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Tobu 20000 series

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Tobu 20000/20050/20070/20400 series
20000 series set 21807 in June 2008
ManufacturerAlna Kōki, Tokyu Car Corporation
Built atAmagasaki, Yokohama
Replaced2000 series
Constructed1988–1997
Entered service25 March 1988
Refurbished2018–
Scrapped2017–
Number built192 vehicles (24 sets)
Number in service192 vehicles (24 sets) (as of 1 April 2017)
Formation8 cars per trainset
OperatorsTobu Railway
DepotsKasukabe
Lines servedTobu Skytree Line, Tobu Nikko Line, Tokyo Metro Hibiya Line, Tobu Utsunomiya Line
Specifications
Car body constructionStainless steel
Car length18,000 mm (59 ft 1 in)
Width2,857 mm (9 ft 4.5 in)
Doors3/5 pairs per side
Maximum speed100 km/h (60 mph)[1]
110 km/h (70 mph) (20400 series)[2]
Acceleration3.3 km/h/s
Deceleration3.7 km/h/s (service), 4.5 km/h/s (emergency)
Electric system(s)1,500 V DC overhead line
Current collector(s)20000 series: scissors type pantograph[3]
20070 series: single-arm pantograph[3]
20400 series: single-arm pantograph[2]
Safety system(s)Tobu ATS
Track gauge1,067 mm (3 ft 6 in)

The Tobu 20000 series (東武20000系, Tōbu 20000-kei) is a DC electric multiple unit (EMU) commuter train type operated by the private railway operator Tobu Railway in Japan since 1988.[4]

The 20000 series fleet is scheduled to be replaced by new Tobu 70000 series EMUs with 20 m cars.

Variants

  • 20000 series: 13 x 8-car sets introduced from March 1988
  • 20050 series: 8 x 8-car sets introduced from December 1992 with 5-door cars
  • 20070 series: 3 x 8-car sets introduced from March 1997
  • 20400 series: 4-car sets introduced from 2018 for the Tobu Utsunomiya Line

20000 series

Thirteen eight-car sets (21801 to 21813) were built to replace the ageing 2000 series trains on inter-running services between the Tobu Skytree Line and the Tokyo Metro Hibiya Line in Tokyo, entering service on 25 March 1988. The body design uses a new lightweight corrugated stainless steel construction.[4] These trains use the same AFE (Automatic Field Excite) chopper control as the earlier Tobu 9000 series trains, bolsterless bogies.[5]

Total number of vehicles built: 104[4]

Formation

Trains are formed as follows, with six motored ("M") cars and two non-powered driving trailer ("Tc") cars.[3]

Designation Tc1 M1 M2 M1 M3 M1 M4 Tc2
Numbering 21800 22800 23800 24800 25800 26800 27800 28800

The M1 cars are each fitted with one scissors type pantograph.[3]

20050 series

20050 series set 21853 in September 2017

Eight eight-car sets (21851 to 21858) were introduced on 29 December 1992 on Tobu Isesaki Line (present-day Tobu Skytree Line) and Tokyo Metro Hibiya Line inter-running services. These sets feature two five-door cars at each end, and also LED destination indicators.[4] These sets have VVVF control.[1]

Total number of vehicles built: 64[4]

Formation

Trains are formed as follows, with six motored ("M") cars and two non-powered driving trailer ("Tc") cars.[3]

Designation Tc3 M5 M2 M7 M3 M7 M6 Tc4
Numbering 21850 22850 23850 24850 25850 26850 27850 28850

The M5 and M7 cars are each fitted with one scissors type pantograph.[3]

Interior

Passenger accommodation consists of longitudinal bench seating throughout, with seats for three persons between each pair of doors in the five-door cars.[5] Seat width is 440 mm (17 in) per person for the three-person bench seats in five-door cars and 450 mm (18 in) per person for the ten-person bench seats in three-door cars.[5] As with the 9050 series EMUs introduced around the same time, these sets featured LCD passenger information screens above the doorways, but these were subsequently removed.[5]

20070 series

20070 series set 21872 in April 2008

Three eight-car sets (21871 to 21873) were introduced from 25 March 1997 to cope with an increased service frequency. These sets feature three-door cars throughout, and also LED destination indicators.[4] These sets have VVVF control.[1]

Total number of vehicles built: 24[4]

Formation

Trains are formed as follows, with six motored ("M") cars and two non-powered driving trailer ("Tc") cars.[3]

Designation Tc1 M1 M2 M3 M4 M3 M5 Tc2
Numbering 21870 22870 23870 24870 25870 26870 27870 28870

The M1 and M3 cars are each fitted with one single-arm pantograph.[3]

Interior

Passenger accommodation consists of longitudinal bench seating throughout. These sets feature three-colour LCD passenger information displays above alternate doorways.[5]

20400 series

A 20400 series set in June 2019

The 20400 series are four-car sets for Tobu Nikko Line and Utsunomiya Line operation north of Minami-Kurihashi Station.[2] The first trains entered revenue service on 3 September 2018.[6]

Formation

Trains are formed as follows, with two motored cars and two non-powered trailer cars.[2] Car 1 ("Tc2") and 4 ("Tc1") are former 20000 series cars built by Alna Koki in 1988, and cars 2 ("M2") and 3 ("M1") are former 20070 series cars built by Tokyu Car in 1997.[2] Some sets will incorporate former 20050 series cars, which will be converted from five doors to three doors per side.[2]

Designation Tc2 M2 M1 Tc1
Numbering 24422 23422 22422 21422

The M1 car is fitted with two single-arm pantographs.[2]

Interior

Passenger accommodation consists of longitudinal bench seating throughout. The interior is based on the 70000 series design.[2]

Withdrawal and refurbishment

The 20000 series trains began to be replaced by new 70000 series trains from 7 July 2017.[7] The first set to be withdrawn, set (21813 and 21809), was removed for scrapping in July 2017.[8] Some of the 20000 series trains are also refurbished as 20400 series to replace 8000 series trains.[6]

The five-door 20000 series trains are being withdrawn so that platform doors can be installed on Tokyo Metro Hibiya Line stations.

References

  1. ^ a b c 私鉄車両年鑑2015 [Japan Private Railways Annual 2015] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. 20 June 2015. p. 148. ISBN 978-4-8022-0003-5.
  2. ^ a b c d e f g h Kamishin, Daisuke (19 July 2018). 東武鉄道20400型を公開、日光線・宇都宮線で9月デビュー! 写真83枚 [Tobu Railway 20400 series released, September debut on Nikko Line · Utsunomiya Line! 83 photos]. news.mynavi.jp (in Japanese). Mynavi Corporation. Archived from the original on 10 February 2019. Retrieved 10 February 2019.
  3. ^ a b c d e f g h 私鉄車両編成表 私鉄車両編成表 2010 [Private Railway Rolling Stock Formations - 2010]. Japan: JRR. August 2010. p. 36. ISBN 978-4-330-15310-0.
  4. ^ a b c d e f g ２００６東武鉄道通勤車両カタログ [2006 Tobu Railway Commuter Rolling Stock Catalogue]. Tetsudo Daiya Joho Magazine. Vol. 35, no. 263. Japan: Kotsu Shimbun. March 2006. pp. 16–20.
  5. ^ a b c d e 東武鉄道の世界 [The World of Tobu Railway] (in Japanese). Japan: Kotsu Shimbunsha. 8 April 2015. p. 41–43. ISBN 978-4-330-54215-7.
  6. ^ a b Saito, Takahisa (4 September 2018). 東武20400形が営業運転を開始 [Tobu 20400 series starts commercial operation]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. Archived from the original on 10 February 2019. Retrieved 10 February 2019.
  7. ^ "新型車両70000系運行開始【ＨＰ用確定版】" (PDF). 22 June 2017. Archived from the original (PDF) on 7 October 2017.
  8. ^ "東武鉄道20000系が渡瀬へ" [Tobu Railway 20000 series to Watase]. Japan Railfan Magazine Online. Koyusha Co., Ltd. 29 July 2017. Archived from the original on 10 February 2019.
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