JNR Class ED75

Class ED75

JR Freight refurbished ED75 143, June 2010
Type and origin
Power type Electric
Builder Hitachi, Mitsubishi, Toshiba
Build date 1963–1976
Total produced 302
Specifications
UIC class Bo-Bo
Gauge 1,067 mm (3 ft 6 in)
Bogies DT129
Wheel diameter 1,120 mm (3 ft 8 in)
Length 14,300 mm (46 ft 11 in)
Width 2,800 mm (9 ft 2 in)
Loco weight 67.2 t
Electric system(s) 20 kV AC
Current collection Overhead catenary
Traction motors MT52 x 4
Performance figures
Maximum speed 100 km/h (60 mph)
Power output 1,900 kW
Career
Operators JR Freight, JR East
Delivered 1963
Preserved 3
Disposition Still in service

The Class ED75 (ED75形) is a Bo-Bo wheel arrangement AC electric locomotive type operated on passenger and freight services in Japan since 1963.[1] A total of 302 locomotives were built by Hitachi, Mitsubishi, and Toshiba between 1963 and 1976.[2]

Variants

ED75-0

This was the original type. Two prototypes, ED75 1 and 2, were delivered in 1963, built by Hitachi and Mitsubishi.[2] Following test running, a further 158 locomotives were built from 1964 by Hitachi, Mitsubishi, and Toshiba.[1] Locomotive numbers 50 to 100 were equipped for cold regions, and were fitted with icicle cutters above the driving cab windows.[1]

As of 1 April 2013, just four Class ED75-0 locomotives remained in service, owned by JR Freight.[3]

ED75-300

11 Class ED75-300 locomotives were built from 1965 to 1968 by Hitachi and Mitsubishi for use in Kyushu, numbered ED75 301 to ED75 311. These locomotives used a 20 kV AC 60 Hz power supply.[2]

ED75-500

One Class ED75-500 locomotive, number ED75 501 was built experimentally for use on the recently electrified Hakodate Main Line between Otaru and Asahi in Hokkaido. No further locomotives in this sub-class were built, as Class ED76-500 locomotives were instead chosen for this route.[2]

ED75-700

91 Class ED75-700 locomotives were built from 1971 to 1976 by Hitachi, Mitsubishi, and Toshiba, for use on the Ou Main Line and Uetsu Main Line, numbered ED75 701 to ED75 791. These locomotives used a 20 kV AC 50 Hz power supply.[2] These locomotives differed from earlier examples in having PS103 cross-arm type pantographs.[1] 34 members of this subclass were converted to become Class 79 locomotives in 1988 for use on services through the undersea Seikan Tunnel between Honshu and Hokkaido.[1][2]

As of 1 April 2013, just five Class ED75-700 locomotives remained in service, owned by JR East.[3]

ED75-1000

The ED75-1000 subclass were built from 1968 for use on express freight services. 25 locomotives were built between 1968 and 1970, followed by a second batch of 14 locomotives built from 1973 to 1976, bringing the total to 39.[2]

JR Freight started a programme of life-extension refurbishment of its Class ED75-1000 fleet from 1993, and refurbished locomotives were initially repainted in a new livery with the bottom half of the body sides finished in ivory.[4] The livery applied to refurbished locomotives was subsequently simplified to just adding a white stripe along the bottom of the body sides.[4]

From the start of the 17 March 2012 timetable revision, the remaining scheduled JR Freight workings using ED75 locomotives, operating in pairs, were completely replaced by JR Freight Class EH500 locomotives.[4] As of 1 April 2013, JR Freight retained just eight Class ED75-1000 locomotives.[3]

Livery variations

Preserved examples

As of 2014, three examples have been preserved, as listed below.[5]

See also

References

  1. 1 2 3 4 5 JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. pp. 43–44. ISBN 978-4-7770-0836-0.
  2. 1 2 3 4 5 6 7 Inoue, Kōichi (1999). 国鉄機関車辞典 [JNR Locomotive Encyclopedia]. Japan: Sankaido. pp. 144–147. ISBN 4-381-10338-6.
  3. 1 2 3 JR気動車客車編成表 2013 [JR DMU & Coaching Stock Formations - 2013]. Japan: JRR. 30 June 2013. pp. 142–143. ISBN 978-4-330-37813-8.
  4. 1 2 3 JR機関車カタログ [JR Locomotive Catalogue]. Japan: Ikaros Publications Ltd. 20 June 2013. pp. 52–55. ISBN 9784863207271.
  5. ↑ Sasada, Masahiro (25 November 2014). 国鉄&JR保存車大全2015-2016 [JNR & JR Preserved Rolling Stock Complete Guide 2015-2016] (in Japanese). Tokyo, Japan: Ikaros Publications Ltd. p. 122. ISBN 978-4863209282.
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