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E751 series
E751 series
	An E751 series 6-car set on a Tsugaru 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	21 m (68 ft 11 in) (end cars); 20.5 m (67 ft 3 in) (intermediate cars);
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-level IGBT-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 AC overhead line
Current collector(s)	Pantograph
Bogies	DT64A (motored), TR249A (trailer)
Safety system(s)	ATS-Ps
Track gauge	1,067 mm (3 ft 6 in)

The E751 series (E751系) is an AC electric multiple unit (EMU) train type operated on Tsugaru limited express services in the north of Japan by East 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]

Formations

4-car sets (April 2011–Present)

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by inserting a pair of MoHa E751 and MoHa E750 cars^[3] until the three pairs of MoHa E751 and MoHa E750 cars were withdrawn in 2015.^[4]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.

6-car sets (March 2000–April 2011)

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.

KuHa E751
MoHa E750-100
MoHa E751-100
MoHa E750
MoHa E751
KuRoHa E750

Interior

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]

Standard-class accommodation (MoHa E750-100)
Green-class accommodation (KuRoHa E750)

History

The first set was delivered to Aomori Depot from Tokyu Car Corporation's Yokohama factory on 9 December 1999, followed by the remaining two sets in January 2000. The fleet entered service on Super Hatsukari services operating between Morioka and Aomori from the start of the revised timetable on 11 March 2000.^[5]

From 1 December 2002, the E751 series trains were reassigned to new Tsugaru services operating between Hachinohe and Hirosaki, which replaced the former Super Hatsukari services following the opening of the Tōhoku 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 on Tsugaru services by 4-car 485-3000 series EMUs,^[8] and were temporarily removed from regular service. From 23 April 2011, the fleet of three E751 series sets were reinstated on Tsugaru 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]

Build details

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

References

^ ^a ^b ^c JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. ISBN 978-4-7770-0836-0.
^ JR電車編成表 2011夏 [JR EMU Formations – Summer 2011]. Japan: JRR. May 2010. p. 16. ISBN 978-4-330-21211-1.
^ ^a ^b Matsumoto, Norihisa (April 2014). 転用進むＪＲ特急車 [JR Limited Express Trains and Continuing Reassignment]. Japan Railfan Magazine (in Japanese). Vol. 54, no. 636. Japan: Koyusha Co., Ltd. pp. 28–29.
^ ^a ^b 車両のうごき2015-2016 [Rolling Stock changes 2015-2016]. Japan Railfan Magazine (in Japanese). Vol. 56, no. 663. Japan: Koyusha Co., Ltd. July 2016. p. 66.
^ ^a ^b ^c ^d JR電車編成表 2010夏 [JR EMU Formations – Summer 2010]. Japan: JRR. May 2010. p. 14. ISBN 978-4-330-14310-1.
^ ^a ^b ^c 特急「つがる」へのＥ７５１系車両導入について [Introduction of E751 series trains on "Tsugaru" limited express] (PDF) (in Japanese). Japan: East Japan Railway Company – Akita Branch. 19 April 2011. Retrieved 24 April 2011.
^ Haraguchi, Takayuki (2009). Encyclopedia of JR's Railway Cars: ＪＲ全車輌. Japan: Sekai Bunka. p. 50. ISBN 978-4-418-09905-4.
^ 2010年12月ダイヤ改正について [December 2010 Timetable Revision] (in Japanese). JR East – Akita Branch. 24 September 2010. pp. 8–9. Archived from the original on 10 October 2010. Retrieved 6 December 2010.