SaHa E331-2 MoHa E331-4 SaHa E331-1001 SaHa E330-1 MoHa E331-3 SaHa E331-501 MoHa E331-2 SaHa E331-1 MoHa E331-1 KuHa E331-1
Weight (t) 25.11 16.1 16.7 16.1 16.5 16.1 20.2 21.5 16.1 16.7 16.1 16.5 16.1 24.11
Capacity (total/seated) 115/34 107/34 107/34 107/34 107/34 107/34 133/46 133/46 107/34 107/34 107/34 107/34 107/34 115/34
SaHa E330-1 (car 8) in November 2006
  • Cars 3 and 10 (SaHa E331-502 and SaHa E331-501) were each fitted with one PS37 single-arm pantograph.[1]
  • Cars 1 and 14 seated 36 when the seats are configured in transverse mode.[3]

Interior

Cars 2 to 13 had longitudinal seating, while the end cars 1 and 14 had transverse seating bays which could be rotated and rearranged longitudinally against the train sides to provide increased standing space during peak hours.[4]

  • General interior view
    General interior view
  • 5-person bench seat
    5-person bench seat
  • Transverse seating bay in car 1
    Transverse seating bay in car 1
  • LCD passenger information display
    LCD passenger information display

History

Incorporating new technology tested on the earlier experimental E993 series "AC Train", the E331 series was delivered to JR East in March 2006. Cars 1 to 7 were built by Tokyu Car Corporation in Yokohama, and cars 8 to 14 were built by Kawasaki Heavy Industries in Kobe.[1]

Following extensive test running, the set entered revenue service on the Keiyo Line between Tokyo and Soga from the start of the revised timetable on 18 March 2007, used only on weekend services.[5] From April, the set was taken out of service, and in October 2007, the seven Kawasaki-built cars were returned to their manufacturer for modifications, and in March 2008, the seven Tokyu Car cars were also returned to Tokyu Car for modifications.[5] The set was returned to service on 23 December 2008.[6]

The set was removed from revenue service in May 2009, returning to service on 3 April 2010.[7] It was subsequently removed from service again, and remained stored out of service at Shin-Narashino Depot from early 2011 before finally being hauled to Nagano Works in March 2014 for scrapping.[8]

  • Cars 1 to 7 on delivery from Tokyu Car's Yokohama factory, March 2006
    Cars 1 to 7 on delivery from Tokyu Car's Yokohama factory, March 2006
  • The E331 series set in service on the Keiyo Line, June 2010
    The E331 series set in service on the Keiyo Line, June 2010
  • A sticker on the Keiyo Line platform at Tokyo Station marking the door position for E331 series trains, April 2008
    A sticker on the Keiyo Line platform at Tokyo Station marking the door position for E331 series trains, April 2008
  • The E331 series set being hauled to JR East's Nagano Works in March 2014
    The E331 series set being hauled to JR East's Nagano Works in March 2014

See also

References

  1. ^ a b c d JR電車編成表 '07冬号. Japan: JRR. December 2006. p. 54. ISBN 4-88283-046-9. {{cite book}}: Unknown parameter |trans_title= ignored (|trans-title= suggested) (help)
  2. ^ a b JR全車輌ハンドブック2009. Japan: Neko Publishing. 2009. pp. 389–390. ISBN 978-4-7770-0836-0. {{cite book}}: Unknown parameter |trans_title= ignored (|trans-title= suggested) (help)
  3. ^ a b c "E331系一般形直流電車". Japan Railfan Magazine (in Japanese). Vol. 46, no. 542. Japan: Koyusha Co., Ltd. June 2006. pp. 84–87. {{cite magazine}}: Unknown parameter |trans_title= ignored (|trans-title= suggested) (help)
  4. ^ "JR東日本　E331系一般型直流電車（量産先行者/京葉線）". Tetsudō Daiya Jōhō Magazine (in Japanese). Vol. 35, no. 266. Japan: Kōtsū Shimbun. June 2006. pp. 74–75. {{cite magazine}}: Unknown parameter |trans_title= ignored (|trans-title= suggested) (help)
  5. ^ a b 首都圏新系列車両PROFILE. Japan: Ikaros Publishing. 15 April 2011. pp. 98–99. ISBN 978-4-86320-436-2. {{cite book}}: Unknown parameter |trans_title= ignored (|trans-title= suggested) (help)
  6. ^ Ｅ３３１系の運転再開について (PDF). News release (in Japanese). Chiba, Japan: East Japan Railway Company - Chiba Branch. 19 December 2008. Archived from the original (pdf) on 19 February 2012. Retrieved 11 October 2011. {{cite web}}: Unknown parameter |trans_title= ignored (|trans-title= suggested) (help)
  7. ^ "E331系ケヨAK1編成が営業運転に". Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 5 April 2010. Retrieved 11 October 2011. {{cite news}}: Unknown parameter |trans_title= ignored (|trans-title= suggested) (help)
  8. ^ "E331系AK1編成長野へ配給". RM News (in Japanese). Japan: Neko Publishing Co., Ltd. 27 March 2014. Archived from the original on 27 March 2014. Retrieved 10 April 2014. {{cite web}}: Unknown parameter |trans_title= ignored (|trans-title= suggested) (help)

Further reading

  • 首都圏新系列車両PROFILE (in Japanese). Japan: Ikaros Publishing. 15 April 2011. ISBN 978-4-86320-436-2. {{cite book}}: Unknown parameter |trans_title= ignored (|trans-title= suggested) (help)
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