Keiō 9000 series

Infobox EMU
name = Keiō 9000 series


imagesize = 200px
caption = 8-car set 9706 on the Keiō Line
InService = 2001
Manufacturer = Nippon Sharyo, Tokyu Car Corporation
Family =
Built =
Refurbishment =
Formation = 8/10 cars per trainset
Operator = Keio Corporation
Depots = Takahatafudō and Wakabadai
LinesServed =
CarLength = 20 m
CarWidth = 2,845
CarHeight = 4,100
MaxSpeed = 110 km/h (on Keiō Corporation lines), 75 km/h (on Toei Shinjuku Line), 120 km/h (designed)
Weight =
Capacity = 141 (end cars), 152 (intermediate cars)
Acceleration = 2.5 km/h/s (on Keio Corporation Line), 3.3 km/h/s (on Toei Shinjuku Line)
Deceleration = 4.0 km/h/s (4.5 km/h/s for emergency brake)
Traction = IGBT-VVVF
Power = 170 kW per motor
Gauge = 1,372 mm
Voltage = 1,500 V DC overhead
Brakes = Electric commanding brake with Regenerative brake
SafetySystem = ATS, Digital-ATC (30 series only)The nihongo|9000 series|9000系|9000-kei is an electric multiple unit operated by Keio Corporation on the Keiō Line and its branches in Tokyo and Kanagawa, Japan.

History

The first 9000 series entered service in January 2001. The original 0 subseries sets were formed as eight 8-car sets (numbered 9701 to 9708).
* Built in fiscal 2000 - 9701, 9702
* Built in fiscal 2001 - 9703, 9704, 9705
* Built in fiscal 2002 - 9706
* Built in fiscal 2003 - 9707
* Built in fiscal 2004 - 9708

From May 2005, a new version compatible with Shinjuku Line equipment, the 30 subseries, was introduced as 10-car formations.
* Built in fiscal 2005 - 9731, 9732
* Built in fiscal 2006 - 9733, 9734, 9735
* Built in fiscal 2007 - 9736, 9737, 9738
* Built in fiscal 2008 - 9739, 9740, 9741 (as of June 2008)

Additional technical details

*MT ratio
**0 series: 4M4T (4 motor cars and 4 trailers, motor cars have 4 motors)
**30 series: 5M5T
*Gear ratio: 6.07
*Drive mechanism: Parallel cardan
*Headlights: Sealed beam
*Destination indicators:
**0 series: 3-color LED
**30 series: Full-color LED
*Passenger information displays:
**0 series: 3-color LED (4 per car)
**30 series (first 5 sets): 3-color LED (4 per car)
**30 series (9036F and later): Full-color LCD (8 per car)
*Doors per side: 4

Body

The front end design is based on the design of the former 5000 series. The body is stainless steel and manufactured with the Nippon Sharyo's unique "block structure" system (日車式ブロック工法). Some sets were built at Tokyu Car Corporation, but body structures are the same as the Nippon Sharyo sets. The front portion is steel painted in ivory white.

Driver's cab

The master controller is one-handle type with a T-shape handle. Speed meter is analog and can indicate up to 140km/h. A train navigation system (TNS) is installed.
*Acceleration: 4 notches
*Deceleration: 7 notches + emergency

Lines of operation

0 series

Although it can be used on all 1,372 mm gauge lines of Keiō, it is mainly used on the Keiō Line, the Takao Line and the Sagamihara Line.

On day time, it is mainly used on Local and Rapid services. It is also used on Semi Special Express service with 10-car format. When it organizes 10-car sets, two cars of 6000 series are coupled.

30 series

The main usage of 30 series sets is the through express service on the Keiō Line, the Sagamihara Line and the Toei Shinjuku Line. It is rarely used on the section west of Chōfu Station on the Keiō Line.