| E751 series | |
|---|---|
 An E751 series 6-car set on aTsugaru service in June 2006 | |
| In service | March 2000–Present |
| Manufacturer | Tokyu Car Corporation |
| Built at | Yokohama |
| Replaced | 485 series |
| Constructed | 1999–2000 |
| Number built | 18 vehicles (3 sets) |
| Number in service | 12 vehicles (3 sets) |
| Number scrapped | 6 vehicles |
| Formation | 4 cars per trainset |
| Fleet numbers | A101–A103 |
| Operators | JR East |
| Depots | Aomori |
| Lines served | Ōu Main Line |
| Specifications | |
| Car body construction | Aluminium alloy |
| Car length |
|
| Width | 2,976 mm (9 ft 9.2 in) |
| Floor height | 1,140 mm (3 ft 9 in) |
| Doors | 1 per side |
| Maximum speed | 130 km/h (80 mph) |
| Traction system | PWM 3-levelIGBT-VVVF (Hitachi) |
| Traction motors | 4 × Hitachi MT72 145 kW (194 hp) 3-phase AC squirrel-cage asynchronous induction motor |
| Power output | 2.32 MW (3,110 hp) |
| Electric system(s) | 20 kV 50 Hz ACoverhead line |
| Current collector(s) | Pantograph |
| Bogies | DT64A (motored), TR249A (trailer) |
| Safety system(s) | ATS-Ps |
| Track gauge | 1,067 mm (3 ft 6 in) |
TheE751 series (E751系) is anACelectric multiple unit (EMU) train type operated onTsugarulimited express services in the north of Japan byEast Japan Railway Company (JR East) since March 2000. The design was based on the earlier (1,500 V DC)E653 series EMUs, with improvements to cope with colder weather conditions in the north of Japan.[1]
The original six-car sets were shortened to four cars as shown below from 23 April 2011.[2] The sets were occasionally lengthened to six cars for increased capacity during busy periods by inserting a pair of MoHa E751 and MoHa E750 cars[3] until the three pairs of MoHa E751 and MoHa E750 cars were withdrawn in 2015.[4]
| Car No. | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| Designation | Thsc | M1 | M2 | Tc |
| Numbering | KuRoHa E750 | MoHa E751-100 | MoHa E750-100 | KuHa E751 |
| Weight (t) | 30.7 | 34.8 | 33.1 | 29.0 |
| Capacity | 38 (16 Grn + 22 Std) | 72 | 68 | |
Car 2 is equipped with one PS107 single-arm pantograph.
Sets were originally formed as six-car sets, consisting of four motored cars and two trailers, as shown below.[1][5] Sets were shortened to four cars from 23 April 2011.[6]
| Car No. | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Designation | Tc1 | M2 | M1 | M2 | M1 | Tsc' |
| Numbering | KuHa E751 | MoHa E750-100 | MoHa E751-100 | MoHa E750 | MoHa E751 | KuRoHa E750 |
| Weight (t) | 29.0 | 33.1 | 34.8 | 33.1 | 34.8 | 30.7 |
| Capacity | 68 | 72 | 38 (16 Grn + 22 Std) | |||
Cars 3 and 5 are each equipped with one PS107 single-arm pantograph.
Seating is configured 2+2 abreast in both standard class and Green class. Seat pitch is 910 mm (36 in) in standard class and 1,160 mm (46 in) in Green class.[1][6]
The first set was delivered to Aomori Depot fromTokyu Car Corporation's Yokohama factory on 9 December 1999, followed by the remaining two sets in January 2000. The fleet entered service onSuper Hatsukari services operating betweenMorioka andAomori from the start of the revised timetable on 11 March 2000.[5]
From 1 December 2002, the E751 series trains were reassigned to newTsugaru services operating betweenHachinohe andHirosaki, which replaced the formerSuper Hatsukari services following the opening of theTōhoku Shinkansen extension from Morioka to Hachinohe.[7]
In late 2006, all three sets underwent modifications at JR East's Kōriyama Works to reinforce the front end snowploughs and add protection plates to underfloor equipment.[5]
From the start of 4 December 2010 timetable revision, the E751 series sets were replaced onTsugaru services by 4-car485-3000 series EMUs,[8] and were temporarily removed from regular service. From 23 April 2011, the fleet of three E751 series sets were reinstated onTsugaru services, this time formed as 4-car sets, replacing the 485-3000 series sets.[6] The three pairs of MoHa E751 and MoHa E750 cars removed were stored at Aomori Depot, and occasionally reinserted into sets to provide increased capacity during busy seasons[3] until the three pairs of cars were withdrawn in 2015.[4]
The build details for the three sets are as follows.[5]
| Set No. | Manufacturer | Date delivered |
|---|---|---|
| A101 | Tokyu Car | 9 December 1999 |
| A102 | 12 January 2000 | |
| A103 | 27 January 2000 |
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