E231 series

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E231 series
300px
E231-1000 series suburban type train
In service 2000–Present
Manufacturer JR East, Kawasaki Heavy Industries, Tokyu Car Corporation
Built at Niitsu, Kobe, Yokohama
Replaced 103 series, 113 series, 115 series, 201 series, 205 series, 301 series
Constructed 1998–2011
Number built 2,736 vehicles
Number in service 2,632 vehicles
Number scrapped 104 vehicles (SaHa E230-500)
Formation 5/10/11 cars per trainset
Operator(s) JR East
Depot(s) Oyama, Matsudo, Tokyo, Kōzu, Mitaka
Line(s) served Tōkaidō Main Line, Yamanote Line, Chūō-Sōbu Line, Shōnan Shinjuku Line, Jōetsu Line, Ryōmō Line, Takasaki Line, Utsunomiya Line, Yokosuka Line, Gotemba Line, Tokyo Metro Tōzai Line
Specifications
Car body construction Stainless steel
Car length 20,000 mm (65 ft 7 in)[1]
Width 2,950 mm (9 ft 8 in)[1]
Doors 4 pairs per side
6 pairs per side (SaHa E230)
Maximum speed Lua error in Module:Convert at line 272: attempt to index local 'cat' (a nil value).[1]
Traction system IGBT-VVVF
(Mitsubishi/Hitachi)[citation needed]
Acceleration 2.5 km/h/s, 3.0 km/h/s or 3.3 km/h/s
Deceleration 4.0 km/h/s (4.5 km/h/s for emergency brake)
Train heating AU725
AU726
Electric system(s) 1,500 V DC overhead
Current collection method Overhead line
Bogies DT61(powered car), TR246(trailer car)
Braking system(s) Regenerative brake, electronically controlled pneumatic brakes
Safety system(s) ATS-P, ATS-SN, D-ATC
Coupling system Shibata-type
Multiple working E233-3000 series
Track gauge 1,067 mm (3 ft 6 in)

The E231 series (E231系?) is an electric multiple unit (EMU) train type used for commuter and outer-suburban services operated by East Japan Railway Company (JR East) in Japan since 2000.

Design

Trains were manufactured by Tokyu Car Corporation, Kawasaki Heavy Industries and also at JR East's factory at Niitsu in Niigata Prefecture.

Variants

The type evolved from the earlier 209 series and E217 series EMUs, with the main visible difference being wider bodies (2,950 mm compared to the 2,800 mm for earlier commuter trains), and the prototype train built in 1998 for trials on the Chūō-Sōbu Line was actually classified 209-950 series, later becoming E231-900 series. Full-production E231-0 series trains were subsequently introduced on the Chūō-Sōbu Line (10-car sets) and Jōban Line (10+5-car sets). Other variants include the 11-car E231-500 series for the Yamanote Line, and the E231-800 series with 2,800 mm wide bodies and end doors for use on Tokyo Metro Tōzai Line interrunning services.

From 2000 onward, the first E231-1000 series outer-suburban variant was delivered for use on Utsunomiya Line and Takasaki Line services north from Ueno Station in Tokyo. These trains included transverse seating in some cars and were also equipped with toilets. Production continued into 2006 with trains delivered for use on the Tōkaidō Main Line south from Tokyo. From 2004 onward, two bilevel Green cars were inserted into all E231-1000 series 10-car sets.

E231-0 series

46 10-car sets (Sets B1-42, B57, B80-82) based at Mitaka Depot for use on Chūō-Sōbu Line services, replacing the earlier 103 and 201 series fleet. Sets B1 to B42 were delivered between February 2000 and November 2001. Set B57 was delivered in November 2002. Sets 80 to 82 were delivered between October and November 2006. The first sets entered service on 13 March 2000. These sets each include one "six-door" SaHa E230 car (car 5).[2]

17 10-car sets (101 to 117) and 19 5-car sets (121 to 139) based at Matsudo Depot for use on Jōban Line services between Ueno and Toride, and also Narita Line services to Narita, replacing the earlier 103 series fleet. The fleet was delivered between November 2001 and February 2005, with the first trains entering service on 3 March 2002.[3]

Formations

10-car Chuo-Sobu Line sets

As of 1 April 2014, the fleet consists of 46 ten-car sets, based at Mitaka depot in Tokyo, and formed as shown below with four motored ("M") cars and six non-powered trailer ("T") cars, and car 1 at the Chiba (eastern end).[2]

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc T M M' T' T T M M' Tc'
Numbering KuHa E231 SaHa E231 MoHa E231 MoHa E230 SaHa E230 SaHa E231 SaHa E231 MoHa E231 MoHa E230 KuHa E230
  • Cars 2, 5, and 8 each have one PS33B single-arm pantograph.[2]
  • Car 5 has six pairs of doors per side.[2]
  • Cars 2 and 9 have a wheelchair space.[2]
  • Car 4 is designated as a mildy air-conditioned car.[2]

10-car Joban Line sets

As of 1 April 2014, the fleet consists of 17 ten-car sets, based at Matsudo depot in Chiba Prefecture, and formed as shown below with four motored ("M") cars and six non-powered trailer ("T") cars, and car 1 at the Ueno (southern end).[2]

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc' M' M T T T M' M T Tc
Numbering KuHa E230 MoHa E230 MoHa E231 SaHa E231 SaHa E231 SaHa E231 MoHa E230 MoHa E231 SaHa E231 KuHa E231
  • Cars 3 and 8 each have one PS33B single-arm pantograph.[2]
  • Cars 1 and 10 have a wheelchair space.[2]
  • Car 8 is designated as a mildy air-conditioned car.[2]

5-car Joban Line sets

As of 1 April 2014, the fleet consists of 19 five-car sets, based at Matsudo depot in Chiba Prefecture, and formed as shown below with two motored ("M") cars and three non-powered trailer ("T") cars, and car 11 at the Ueno (southern end).[2]

Car No. 11 12 13 14 15
Designation Tc' M' M T Tc
Numbering KuHa E230 MoHa E230 MoHa E231 SaHa E231 KuHa E231
  • Car 13 has one PS33B single-arm pantograph.[2]
  • Cars 11 and 15 have a wheelchair space.[2]
  • Car 14 is designated as a mildy air-conditioned car.[2]
  • JREast-E231-Mitsu11.jpg

    A Chūō-Sōbu Line 10-car E231-0 series set, April 2009

  • JREast-E231-Mato112.jpg

    A Jōban Line 10+5-car E231-0 series formation, July 2008

E231-500 series

Yamanote Line 11-car E231-500 series, March 2009

A fleet of 52 11-car E231-500 series was delivered from January 2002 to April 2005 for use on Yamanote Line services, replacing the earlier 205 series fleet. The first trains entered service on 21 April 2002. These trains include D-ATC digital automatic train control, and feature pairs of LCD passenger information screens above each door internally. These screens also show advertisements.

Each 11-car set originally contained two 6-door SaHa E230 trailer cars (cars 7 and 10)[3] with six pairs of doors per side and bench seats that were folded up until 10 a.m. on weekdays to provide standing room only during the morning peak. From 22 February 2010, the seats were able to be used during the morning peak.[4] The two 6-door cars in each set were subsequently replaced by a new build of 4-door trailer cars between February 2010 and August 2011, to standardize door spacing ahead of the introduction of platform doors on all Yamanote Line stations by 2017.[4] The new cars were built to E233 series standards, and the replacement cars (SaHa E231-4600) for car 10 have an irregular door spacing corresponding to the driving cars of Keihin-Tōhoku Line E233-1000 series sets, which occasionally have to share the same platforms during engineering work. This results in interior seating arranged 3-7-7-5-4, instead of the normal 3-7-7-7-3 arrangement.[5] The first batch of replacement 4-door SaHa E231-600 and SaHa E231-4600 cars were delivered from JR East's Niitsu factory on 1 February 2010.[6] Also, the E231-500 series trains will be retrofitted with Train Automatic Stopping Controller (TASC) by 2017 eventually allowing all trains to stop automatically at stations without the need to operate the brakes manually, as the (future) platform screen doors necessitate very accurate stopping positions. This will make the E231-500 series the first JR rolling stock to use TASC.[citation needed]

File:JR East E231 Chuo-Sobu Line A520 20141213.jpg
Chuo-Sobu Line 10-car E231-500 series set A520, December 2014

In October 2014, former Yamanote Line set 520 was released from overhaul as a 10-car set, numbered A520, allocated to Mitaka Depot, and finished in the yellow Chuo-Sobu Line livery.[7] It entered revenue service on the Chuo-Sobu Line from 1 December 2014.[8]

Formations

As of 1 April 2014, the fleet consists of 52 11-car sets, based at Tokyo General Rolling Stock Centre, and formed as shown below with six motored ("M") cars and five non-powered trailer ("T") cars, and car 1 at the clockwise end.[2]

Car No. 1 2 3 4 5 6 7 8 9 10 11
Designation Tc' M' M T M' M T M' M T Tc
Numbering KuHa E230 MoHa E230 MoHa E231 SaHa E231 MoHa E230 MoHa E231 SaHa E231 MoHa E230 MoHa E231 SaHa E231 KuHa E231
  • Cars 3, 6, and 9 each have one PS33B single-arm pantograph.[2]
  • Cars 1 and 11 have a wheelchair space.[2]
  • Car 8 is designated as a mildly air-conditioned car.[2]
  • Yamanote SaHa E230-501 Ikebukuro 20100603.JPG

    SaHa E230-500 6-door car as car No. 10, June 2010

  • Yamanote SaHa E231-4645 Ikebukuro 20100603.JPG

    Replacement SaHa E231-4600 4-door car as car No. 10, June 2010

  • JReast SahaE231-651.jpg

    Replacement SaHa E231-600 4-door car as car No. 7, March 2010

Interior

  • JR East E231 series EMU 501.JPG

    Interior view of SaHa E231-500 car

  • Interior view of SaHa E230-500 car with seats folded up for the rush hour

  • JReast SahaE231-4649-inside.jpg

    Interior view of SaHa E231-4600 car, showing E233 series derived interior, April 2010

  • JR East information display 001.JPG

    Passenger information screen

Special liveries

From 7 September to 4 December 2009, E231-500 series set 502 carried an all-over brown livery to mark the 100th anniversary of the naming of Yamanote Line in collaboration with the Meiji Seika confectionery company.

From 16 January to 28 December 2013, Yamanote Line E231-500 series set 545 operated in an all-over uguisu light green livery to mark the 50th anniversary of the first appearance of 103 series EMUs in this colour scheme.[9]

From 11 October 2014 to 31 March 2015, Yamanote Line E231-500 series set 514 operated in an all-over "red brick" livery to commemorate the 100th anniversary of the opening of Tokyo Station, which opened in 1914.[10]

  • JRE-KuhaE230-502.jpg

    Set 502 in all-over brown livery, October 2009

  • JR East E231 Yamanote Line 50th 9330G 20130119.jpg

    Set 545 in all-over light green livery, January 2013

  • East Japan Railway Company E231-500 Series Tou 514 set.jpg

    Set 514 in "red brick" livery, October 2014

E231-800 series

File:SeriesE231-800.jpg
10-car E231-800 series, December 2009

Seven 10-car sets (K1 to K7) based at Mitaka Depot for use on Chūō-Sōbu Line and Tokyo Metro Tōzai Line interrunning services. These sets were delivered between January and May 2003, entering service on 1 May 2003.[3][11]

Formations

As of 1 April 2014, the fleet consists of seven ten-car sets (K1 to K7), based at Mitaka depot in Tokyo, and formed as shown below with six motored ("M") cars and four non-powered trailer ("T") cars, and car 1 at the Tsudanuma (eastern end).[2]

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc M M' T M M' T M M' Tc'
Numbering KuHa E231-800 MoHa E231-800 MoHa E230-800 SaHa E231-800 MoHa E231-800 MoHa E230-800 SaHa E231-800 MoHa E231-800 MoHa E230-800 KuHa E230-800
  • Cars 2, 5, and 8 each have one PS33B single-arm pantograph.[2]
  • Cars 2 and 9 have a wheelchair space.[2]
  • Car 4 is designated as a mildy air-conditioned car.[2]

E231-900 series

File:JR East E231-900.jpg
E231-900 series on Chūō-Sōbu Line, October 2007

One 10-car set based at Mitaka Depot for use on Chūō-Sōbu Line services.

This was the prototype E231 series set, built jointly by Tokyu Car and JR East's Niitsu factory, and delivered in October 1998, classified as 209-950 series. It was reclassified as E231-900 series in June 2000.[2]

Formations

The single 10-car set (B901) is based at Mitaka depot in Tokyo, and formed as shown below with four motored ("M") cars and six non-powered trailer ("T") cars, and car 1 at the Chiba (eastern end).[2]

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc T M M' T' T T M M' Tc'
Numbering KuHa E231-900 SaHa E231-900 MoHa E231-900 MoHa E230-900 SaHa E230-900 SaHa E231-900 SaHa E231-900 MoHa E231-900 MoHa E230-900 KuHa E230-900
  • Cars 2, 5, and 8 each have one PS33B single-arm pantograph.[2]
  • Car 5 has six pairs of doors per side.[2]
  • Cars 2 and 9 have a wheelchair space.[2]
  • Car 4 is designated as a mildy air-conditioned car.[2]

E231-1000 series

File:JR EAST E231-1000 U541.jpg
E231-1000 series suburban set on a Takasaki Line service, December 2008
File:JREast Saro E231-1045.jpg
SaRo E231-1000 bilevel Green car in a Tōkaidō Main Line set, April 2007

10- and 5-car suburban sets based at Oyama and Kōzu depots for use on the following lines.

JR East

JR Central

These trains are designed for longer-distance suburban services, and include toilets, transverse seating bays (in some cars only), and bilevel Green cars (10-car sets only). The Ito Line, Joetsu Line, and Gotemba Line mainly use 5-car sets, while the Shōnan-Shinjuku Line, Takasaki Line, Tōkaidō Line, Utsunomiya Line, and Yokosuka Line use 10- or 15- (10 + 5) car sets.

Formations

The E231-1000 series sets are formed as shown below with car 1 (11) at the Atami end and car 10 (15) at the Tokyo/Maebashi end.[12]

10-car U sets

Oyama-based sets U501–541, U584–591

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc' M' M Tsd' Tsd T M' M T Tc
Numbering KuHa E230-8000 MoHa E230-3500 MoHa E231-1500 SaRo E230-1000 SaRo E231-1000 SaHa E231-6000 MoHa E230-1000 MoHa E231-1000 SaHa E231-1000 KuHa E231-6000

Cars 3 and 8 have one single-arm pantograph each. Cars 1, 5, and 6 have toilets (universal access in car 1).[12]

5-car U sets

Oyama-based sets U2–118

Car No. 11 12 13 14 15
Designation Tc' M' M T Tc
Numbering KuHa E230-6000 MoHa E230-1000 MoHa E231-1000 SaHa E231-3000 KuHa E231-8000

Car 13 has one single-arm pantograph. Car 11 has a toilet (universal access).[12]

10-car K sets

Kōzu-based sets K1–42

Car No. 1 2 3 4 5 6 7 8 9 10
Designation Tc' M' M Tsd' Tsd T T M' M Tc
Numbering KuHa E230-8000 MoHa E230-3500 MoHa E231-1500 SaRo E230-1000 SaRo E231-1000 SaHa E231-1000 SaHa E231-1000 MoHa E230-1500 MoHa E231-3500 KuHa E231-8500

Cars 3 and 9 have one single-arm pantograph each. Cars 1, 5, and 10 have toilets (universal access in cars 1 and 10).[12]

5-car S sets

Kōzu-based sets S1–34

Car No. 11 12 13 14 15
Designation Tc' M' M T Tc
Numbering KuHa E230-6000 MoHa E230-1000 MoHa E231-1000 SaHa E231-3000 KuHa E231-8000

Car 13 has one single-arm pantograph. Car 11 has a toilet (universal access).[12]

Interior

  • JR-E231-inside.jpg

    Interior of car with longitudinal seating

  • JR-E231-inside-2.jpg

    Interior of car with transverse seating bays

  • JR East E231 series EMU 1002.JPG

    Toilet

  • JR East E231 series EMU 1001.JPG

    Driver's cab end

  • E231kei green syanai NO3.JPG

    Bilevel Green Car lower deck with 2+2 seating

  • E231kei green syanai NO2.JPG

    Bilevel Green Car upper deck with 2+2 seating

See also

References

  1. ↑ 1.0 1.1 1.2 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 2.19 2.20 2.21 2.22 2.23 2.24 2.25 2.26 2.27 Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ 3.0 3.1 3.2 Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ "山手線用E231系4ドア車配給輸送" (1 February 2010). Retrieved 1 February 2010. (Japanese)
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  11. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  12. ↑ 12.0 12.1 12.2 12.3 12.4 Lua error in package.lua at line 80: module 'strict' not found.

Further reading

  • Lua error in package.lua at line 80: module 'strict' not found.

External links

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