Keio 7000 series

File:Keio-Series7000-7727.jpg

8-car set 7727

File:7710Foldcolor.jpg

Set 7710 in pre-2002 color scheme

The is a Japanese electric multiple unit (EMU) commuter train type operated by the private railway operator Keio Corporation on commuter services in the western suburbs of Tokyo.

Technical details

• Control system
  • Refurbished: IGBT-VVVF
  • 10-car sets (6 motored cars): Chopper
  • 10-car sets (5 motored cars): VVVF
  • 8-car sets (5 motored cars): Chopper
  • 8-car sets (4 motored cars): VVVF
  • 6-car sets (4 motored cars): Chopper
  • 6-car sets (3 motored cars): VVVF
  • 4-car sets (2 motored cars): Chopper
  • 2-car sets (1 motored car): Chopper
• Motor output:
• Drive mechanism: Parallel cardan shaft
• Headlights: Sealed beam
• Destination indicators: roller blind

Body

The body is stainless steel. Early sets used corrugated panels, while sets made after 1987 had a beaten style. (Some corrugated-style cars were made after 1987 as middle cars for sets made early in production.) The sides were not painted. Fronts of early sets were the same color as the sides. The front designs are of two types, but the difference is minor.

Driver's cab

The driver's cab contains a T-shaped, one-handle master-controller system. The speedometer is analog, providing information up to .

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

• Driver's cab
  Driver's cab

Formations

Current formations

6-car formations

Sets are formed as follows:

	← Template:STN Template:STN →
Designation	Tc1	M1	T	M1	M2	Tc2
Capacity (total)	150	170	170	170	170	150
Numbering	7701 : 7705	7001 : 7005	7551 : 7555	7101 : 7105	7151 : 7155	7751 : 7755

10-car formations

Sets are formed as follows:

	← Shinjuku Keio-hachioji →
Designation	Tc1	M1	M2	T1	M1	T2	T2	M1	M2	Tc2
Capacity (total)	150	170	170	170	170	170	170	170	170	150
Numbering	7721 : 7729	7021 : 7029	7071 : 7079	7521 : 7529	7121 : 7129	7571 : 7579	7671 : 7679	7221 : 7229	7271 : 7279	7771 : 7779

• Set 7729 was scrapped in February 2020.

4-car formations

Sets are formed as follows:

	← Shinjuku Keio-hachioji →
Designation	Tc1	M1	M2	Tc2
Capacity (total)	150	170	170	150
Numbering	7801 : 7807	7201 : 7207	7251 : 7257	7851 : 7857

• Sets 7801 and 7802 are equipped with "Wanman" one-person operation on the Dōbutsuen Line.

2-car formations

Sets are formed as follows:

	← Shinjuku Keio-hachioji →
Designation	Mc	Tc
Capacity (total)	150	150
Numbering	7421 : 7425	7871 : 7875

Past formations

8-car formations

Sets were formed as follows:

	← Shinjuku Keio-hachioji →
Designation	Tc1	M1	M2	T1	T2	M1	M2	Tc2
Capacity (total)	150	170	170	170	170	170	170	150
Numbering	7706 : 7709	7006 : 7009	7056 : 7059	7506 : 7509	7556 : 7559	7106 : 7109	7156 : 7159	7756 : 7759

• Sets 7708 and 7709 had their "T1" and "T2" cars scrapped and were shortened to 6-car trains in November 2017.
• Sets 7706 and 7707 were scrapped due to the arrival of the 5000 series.

Interior

Seating consists of longitudinal bench seats, arranged 4-7-7-7-4 in intermediate cars. Original sets have no passenger information displays, but refurbished sets feature 3-color LED information displays (four per car).

• Interior of car in original condition
  Interior of car in original condition
• Inside of a refurbished car
  Inside of a refurbished car
• Priority seats of car in original condition
  Priority seats of car in original condition
• Priority seats of a refurbished car
  Priority seats of a refurbished car
• LED passenger information display
  LED passenger information display

Operations

Used on all Keio Corporation lines. (excluding Inokashira Line)

• For daytime operation, 10-car sets or 10-car trains of six-car sets coupled to four-car sets are used as Special Express and Semi Special Express trains.
• Eight-car trains of six-car sets coupled to two-car sets are used mainly as Local or Rapid trains.

History

File:7713original.JPG

Set 7713 at Wakabadai Station, 1988

The 7000 series began service in 1984. The 7000 series was built for local train service, and the first sets were five-car sets, rather than 4, 6 or 10 cars. The running performance of the new series was nearly the same as the Keio 6000 series. By 1996, 190 cars of the 7000 series had been built.

From 2001, 7000 series sets were introduced on Special Express, Semi Special Express, Express, and Rapid trains.

Keio announced in 2010 that 18 more of its 7000 series cars would be converted to VVVF inverter control. By 2012, the entire fleet was retrofitted with VVVF inverter control.