Keio 8000 series

The Keio 8000 series (京王8000系) is an electric multiple unit (EMU) train type operated by the private railway operator Keio Corporation on commuter services in the Tokyo area of Japan since 1992.

Keio 8000 series
8000 series 10-car set 8706 in May 2017
In service	1992 – Present
Manufacturer	Nippon Sharyo, Tokyu Car Corporation
Constructed	1992 - 1999, 2009
Number built	245 vehicles
Number in service	244 vehicles
Number scrapped	1 vehicle (accident damage)
Formation	4/6/8/10 cars per trainset
Operator(s)	Keio Corporation
Specifications
Car body construction	Stainless steel
Car length	20 m (65 ft 7 in)
Doors	4 pairs per side
Maximum speed	110 km/h (68 mph)
Transmission	GTO-VVVF (Hitachi) SiC-VVVF (Hitachi)
Acceleration	2.5 km/h/s
Deceleration	4.0 km/h/s (4.5 km/h/s for emergency brake)
Electric system(s)	1,500 V DC
Current collection method	Overhead
Track gauge	1,372 mm (4 ft 6 in) Scotch Gauge

Technical details

Driver's cab

• MT ratio
  • 0 subseries:
    • six-car set: 4M2T (4 motor cars and 2 trailers, motor cars have 4 motors)
    • four-car set: 2M2T
  • 20 subseries: eight-car set: 4M4T
• Motor output: 150 kilowatts (200 hp)
• Gear ratio: 6.07
• Drive mechanism: Parallel cardan
• Control system: GTO-VVVF
• Headlights: Sealed beam
• Destination indicators: roller-blind or 3-color LED
• Passenger information displays: 3-color LED (4 per car)
• Seating arrangement (intermediate cars): 4-7-7-7-4 on longitudinal bench seats

Body

The body is stainless steel. The front is steel.

Driver's cab

"T" shape one handle master-controller system. Digital speedometer. TNS (Train Navigation System).

• Acceleration: 4 notch
• Deceleration: 7 notch + emergency

Formations

As of 1 April 2015, the fleet consists of 14 ten-car sets and 13 eight-car sets (244 vehicles in total), formed as follows.[1]

• c=Driver's cab; T=trailer, M=motor

0-subseries ten-car sets

← Shinjuku 　　　　　　　　　　　　　　　　　　　　　 Keio-Hachiōji →
Tc	M	M	M	M	T		T	M	M	Tc
8701	8001	8051	8101	8151	8751	+	8801	8201	8251	8851
|	|	|	|	|	|		|	|	|	|
8713	8013	8063	8113	8163	8763	+	8813	8213	8263	8863
8714	8014	8064	8114	8164	8514		8564	8214	8264	8864

20-subseries eight-car sets

← Shinjuku 　　　　　　　　　　　　　　 Keio-Hachiōji →
Tc	M	M	T	T	M	M	Tc
8721	8021	8071	8521	8571	8121	8171	8771
|	|	|	|	|	|	|	|
8733	8033	8083	8533	8583	8133	8183	8783

Interior

• 
  Interior of car in original condition
• 
  Priority seats of car in original condition
• 
  Interior of a refurbished car
• 
  Priority seats of a refurbished car

History

The first 8000 series trains were introduced in 1992.[2]

Six-car and four-cars sets (and occasionally a pair of four-car sets) used to be operated on splitting services which separated and re-joined at Takahatafudō Station until 2006. Now, all six-car and four-car 0-subseries sets are permanently formed as 10-car trains.[2]

The 8000 series trains are used exclusively on Keio Corporation lines. Unlike some other Keio trains, they do not continue past Shinjuku on to the Toei Shinjuku Line.

Special liveries

Set 8713 received a special all-over green livery in September 2009 evoking the livery carried by the former 2000 series trains.[3]

• 
  Set 8713 in special all-over green livery in August 2016

References

1. 私鉄車両編成表 私鉄車両編成表 2015 [Private Railway Rolling Stock Formations - 2015] (in Japanese). Japan: Kotsu Shimbunsha. 23 July 2015. ISBN 978-4-330-58415-7.
2. 私鉄車両年鑑 2013: 大手15社営業用車両完全網羅 私鉄車両年鑑2013 [Japan Private Railways Annual 2013] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. 20 March 2013. p. 153. ISBN 978-4-86320-693-9.
3. 高尾山をイメージしたラッピング車両を運行 [Train to run with wrapping livery with Mt Takao theme] (PDF). News release (in Japanese). Japan: Keio Corporation. 24 September 2015. Archived (PDF) from the original on 6 October 2017. Retrieved 6 October 2017.