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Picture
A 7000 Series operating on the Toyoko Line (Courtesy of Uraken.net)
Picture
7000 Series trains on the Yurakucho Line have a yellow stripe 
(Courtesy of Railstation.net)

Tokyo Metro 7000 Series

Operated on the Tokyo Metro Yurakucho Line and Fukutoshin Line, Tokyu Toyoko Line, Seibu Ikebukuro Line, Seibu Yurakucho Line and Tobu Tojo Line

In Service: 1974 - Present
Top Speed: 100km/h (Service and design)
Length: 20000mm
Width: 2800mm
Consist/Formation:
5 motorized cars + 5 trailer cars (10 cars - VVVF formations)
6 motorized cars+ 4 trailer cars (10 cars - Chopper formations)
4 motorized cars + 4 trailer cars (8 cars)
Electric System: 1500v DC through overhead wires

Control: Automatic variable field control choppers
Gauge: 1067mm (Narrow)
Number Built: 340 cars

The 7000 Series is a four-door commuter-type electric multiple unit designed by the Teito Rapid Transit Authority (TRTA) for use on the Yurakucho Line.

The design of the 7000 Series is based on the previous 6000 Series built for the Chiyoda Line and shares the same aluminum alloy construction. The two trains are also very similar mechanically with the only major difference being in the usage of a more advanced chopper control.

The first four batches of trains were not equipped with air-conditioning and instead had only ventilation units on the roof. The fifth batch of trains built from 1988 onward were built with air-conditioning units and all other trains were modified by 1994.

Tokyo Metro moved some of the 7000 Series trains to the Fukutoshin Line when it opened in 2008 and these trains were given a brown, gold and white stripe. Some modifications including Automatic Train Operation equipment were added to these trains.

All 7000 Series trains currently in service with Tokyo Metro have been modified from chopper control to variable frequency drive (Known as VVVF in Japan)
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