311 series

Japanese train type

20,100 mm (65 ft 11 in) (end cars)
20,000 mm (65 ft 7 in) (intermediate cars)^[2]

Width2,966 mm (9 ft 8.8 in)Doors3 pairs per sideMaximum speed120 km/h (75 mph)^[2]Traction systemResistor control + field system superimposed field excitation controlTraction motorsC-MT61APower output960kW (2M2T set configuration)TransmissionGear ratio: 16:83 (1:5.19)Electric system(s)1,500 V DC overheadCurrent collector(s)C-PS27A single-arm pantographBraking system(s)Regenerative brake, electronically controlled pneumatic brakesSafety system(s)ATS-ST, ATS-PTCoupling systemShibata TypeMultiple working211/313 seriesTrack gauge1,067 mm (3 ft 6 in)

The 311 series (311系) is a DC suburban electric multiple unit (EMU) train type operated by Central Japan Railway Company (JR Central) in Japan.^[2] First introduced in July 1989, a total of 15 four-car sets were built between 1989 and 1991 by Hitachi, Kawasaki Heavy Industries, and Kinki Sharyo to replace older 113 and 115 series EMUs. The design of the 311 series was developed from that of the 211 series.

Design

Built jointly by Hitachi, Kawasaki Heavy Industries, and Kinki Sharyo,^[3] the design was developed from the earlier 211 series, with the first five trains introduced from July 1989 to replace older 113 and 115 series EMUs. Eight more sets were introduced from the start of the new timetable in March 1990, and a further two sets were introduced in March 1991.^[4]

Formation

As of 1 October 2015^[update], the fleet consists of 15 four-car sets (G1 to G15), all based at Ogaki Depot. The trainsets are formed as shown below with two motored cars and two non-powered trailer cars.^[5]

Designation	Mc	M'	T	Tc'
Numbering	KuMoHa 311	MoHa 311	SaHa 311	KuHa 310

The KuMoHa car is fitted with a single-arm pantograph.^[5] Between June 2006 and July 2008, all sets had their original lozenge pantographs replaced with single-arm pantographs.^[5]

Interior

Interior view
Priority seating
Wheelchair and stroller space
Toilet
Digital clock and LED passenger information screen
Door view

Withdrawal

Withdrawals of the 311 series commenced on 18 May 2022, starting with sets G8 and G12.^[6]

References

^ "JR東海315系の投入スケジュール。初年度は8両編成を7編成" [JR Tokaido 315 series launch schedule. In the first year, there will be 7 8-car trains.]. tabiris.com (in Japanese). 31 January 2021. Retrieved 16 May 2024.
^ ^a ^b ^c JR全車輌ハンドブック2006 [JR Rolling Stock Handbook 2006]. Japan: Neko Publishing. 2006. ISBN 978-4-7770-0453-9.
^ Saka, Masahiro (March 2014). JR第1世代の車両・現況と概要 [JR 1st-generation rolling stock: Current situation and overview]. Tetsudō Daiya Jōhō Magazine (in Japanese). 43 (359): 23.
^ 311系・313系製作の背景と現在までの経緯 [311 & 313 series: Background and developments to present day]. Tetsudō Daiya Jōhō. 38 (304): 12–25. August 2009.
^ ^a ^b ^c JR電車編成表 2016冬 [JR EMU Formations - Winter 2016] (in Japanese). Japan: Kotsu Shimbunsha. 18 November 2015. p. 126. ISBN 978-4-330-62315-3.
^ "311系8両が西浜松へ" [Eight 311 series cars forwarded to Nishi-Hamamatsu]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 19 May 2022. Retrieved 16 May 2024.