ED4 (Electric trainset)

ED4
Manufacturer DMZ
Replaced ER2
Constructed from 1996
Entered service from 1997
Number built 475 (as of August 2014)
Formation 4, 6, 7, 8, 9, 10, 11, 12 cars
Operator(s) Russian Railways
Depot(s) 3+
Line(s) served 5+
Specifications
Car body construction steel, aluminium
Train length (4) 88.224 m (289 ft 5 3⁄8 in)
(6) 132.336 m (434 ft 2 1⁄8 in)
(7) 154.392 m (506 ft 6 3⁄8 in)
(8) 176.448 m (578 ft 10 3⁄4 in)
(9) 198.504 m (651 ft 3 1⁄8 in)
(10) 220.56 m (723 ft 7 1⁄2 in)
(11) 242.616 m (795 ft 11 3⁄4 in)
(12) 264.672 m (868 ft 4 1⁄8 in)
Car length 22.056 m (72 ft 4 3⁄8 in)
Width 3,522 mm (11 ft 6 5⁄8 in)
Height 4,253 mm (13 ft 11 1⁄2 in)
Maximum speed 130 km/h (81 mph)
Acceleration 0.67 m/s2 (2.2 ft/s2)
Deceleration 0.65 m/s2 (2.1 ft/s2)
Electric system(s) 3 kV DC Catenary
Current collection method Pantograph
Coupling system SA3
Track gauge 1,520 mm (4 ft 11 27⁄32 in) Russian gauge

ED4 (Electric train Demikhovskiy 4-th modification) is a series of Russian electric trainsets, in production since 1996. The trains are produced by DMZ and currently in service on RZD lines in almost every part of the country and former USSR states.

Production history

The ED4 was designed to accommodate Russia's need for a domestically produced electric train-set. Russia's most widely exploited electric trains, the ER1 and ER2 series, were produced by the Rīgas Vagonbūves Rūpnīca (RVR) plant in Latvia before the collapse of the USSR.

Design work began in 1996 on the basis of the earlier ED2 series, which were largely equipped with RVR components. Electronic equipment for the new train was manufactured by The Novocherkassk Electric Locomotive Plant, while the drive-train was built in Novosibirsk. ED4 train-cars are nearly identical to those used by both the ER29, and ED2T trains, differing mainly in having notably wider doors.

After successfully completing testing, the first train entered service at the Mineralnye Vody Depot of the North Caucasus Railway.

Only 5 trains carry the early ED4 identification, as the second variant, ED4M, began exclusive production thereafter. The main difference between the two trains is the equipment and shape of the operator's compartment.[1]

Four of the early ED4 trains are in currently in service on the Moscow Railway, one on the North Cacasus Railway, and one in Belgorod.[2]

Variants and modifications

ED4MKM-AERO

Mechanically almost identical to the ED4MKM, these trains have an updated interior, modified for the needs of airport commuters. The AERO trains are in service in Moscow and St.Petersburg, serving the Domodedovo, Vnukovo, Sheremtyevo and Pulkovo airports, respectively. The modified door mechanisms of the AERO were used on all later ED4M trains.[3]

See also

References

  1. ↑ Information about ED4
  2. ↑ Service of ED4 in Russia
  3. ↑ Video

External links

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