Sōtetsu 8000 series

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Sōtetsu 8000 series
Sotetsu 8000.jpg
8000 series EMU in original livery
In service 1990–Present
Manufacturer Hitachi
Number built 130 cars
Number in service 120 cars
Number scrapped 10 cars (set 8707, accident damage)
Formation 10 cars per set
Operator Sōtetsu
Depot(s) Kashiwadai depot
Specifications
Car body construction Aluminium
Car length 20 m
Width 2930 mm
Doors 4 pairs per side
Maximum speed 110 km/h
Transmission 49:10
Acceleration 3.0 km/h/s
Electric system(s) 1,500 V DC
Bogies Hitachi KH series
Braking system(s) Brake by wire
Safety system(s) Sōtetsu ATS
Dead man's switch
Track gauge 1,067 mm
Transverse seating bay

The Sōtetsu 8000 series (相鉄8000系?) is a type of electric commuter train, or EMU, operated by Sagami Railway (Sōtetsu) in Kanagawa Prefecture, Japan. They were designed to connect and operate as 10-car sets.

History[edit]

A total of 130 cars were built between 1990 and 2000 by Hitachi Ltd. in Yamaguchi Prefecture. They replaced many of the aging 6000 series and new 6000 series sets.

Body[edit]

They use a lightweight aluminium body. The design has changed to a practical design as modern, big pilot and non-symmetrical front design, etc.

Interior design[edit]

The basic color is white and all doors are colored white, too. Some cars have transverse seating.

Electrical equipment[edit]

The motor system is based on the New 7000 series.

This series adopted variable-frequency drive motors named "Hitachi HSV-03"; the motor power is 150 kW and installed as 4 motors per car. Power cars are two cars as one pair. The 8100 car establishes the VFD-controller, and the 8200 car establishes a compressor, etc.

The brake system was finished with Hitachi HSC and adopted brake by wire with regenerative brake.

Bogies are based on the New 7000 series, too. The name is "KH132B" (for power cars) and "KH135B" (for others). They have stand out disc brakes.

Safety system[edit]

The safety system uses a dead man's switch and automatic train stop.

Current usage[edit]

These sets are used primarily on Express and Rapid services during the daytime, and on Local services also during the peak hours.

Set 8707 was involved in a collision with a track maintenance vehicle in March 2004, at Shonandai Station, and was scrapped in 2006. The set was replaced by a newer Sotetsu 10000 series set.

Formation[edit]

8701 - 8707[edit]

Yokohama StationEbina Station/Shonandai Station
Car No. 1 2 3 4 5 6 7 8 9 10
Numbering 8700
(Tc2)
8100
(M1)
8200
(M2)
8600
(T2)
8100
(Ms1) ★
8200
(M2)
8600
(T1)
8100
(Ms1) ★
8200
(M2)
8500
(Tc1)
Equipment   CONT, PT MG, CP, PT   CONT, PT MG, CP, PT   CONT, PT MG, CP, PT  

8708 - 8713[edit]

←YokohamaEbina/Shonandai→
Car No. 1 2 3 4 5 6 7 8 9 10
Numbering 8700
(Tc2)
8100
(M1)
8200
(M2)
8600
(T2)
8100
(Ms1) ★
8200
(M2)
8600
(T1)
8100
(Ms1) ★
8200
(M2)
8500
(Tc1)
Equipment   CONT, PT CP, PT SIV CONT, PT CP, PT SIV CONT, PT CP, PT  

Key:

8100 and 8200 cars have motor, Power car, 8600 car is Trailer.

Refurbishment[edit]

Body[edit]

8000 series in new livery, October 2007.
  • The air conditioners were changed to new type, freon type which do not affect the Earth's ozone layer.
  • Some diamond-shaped pantographs were changed to single-arm.
  • In 2007, body painting began to be changed to a new color.
  • From 2007, coloring was changed to be like the Sotetsu 10000 series. The new coloring uses base color white and blue and orange.

Interior design[edit]

  • Some early formations do not have wheelchair space, so it was added in the 8700 and 8500 cars.
  • Some early formations do not have a doorbell, so all car doors were made the same.
  • The normal seats were changed to bucket seats and coloring changed from orange to purple.
  • Both ends of the seat were attached to white partition board and a curved pole.

Safety system[edit]

  • ATS was changed from original type to the same type as the East Japan Railway Company.
  • A new safety system was established. If no control in one minute, then the emergency brake engages and the train stops. This system is named by Japan "EB".