207 series (JR East)

This article is about the train type operated by JR East. For the train type operated by JR West, see 207 series (JR West).

The 207 series (207系) or 207–900 series (207系900番台) was a commuter electric multiple unit (EMU) train type introduced in 1986 by Japanese National Railways (JNR) and operated by East Japan Railway Company (JR East) on through services between the Joban Line and Tokyo Metro Chiyoda Line.^[2] Only one 10-car set was built, which was withdrawn in December 2009.

207 series
The 207 series set at Matsudo Station in May 2006
In service	November 1986 – December 2009
Manufacturer	Kawasaki Heavy Industries, Tokyu Car Corporation
Constructed	1986
Scrapped	January 2010
Number built	10 vehicles (1 set)
Number in service	None
Number preserved	None
Number scrapped	10 vehicles
Successor	E233-2000 series
Formation	10 cars per trainset
Fleet numbers	71
Operators	JNR (1986–1987) JR East (1987–2009)
Depots	Matsudo
Lines served	Joban Line, Tokyo Metro Chiyoda Line
Specifications
Car body construction	Stainless steel
Car length	19,500 mm (64 ft 0 in)
Width	2,800 mm (9 ft 2 in)
Height	4,140 mm (13 ft 7 in)
Doors	4 pairs per side
Maximum speed	80 km/h (50 mph) (Chiyoda Line) 90 km/h (56 mph) (Jōban Line) 100 km/h (62 mph) (Design)
Weight	299.9 t
Traction system	GTO-VVVF
Traction motors	MT63
Power output	3,600 kW
Acceleration	3.3 km/(h⋅s) (2.1 mph/s)
Deceleration	5.0 km/(h⋅s) (3.1 mph/s) (emergency)
Electric system(s)	1,500 V DC overhead catenary
Current collector(s)	PS21 lozenge-type pantograph[1]
Bogies	DT50E (motored) TR235F (trailer)
Safety system(s)	ATS-SN, New CS-ATC
Track gauge	1,067 mm (3 ft 6 in)

Design

Based on the earlier 205 series design, the 207-900 series was a prototype built as the first VVVF-controlled EMU operated by JNR.^[2] The 207 series built later by JR West bears no relation to this train.^[3]

The train used adjustable voltage/adjustable frequency (AVAF) inverters and induction motors using gate turn-off thyristor (GTO) components.^[4]

Formation

The sole 10-car set, numbered "71", was formed as follows, with car 1 at the Yoyogi-Uehara end and car 10 at the Toride end.^[1]

Car No.	1	2	3	4	5	6	7	8	9	10
Designation	T'c	M2	M1	T2	M2	M1	T1	M2	M1	Tc
Numbering	KuHa 206-901	MoHa 206-903	MoHa 207-903	SaHa 207–902	MoHa 206–902	MoHa 207–902	Saha 207–901	MoHa 206–901	MoHa 207–901	KuHa 207–901

Cars 3, 6, and 9 were each fitted with one PS21 lozenge-type pantograph.^[1]

Interior

• 
  Interior of a 207-900 series car in September 2007

History

The train was delivered to Matsudo Depot in November 1986.^[3]

It was withdrawn from service in 2009 following the introduction of new E233-2000 series EMUs, and a final "Sayonara" service was run on 5 December 2009.^[5] The train was transferred to Nagano on 5 January 2010 for scrapping.^[6]