Keikyu N1000 series

The Keikyu N1000 series (京急新1000形, Keikyū Shin-1000-gata) is a DC electric multiple unit (EMU) train type operated by the private railway operator Keikyu on commuter services in the Tokyo area of Japan since 2002.[1][2]

Keikyu N1000 series
Stainless steel (left) and aluminium (right) N1000 series sets in May 2008
Manufacturer	J-TREC, Kawasaki Heavy Industries, Tokyu Car Corporation
Constructed	2002–
Entered service	March 2002
Refurbished	2017–
Number built	464 vehicles (78 sets) (as of 16 October 2019)
Number in service	456 vehicles (77 sets)
Number scrapped	8 vehicles (1 set; accident damage)
Formation	4/6/8 cars per set
Operator(s)	Keikyu
Specifications
Car body construction	Aluminium (batches 1-5), stainless steel (batches 6 onward)
Car length	18,000 mm (59 ft 1 in)
Width	2,830 mm (9 ft 3 in)
Doors	3 pairs per side
Maximum speed	120 km/h (75 mph)
Traction system	Variable frequency (GTO/IGBT/PMSM/SiC)
Electric system(s)	1,500 V DC overhead
Multiple working	600 series, 1500 series, 2000 series, 2100 series
Track gauge	1,435 mm (4 ft 8 ^1⁄2 in)

Operations

The eight-car sets are primarily used on limited-stop "Rapid Limited Express" and "Limited Express" services on the Keikyu Main Line, including through-running services to and from the Toei Asakusa Line, Keisei Oshiage Line, Keisei Main Line, and Hokuso Line.[2]Some of these eight cars sets are also being used on the Keikyu Airport Line. Four-car sets are used to form 12-car "Rapid Limited Express" and "Limited Express" services, and are also used singly on all-stations "Local" services.[2] The six-car formations delivered from 2011 are generally used on all-stations "Local" services.[2] The N1000 series sets can be used in multiple with other Keikyu EMU types, including the 600 series, 1500 series, 2000 series, and 2100 series.[2]

When Keikyu N1000 series that use SiC-VVVF system entered service, Toei banned those trains running through service due to unknown reasons. But it seems like this ban has cleared, when Keikyu N1000 set 1225F was first seen at Keisei-Takasago Station. [3]

Variants

Since the first set was introduced in March 2002, the type has undergone a number of design improvements. Sets built from 2002 to 2006 have painted aluminium bodies, whereas sets built from 2007 onward (sets 1073 onward) have unpainted stainless steel bodies. More detailed variations are described below.

Batch 1

Delivered February to June 2002.

• 8-car sets x 3: 1001, 1009, 1017
• 4-car sets x 2: 1401, 1405

These sets had single-arm pantographs and roller-blind destination indicators and originally used Siemens GTO variable-frequency drive (VVVF). Eight-car set 1001 was refurbished in September 2017. Refurbishment includes the addition of LED headlights, modifications to some of the passenger side windows to allow them to be opened. Additionally, set 1001 had its original Siemens GTO-VVVF replaced with Mitsubishi SiC-VVVF inverters. In December 2017, eight-car set 1017 was upgraded with LED lights and LCD-screens above the doors. The electrical systems were later replaced with Toyo Denki IGBT-VVVF inverters, which is also used on the Keikyu 2100 series. Set 1009 was refurbished like set 1001 between late 2018 and early 2019 and received Toyo Denki IGBT. [4] Four car set 1405 was changed from Siemens GTO to Toshiba IGBT in 2010.

• 
  1st-batch set 1001 in July 2007

Batch 2

2nd-batch set 1025 reliveried to commemorate the opening of Haneda Airport Terminal 2 in March 2005

Delivered May to July 2003.

• 8-car sets x 2: 1025, 1033
• 4-car sets x 2: 1409, 1413

The centre pillars of the passenger windows were discontinued. Set 1409 was upgraded in May 2018, and modifications included LED lights, LCD-displays above the doors, LED-displays on the sides, and replacement of the original GTO-VVVF propulsion systems with IGBT inverters supplied by Toshiba, which is also used on sets 1401 and 1405 from the earlier batch. Set 1413 was also upgraded like set 1409 and started service in December 2018. Set 1025 was refurbished in May and August 2019, and the original Siemens GTO was changed to Toyo Denki IGBT. Set 1033 is currently the only train left with Siemens GTO.

Batch 3

Delivered January to March 2005.

• 8-car sets x 2: 1041, 1049
• 4-car sets x 2: 1417, 1421

Feature IGBT variable-frequency drive. Set 1417 was refurbished in March 2019. This set now has LED lighting, LCD-displays above the doors, LED-displays and Toyo Denki IGBT.

• 
  3rd-batch 4-car set 1421 in June 2010

Batch 4

Delivered July to August 2005.

• 8-car sets x 1: 1057
• 4-car sets x 4: 1425, 1429, 1433, 1437

Feature full-colour LED destination indicators.

• 
  4th-batch 4-car set 1425 in March 2008

Batch 5

Delivered November 2006.

• 8-car sets x 1: 1065
• 4-car sets x 2: 1441, 1445

No design changes over 4th batch vehicles.

• 
  5th-batch 4-car set 1441 with full-colour LED destination indicators in May 2008

Batch 6

Delivered March 2007.

• 8-car set x 1: 1073

Use Mitsubishi inverters. Body design changed to unpainted stainless steel. The four-seat transverse bays at the ends of cars were replaced by longitudinal bench seats.

• 
  6th-batch 8-car set 1073 in May 2015

Batch 7

Delivered January to February 2008.

• 8-car sets x 2: 1081, 1089

Yellow warning tape was added around the door interiors.

• 
  Stainless steel 7th-batch 8-car set 1089 in March 2008

Batch 8

Delivered September to December 2008.

• 8-car sets x3: 1097, 1105, 1113
• 4-car sets x2: 1449, 1453

Batch 9

Delivered April to June 2009.

• 4-car sets x8: 1457, 1461, 1465, 1469, 1473, 1477, 1481, 1485

Batch 10

Delivered during fiscal 2010.[5]

• 8-car sets x 3: 1121, 1129, 1137
• 4-car set x 1: 1489

Audible warnings added for door opening/closing, and pairs of LCD passenger information screens installed above doors.[6]

In addition, 1137 was retired on March 2020 in the aftermath of the level crossing crash in September 5th 2019. [7]

• 
  10th-batch 8-car set 1137 in July 2010. This particular set was retired after involved in the 5th of September 2019 level crossing crash.

Batch 11

Delivered during fiscal 2011.[8]

• 8-car set x 1: 1145
• 6-car sets x 3: 1301, 1307, 1313

The third six-car set, 1313, entered service on 19 March 2012. This set uses LED interior lighting instead of fluorescent tubes.[9]

• 
  11th-batch 6-car set 1313 in May 2012

Batch 12

Delivered April 2012.

• 8-car sets x1: 1153
• 6-car sets x2: 1319, 1325

• 
  12th-batch 6-car set 1319 in May 2012

Batch 13

Delivered August 2013 to March 2014.

• 8-car sets x1: 1161
• 6-car sets x2: 1331, 1337

• 
  13th-batch 8-car set 1161 in June 2016

Batch 14

Delivered in mid to late 2014.

• 8-car sets x1: 1169
• 6-car sets x3: 1343, 1349, 1355

Batch 15

Delivered in 2015.

• 6-car sets x2: 1361, 1367

Set 1367 uses Toshiba PMSM-VVVF.

• 
  Keikyu N1000 set 1367F. This set uses Toshiba PMSM-VVVF.

1000-1800 series

Two new 1000-1800 series four-car sets (1801 and 1805) were delivered from J-TREC in February 2016. These two sets differ from earlier variants in having centre gangways on the cab ends as well as a vinyl-based red and ivory livery. [10] These two sets entered revenue service on 4 March 2016.[11] In mid 2016, set 1809 was delivered along with Batch 16.

• 
  Set 1801 in May 2016

Batch 16

Introduced in fiscal 2016.[12]

• 8-car sets x2 from February 2017: 1177, 1185
• 6-car sets x2 from November 2016: 1601, 1607

• 
  Stainless-bodied 16th-batch 8-car set 1185 in May 2017
• 
  Stainless-bodied 16th-batch 6-car set 1607 in December 2016

Batch 17

Introduced in fiscal 2017. These sets have stainless steel bodies painted in a red and ivory livery instead of the vinyl-based livery used on earlier batches.[13] Internally, pairs of LCD passenger information screens are provided above each set of doors.[13]

• 8-car sets x3 from February 2018: 1201, 1209, 1217
• 6-car sets x2 from January 2018: 1613, 1619

Batch 18

Introduced in fiscal 2018.[13]

• 6-car sets x7: 1625, 1631, 1637, 1643, 1649, 1655, 1661

• 
  Keikyu N1000 set 1637 on an Airport Express service to Zushi·Hayama Station.

Batch 19

• 8-car sets x1: 1225
• 6-car sets x1: 1667

Formations

8-car sets 1001 to 1033

The five eight-car (aluminium bodied) sets 1001 to 1033 are formed as follows, with four motored (M) cars and four trailer (T) cars.[14]

Designation	Muc	Tpu	Tu	Mu	Ms	Ts	Tps	Msc
Numbering	1xxx	1xxx	1xxx	1xxx	1xxx	1xxx	1xxx	1xxx

The "Tpu" and "Tps" cars are each fitted with two single-arm pantographs.[14]

8-car sets 1041 to 1065

The five eight-car (aluminium bodied) sets 1041 to 1065 are formed as follows, with six motored (M) cars and two trailer (T) cars.[14]

Designation	Muc	Tpu	M2u	M1u	M1s	M2s	Tps	Msc
Numbering	1xxx	1xxx	1xxx	1xxx	1xxx	1xxx	1xxx	1xxx

The "Tpu" and "Tps" cars are each fitted with two single-arm pantographs.[14]

8-car sets 1073 to 1169

The ten eight-car (stainless steel bodied) sets 1073 to 1145 are formed as follows, with six motored (M) cars and two trailer (T) cars.[14]

Designation	M2uc	M1u	Tu	M1u'	M2s	Ts	M1s	M2sc
Numbering	1xxx	1xxx	1xxx	1xxx	1xxx	1xxx	1xxx	1xxx

The "M1u" and "M1s" cars are each fitted with two single-arm pantographs, and the "M1u'" are fitted with one pantograph.[14]

6-car sets 1301 to 1367 and 1601 to 1667

The three six-car (stainless steel bodied) sets 1301 to 1313 are formed as follows, with four motored (M) cars and two trailer (T) cars.[14]

Designation	M2uc	M1u	Tu	Ts	M1s	M2sc
Numbering	13xx	13xx	13xx	13xx	13xx	13xx

The "M1u" and "M1s" cars are each fitted with two single-arm pantographs.[14]

4-car sets 1401 to 1405

The two four-car (aluminium bodied) sets 1401 to 1405 are formed as follows, with two motored (M) cars and two trailer (T) cars.[14]

Designation	Muc1	Tpu1	Tps1	Msc1
Numbering	14xx	14xx	14xx	14xx

The "Tpu1" and "Tps1" cars are each fitted with one single-arm pantograph.[14]

4-car sets 1409 to 1413

The two four-car (aluminium bodied) sets 1409 to 1413 are formed as follows, with two motored (M) cars and two trailer (T) cars.[14]

Designation	Muc1	T	Tp	Msc1
Numbering	14xx	14xx	14xx	14xx

The "Tp" cars are fitted with two single-arm pantographs.[14]

4-car sets 1417 to 1445

The eight four-car (aluminium bodied) sets 1417 to 1445 are formed as follows, with three motored (M) cars and one trailer (T) car.[14]

Designation	Muc1	M2	Tp	Msc1
Numbering	14xx	14xx	14xx	14xx

The "Tp" cars are fitted with two single-arm pantographs.[14]

4-car sets 1449 to 1489

The eleven four-car (stainless steel bodied) sets 1449 to 1489 are formed as follows, with four motored (M) cars.[14]

Designation	M2uc	M1u	M1s	M2sc
Numbering	14xx	14xx	14xx	14xx

The "M1u" and "M1s" cars are each fitted with one single-arm pantograph.[14]

Livery variations

Set 1057 "Yellow Happy Train" livery in May 2014

8-car set 1057 was repainted into a special "Yellow Happy Train" livery from May 2014.[15]

Accidents

A N1000 series train, set 1137[16] was involved in a collision with a truck on a level crossing near Kanagawa-shimmachi Station on 5 September 2019.[17]

This set was damaged beyond repair and was removed and scrapped in March 2020. [7]

References

1. Keikyu N1000 series Archived 25 December 2008 at the Wayback Machine. Retrieved 17 September 2008. (in Japanese)
2. 私鉄車両年鑑 2012: 大手15社営業用車両完全網羅 私鉄車両年鑑2012 [Japan Private Railways Annual 2012]. Tokyo, Japan: Ikaros Publications Ltd. February 2012. p. 123. ISBN 978-4-86320-549-9.
3. https://www.youtube.com/watch?v=jOQ8cdSAYco
4. 京急 新1000形更新車が営業運転を開始 [Refurbished Keikyu New 1000 series enters revenue service]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 22 September 2017. Archived from the original on 29 September 2017. Retrieved 29 September 2017.
5. 私鉄車両編成表 私鉄車両編成表 2011 [Private Railway Rolling Stock Formations - 2011]. Japan: Kotsu Shimbunsha. July 2011. p. 42. ISBN 978-4-330-22711-5.
6. 京浜急行電鉄　新１０００形１０次車 [Keikyu N1000 series 10th-batch cars]. Japan Railfan Magazine. Vol. 50 no. 592. Japan: Koyusha Co., Ltd. August 2010. p. 69.
7. https://gamp.ameblo.jp/ksminamu/entry-12587323640.html
8. 京急1000形でLED照明を本採用 [LED lighting used on Keikyu 1000 series]. Japan Railfan Magazine. Vol. 52 no. 614. Japan: Koyusha Co., Ltd. June 2012. pp. 84–85.
9. 京浜急行電鉄　新１０００形（１１次車） [Keikyu New 1000 series (11th batch unit)]. Tetsudō Daiya Jōhō Magazine. Vol. 41 no. 337. Japan: Kotsu Shimbun. May 2012. p. 75.
10. 京急 新1000形1800番台が総合車両製作所から出場 [Keikyu New 1000 series 1800 subseries delivered from J-TREC]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 25 February 2016. Retrieved 25 February 2016.
11. 京急 新1000形1800番台が営業運転を開始 [Keikyu New 1000 series 1800 subseries enter service]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 5 March 2016. Retrieved 5 March 2016.
12. 京浜急行電鉄新1000形16次車 [Keikyu New 1000 series 16th-batch EMUs]. Japan Railfan Magazine (in Japanese). Vol. 57 no. 670. Japan: Koyusha Co., Ltd. February 2017. p. 61.
13. 京急新1000形17次車　2018年春導入へ [Keikyu New 1000 series 17th batch trainsets to be introduced in spring 2018]. Tetsudo Hobidas (in Japanese). Japan: Neko Publishing Co., Ltd. 30 November 2017. Archived from the original on 1 December 2017. Retrieved 1 December 2017.
14. 私鉄車両編成表 2012 [Private Railway Rolling Stock Formations - 2012]. Japan: Kotsu Shimbunsha. July 2012. p. 42. ISBN 978-4-330-29911-2.
15. ""KEIKYU YELLOW HAPPY TRAIN"運行開始" [Keikyu Yellow Happy Train in service]. Tetsudo Hobidas (in Japanese). Japan: Neko Publishing. 30 April 2014. Retrieved 18 July 2014.
16. "京急本線で快速特急とトラックが接触…京急川崎-上大岡間で運行見合せ　9月5日中の再開は困難か？" [Rapid express and truck collision on the Keikyu Main Line]. response.jp (in Japanese). IID, Inc. 5 September 2019. Archived from the original on 6 September 2019. Retrieved 6 September 2019.
17. "One dead and more than 30 injured in train truck collision". The Japan Times. 5 September 2019. Archived from the original on 6 September 2019. Retrieved 6 September 2019.

External links

• Keikyu N1000 series information (in Japanese)
• Kawasaki Heavy Industries product information (in Japanese)
• Siemens order information