The is an
electric multiple unit
An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a numbe ...
(EMU) train type operated by the
private railway
A private railway is a railroad run by a private business entity (usually a corporation but not need be), as opposed to a railroad run by a public sector.
Japan
In Japan, , commonly simply ''private railway'', refers to a public transit railway o ...
operator
Keio Corporation
() is a private railway operator in Tokyo, Japan, and the central firm of the that is involved in transport, retail, real estate and other industries.
The name is derived from taking one character each from the places through which the railw ...
on commuter services in the Tokyo area of Japan since 1992.
Technical details
* MT ratio
** 0 subseries: 10-car set: 6M4T (six motor cars and four trailer cars; each motor car has four motors)
** 20 subseries: eight-car set: 4M4T
* Motor output:
* Gear ratio: 6.07
* Drive mechanism: Parallel cardan
* Traction control system:
GTO-
VVVF
A variable-frequency drive (VFD) is a type of motor drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and, depending on Topology (electrical circuits), topology, to control asso ...
* 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. Analog (formerly digital)
speedometer
A speedometer or speed meter is a gauge that measures and displays the instantaneous speed of a vehicle. Now universally fitted to motor vehicles, they started to be available as options in the early 20th century, and as standard equipment f ...
. TNS (Train Navigation System).
* Acceleration: 4 notch
* Deceleration: 7 notch + emergency
Formations
, the fleet consists of 14 ten-car sets and 13 eight-car sets (244 vehicles in total), formed as follows.
* c=Driver's cab; T=trailer, M=motor
0-subseries ten-car sets
20-subseries eight-car sets
Interior
File:Keio8000 inside.jpg, Interior of car in original condition
File:Priority seat of Keio 8000.jpg, Priority seats of car in original condition
File:Keio8000inside.JPG, Interior of a refurbished car
File:Keio8251 priority-seat-zone.jpg, Priority seats of a refurbished car
File:Keio-Series8000 Inside.jpg, Interior of a renewal car
File:Keio-Series8000 Inside Free-space.jpg, Priority seats of a renewal car
File:Keio 8000 Drivers cab.JPG, Driver's cab
File:Keio8000 Tc8854 Controler.jpg, Driver's cab with analog speedometer
History
The first 8000 series trains were introduced in 1992.
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
is an interchange passenger railway station and monorail station on located in the city of Hino, Tokyo, Japan. Most of the passengers boarding at Takahatafudō are commuters and students bound for central Tokyo, while those disembarking are vis ...
until 2006. From 2013 to 2019, all six- and four-car 0-subseries sets underwent a refurbishment program. Among several technical upgrades, the cabs of the two inner ends were removed to form 10-car sets.
The 8000 series trains are used exclusively on Keio Corporation lines. Thus, unlike some other Keio trains, they do not continue past Shinjuku on to the
Toei Shinjuku Line
The is a rapid transit line in Tokyo and Chiba Prefecture, Japan, operated by Tokyo Metropolitan Bureau of Transportation (Toei). The line runs between Motoyawata Station in Ichikawa, Chiba in the east and Shinjuku Station in the west. At Shinju ...
.
Set 8705F was involved on the
October 2021 Tokyo attack
At around 8 p.m. JST on 31 October 2021, a man, 24-year-old Kyota Hattori carried out a knife and arson attack on a Keiō Railway train as it was travelling to Kokuryō Station on the Keiō Line in Chōfu, a city in the western suburbs of Tokyo, ...
.
Special liveries
Set 8713 received a special all-over green livery in September 2009 evoking the livery carried by the former 2000 series trains.
References
{{DEFAULTSORT:Keio 8000 series
Electric multiple units of Japan
8000 series
Train-related introductions in 1992
Nippon Sharyo multiple units
1500 V DC multiple units of Japan
Tokyu Car multiple units