Keikyu N1000 series
Stainless steel (left) and aluminium (right) N1000 series sets in July 2021
In service	2002–present
Manufacturer	J-TREC, Kawasaki Heavy Industries, Tokyu Car Corporation
Family name	Sustina S13 Series (1000-1890 series only)
Replaced	800 series, 1000 series, 1500 series[1]
Constructed	2002–
Entered service	2002
Refurbished	2017–present
Number built	492 vehicles (83 sets)[verification needed]
Number in service	476 vehicles (80 sets; as of December 2021[update])[verification needed]
Number scrapped	8 vehicles (1 set; accident damage)
Formation	4/6/8 cars per set
Fleet numbers	8-car sets: 1001–1185, 1201–1225 6-car sets: 1301–1367, 1601–1667 4-car sets: 1401–1489, 1801–1809, 1891–
Operators	Keikyu
Lines served	KK Keikyu Main Line KK Keikyu Airport Line KK Keikyu Daishi Line KK Keikyu Kurihama Line KK Keikyu Zushi Line A Toei Asakusa Line KS Keisei Main Line KS Keisei Narita Airport Line KS Keisei Oshiage Line HS Hokuso Line
Specifications
Car body construction	Aluminium (batches 1-5) Stainless steel (batches 6-)
Car length	18 m (59 ft 1 in)
Width	2.83 m (9 ft 3 in)
Floor height	1.15 m (45 in)
Doors	3 pairs per side
Maximum speed	120 km/h (74.6 mph) (service) 130 km/h (80.8 mph) (design)
Traction system	1st-2nd batches (original): GTO–VVVF (Siemens) 1041F, 1049F (original): IGBT–VVVF (Siemens) 1st-5th batches (8-car sets, current), 6th-19th batches (4-car and 6-car sets), 1800 series: IGBT–VVVF (Toyo Denki) 6th-15th batches (8 car sets): IGBT–VVVF (Mitsubishi Electric) 1401F-1413F, 1367F: IGBT–VVVF (Toshiba) 1001F, Batch 16-19 (8-car sets): SiC–VVVF (Mitsubishi Electric) 1000-1890 series: SiC Hybrid IGBT–VVVF (Toyo Denki)
Traction motors	3-phase AC induction motor (except 1367F) 1367F: Permanent magnet synchronous motor
Power output	Siemens, Toshiba, Toyo Denki (8-car), Mitsubishi SiC: 190 kW Mitsubishi IGBT, Toyo Denki (4 and 6 car): 155kW
Acceleration	3.5 km/(h⋅s) (2.2 mph/s)
Deceleration	4 km/(h⋅s) (2.5 mph/s) (regular use) 4.5 km/(h⋅s) (2.8 mph/s) (emergency)
Electric system(s)	1,500 V DC (nominal) from overhead catenary
Current collector(s)	Pantograph
Braking system(s)	Electronically controlled pneumatic brakes, regenerative brakes
Safety system(s)	C-ATS
Multiple working	600 series, 1500 series, 2100 series
Track gauge	1,435 mm (4 ft 8+1⁄2 in)
Notes/references
This train won the 65th Blue Ribbon Award in 2022. ※ Awarded for 1000-1890 series "Le Ciel"

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.^[2][3]

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 the Toei Asakusa Line as well as the Keisei Oshiage Line, Keisei Main Line, and Hokuso Line.^[3] Some of these eight-car sets are also being used on the Keikyu Airport Line. Four-car sets are commonly used to form 12-car "Rapid Limited Express" and "Limited Express" services, and are also used singly on all-stations "Local" services;^[3] in addition, some are used on the Keikyu Daishi Line,^[4] with some being used to form eight-car trains for use on inter-running services to the Asakusa Line and Keisei lines.^[5] The six-car formations delivered from 2011 are generally used on all-stations "Local" services.^[3] 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.^[3]

Variants

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Since the first set was introduced in 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 stainless steel bodies. More detailed variations are described below. The Siemens inverters fitted to the first two batches prior to their refurbishment between 2017 and 2021 were known in Japan by the nickname "Do-re-mi-fa Inverter" (ドレミファインバータ), due to the distinctive ascending musical scale the trains produced when accelerating from a standstill.^[6]

Batch 1

Delivered February to June 2002.

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

These sets have single-arm pantographs and were formerly equipped with roller-blind destination indicators and Siemens GTO variable-frequency drive (VVVF) traction equipment.

• 
  Refurbished 1st-batch set 1001 in October 2020

Batch 2

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 had Siemens GTO inverters until 18 July 2021, where it operated as a charter from Shinagawa; its last run ultimately took place on 20 July. Following refurbishment, set 1033 received Toyo Denki IGBT inverters.

Batch 3

Delivered January to March 2005.

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

Initially built with Siemens-manufactured IGBT-VVVF inverters.

Set 1417 was refurbished in March 2019. This set now has LED lighting, LCD-displays above the doors, other LED displays, and was refitted with Toyo Denki-manufactured IGBT-VVVF inverters. Both 1041 and 1049 were powered by Siemens IGBT-VVVF.^{[tense verification needed]}

• 
  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.

Set 1065 has refurbished and refitted with Toyo Denki IGBT-VVVF.

• 
  5th-batch 8-car set 1065 with full-colour LED destination indicators in October 2020

Batch 6

Delivered March 2007.

• 8-car set x 1: 1073

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

Starting this batch until batch 16, all 8-car trains use Mitsubishi IGBT-VVVF inverters.

• 
  6th-batch 8-car set 1073 in July 2021

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 October 2020

Batch 8

Delivered September to December 2008.

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

Starting this batch until batch 20, all 4- and 6-car sets are powered by Toyo-Denki IGBT-VVVF unless noted.

• 
  Stainless steel 8th-batch 4-car set 1449 in October 2020

Batch 9

Delivered April to June 2009.

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

• 
  Stainless steel 9th-batch 4-car set 1481 in October 2020
• 
  Interior view of car 1482
• 
  Driver's cab

Batch 10

Delivered during fiscal 2010.^[7]

• 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.^[8]

In addition, 1137 was retired in March 2020 in the aftermath of the level crossing crash on 5 September 2019.^[9]

• 
  10th-batch 8-car set 1129 in October 2020

Batch 11

Delivered during fiscal 2011.^[10]

• 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.^[11]

• 
  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 October 2020

Batch 14

Delivered in mid to late 2014.^{[citation needed]}

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

• 
  14th-batch 8-car set 1169 in October 2020

Batch 15

Delivered in 2015.^{[citation needed]}

• 6-car sets x2: 1361, 1367

Set 1367 uses Toshiba-manufactured permanent-magnet synchronous motors.

• 
  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.^[12] These two sets entered revenue service on 4 March 2016.^[13] In mid 2016, set 1809 was delivered along with Batch 16.^{[citation needed]}

All three sets have stainless steel bodies painted in a red and ivory livery except the side of the doors and windows instead of the vinyl-based livery used on earlier batches.

• 4-car sets x3: 1801, 1805, 1809

• 
  Set 1801 in May 2016
• 
  Set 1805 in November 2017

Batch 16

Introduced in fiscal 2016.^[14] These trains inherit the livery used in the 1000-1800 series sets. They use LED lighting throughout, and they are Keikyu's first trains to use LED headlights from new.^[15] Internally, the trains feature a combination of longitudinal and transverse seating; each car has two bays of transverse seating, one at each end. The longitudinal seat partitions were enlarged.^[15]

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

• 
  Stainless steel-bodied 16th-batch 8-car set 1185 in May 2017
• 
  Stainless steel-bodied 16th-batch 6-car set 1601 in October 2020
• 
  Interior view
• 
  Transverse seating bays

Batch 17

Introduced in fiscal 2017. Starting from this batch, all trains will have stainless steel bodies painted in a red and ivory livery like batch 16, but also including the side of the doors and windows.^[16] Internally, pairs of LCD passenger information screens are provided above each set of doors.^[16]

• 8-car sets x3 from February 2018: 1201,^[17] 1209, 1217
• 6-car sets x2 from January 2018: 1613, 1619

• 
  17th-batch 8-car set 1209 in October 2020

Batch 18

Introduced in fiscal 2018.^[16]

• 6-car sets x7: 1625,^[18] 1631,^[19] 1637,^[20] 1643, 1649, 1655, 1661

• 
  18th-batch set 1649 in July 2021

Batch 19

• 8-car sets x1: 1225
• 6-car sets x1: 1667^[21]

• 
  19th-batch 8-car set 1225 in October 2020

1000-1890 series "Le Ciel" (Batches 20&21)

The 1000-1890 series 4-car sets were introduced into service from 6 May 2021 as part of Batch 20.^[22] These are the first trains in the fleet to feature rotating banks of seats; they can be arranged in a longitudinal or transverse seating configuration when required. The seats are similar to those used on the 2100 series but are 10 mm (0.39 in) wider.^[23] Power sockets are also provided. They are also the first trainsets in the fleet to feature toilets; car 2 features a universal-access Western toilet,^[23] and car 3 features a men's toilet.^[24] The trains are intended for use on reserved seat "Wing" services as well as chartered event services.^[25]

Shortly after their initial entry into service, Keikyu announced that it would procure three additional 4-car sets as part of its investment plan for fiscal 2021.^[26] The first of these three sets (1893) entered service on 29 November 2021 as part of Batch 21.^{[27][better source needed]}

Following a nickname contest for the 1000-1890 series fleet held between June and July 2021, the nickname "Le Ciel" (The Sky in French) was announced for the 1000-1890 series fleet on 24 December.^[28] Four entries were given honourable mentions: "Red Rabbit", "Leap", "Sunsun", and "Kofu".^[29] From 26 March 2022, the intermediate cars of sets 1891, 1892, 1894, and 1895 were adorned with "Le Ciel" branding.^[30]

On 26 May 2022, the 1000-1890 series received the Blue Ribbon Award.^[31]

• 4-car sets x5: 1891, 1892, 1893, 1894,^[32] 1895^[33]

• 
  "Le Ciel" branding as used with the 1000-1890 series
• 
  Interior of a 1000-1890 series set
  Zdroj:https://en.wikipedia.org?pojem=Keikyu_N1000_series
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