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MRTJ 1000 series

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MRT Jakarta Series K1 1 18
MRT Jakarta 1000 series Ratangga
Set 03 with Jak Lingko logo.
Interior of the set
In service2019–present
ManufacturerNippon Sharyo
Order no.CP 108
Built atToyokawa, Aichi, Japan
Constructed2018
Entered service24 March 2019
Number built96 vehicles (16 sets)
Number in service96 vehicles (16 sets)
Formation6-car sets
Tc1-M2'-M1'-M2-M1-Tc2
Fleet numbers01–16
OperatorsMRT Jakarta
DepotsLebak Bulus
Lines servedNorth–South Line
Specifications
Car body constructionStainless steel
Train length118.15 m (387 ft 8 in)
Car length
  • 20,075 mm (65 ft 10.4 in) (Tc)
  • 19.5 m (64 ft 0 in) (M)
Width2.95 m (9 ft 8 in)
Height
  • 3,655 mm (11 ft 11.9 in) (roof)
  • 3,985 mm (13 ft 0.9 in) (top of AC)
  • 3,995 mm (13 ft 1.3 in) (top of folded pantograph)
Floor height1.15 m (3 ft 9 in)
Doors4 per side
Wheel diameter860–820 mm (34–32 in) (new–worn)
Wheelbase2,100 mm (6 ft 11 in)
Maximum speed100 km/h (62 mph)
Traction systemToyo Denki RG6036-A-M IGBT–VVVF[1]
Traction motors16 × Toyo Denki TDK6326-A 126 kW (169 hp) asynchronous 3-phase AC
Power output2,016 kW (2,704 hp)
TransmissionTwin-Disc (TD) Drive; gear ratio: 6.53 : 1 (98 / 15)[1]
Acceleration0.92 m/s2 (3.0 ft/s2)
Deceleration
  • 0.8 m/s2 (2.6 ft/s2) (service)
  • 1 m/s2 (3.3 ft/s2) (emergency)
Electric system(s)1,500 V DC (nominal) from overhead catenary
Current collector(s)Pantograph
UIC classification2′2′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+2′2′
BogiesND-748 (powered), ND-748T (trailer)
Safety system(s)Nippon Signal SPARCS moving block CBTC with subsystems of ATC, ATO under GoA 2 (STO), ATP, ATS, CBI
Coupling systemShibata close-contact
SeatingLongitudinal
Track gauge1,067 mm (3 ft 6 in)
Notes/references
Sourced from [2] except where noted

The MRT Jakarta 1000 series, known legally as the Series K1 1 18,[a] are the first generation rolling stocks to operate in the MRT Jakarta system. The train set is also known as the Ratangga.[3][4] The train set was manufactured by Japanese company Nippon Sharyo under Contract CP108, all sets were built in 2018 and started operation on 24 March 2019. It is classified as an executive class train operated with a formation of six trains in each set.[5][6]

History

[edit]
Train K1 1 18 11, the first unit of the Jakarta MRT KRL to be unloaded from the ship in April 2018

In February 2014, four participants who passed the pre-qualification process for the rolling stock tender were Hitachi-Mitsui Consortium, Sumitomo Corporation, Mitsubishi Corporation, and Kawasaki-Itochu JV.[7]

The manufacture of the Ratangga trains is included in the Phase I North–South Line project as CP 108. The CP 108 contract for the procurement of the Jakarta MRT rolling stock was awarded to the Sumitomo Corporation - Nippon Sharyo consortium on 3 March 2015.[8] The 16 trains, consisting of six trains each, were ordered at a cost of approximately ¥10.8 billion (Rp145 billion).[9] The trains themselves were made at the Nippon Sharyo's Toyokawa, Aichi plant.[10]

In the middle of the production period, the train design was changed in 2017. This design change was prioritised on the machinist's cabin which was considered to 'look like a cricket.'[11] The design change changed the contract agreement and was estimated to increase production costs by as much as Rp64 billion.[12]

Ratangga deliveries were made in 2018. The first shipment of two trains arrived at Tanjung Priok Port on 4 April 2018.[13][14] The name Ratangga as the designation of the train was announced on 10 December 2018.[3][4]

The first train test was conducted on 9 August 2018. This test was conducted to test the signalling and train systems.[15][16] Meanwhile, the first trial of the series with passengers was carried out on 12 March 2019 which was also a limited public trial.[17] The Ratangga series was first fully operated in conjunction with the inauguration of the Jakarta MRT North-South Line on 24 March 2019.[5][6]

Naming

[edit]

This series of electric railway trains is called Ratangga. The name Ratangga after deliberations between PT MRT Jakarta and the Ministry of Education and Culture's Language Agency. The name Ratangga is taken from the Arjuna Wiwaha and Sutasoma books by Mpu Tantular. Ratangga itself means wheeled vehicle, chariot, or war chariot in Old Javanese. The choice of the chariot naming, synonymous with a strong and dynamic horse-drawn carriage, is expected to symbolize a prayer for the smooth operation of the Jakarta MRT. The naming was announced on December 10, 2018, by the then Governor of Jakarta, Anies Baswedan, who gave the first batch of MRT Jakarta trainsets their current name.[18]

Specifications

[edit]

Each car measures approximately 20 m (65 ft 7 in) in length, 2.9 m (9 ft 6 in) in width and 3.9 m (12 ft 10 in) in height, similar dimensions to many Japanese commuter trains.[19] Each train has four doors on each of its two sides, except for the first train and the sixth train which have an additional driver's cabin door on each side. These trains use the CBTC signaling system and are equipped with automatic train operation (ATO) under GoA 2. The automatic train control is centralised at Lebak Bulus Depot. However, there is still a driver on the train to control the doors and operate the train during emergencies.[20] Like the KRL Commuterline, the MRT trains are also powered via overhead catenary.[21]

Formation

[edit]

Each Ratangga consists of six trains. Each train has two driver cabins located at the front and rear of the train. The two trains do not have motors, also known as trailer cars (Tc). Meanwhile, the second to fifth trains have motors, also known as motor cars (M).[22] All Ratangga trains are classified as executive trains and have serial numbers K 1 18 01 to K 1 18 96. The complete formation of a Ratangga train consists of Tc1-M2'-M1'-M2-M1-Tc2.[23] The sets offers a women-only carriage during morning peak hours from 7AM to 9AM and in the afternoon from 5PM to 7PM.[24]

MRTJ 1000 trainset
Series arrangement
Type Tc2 M1 M2 M1' M2' Tc1
Passenger capacity 307 332 336 336 332 307
Number of seats 48 54 51 51 54 48
[edit]

The Ratangga and part of the North-South MRT Line tunnel are featured on the front of the Rp75,000 design. The electric railway train is placed just below the images of Sukarno and Mohammad Hatta and next to the Youtefa Bridge and the Rp75,000 currency value text. The Ratangga train is included in the design to symbolise the achievement of infrastructure development in the 75 years of the Republic of Indonesia.[25][26]

Notes

[edit]
  1. ^ Classified legally as electric powered-executive-class trains by the Ministry of Transportation, hence the K1. This number is also used for the second-batch trains for the Soekarno–Hatta Airport Skytrain.

References

[edit]
  1. ^ a b "Electrical equipment of Jakarta Mass Rapid Transit (MRTJ)" (PDF) (in Japanese and English). Toyo Denki. 2019. Archived from the original (PDF) on 3 April 2023. Retrieved 11 February 2023.
  2. ^ "ジャカルタ都市高速鉄道南北線向け電車" (in Japanese). Nippon Sharyo. Retrieved 11 February 2023.
  3. ^ a b "MRT Diberi Nama Ratangga, Diambil dari Kitab Mpu Tantular". CNN Indonesia. 10 December 2018. Retrieved 2021-01-10.
  4. ^ a b Nailufar, Nibras Nada (10 December 2018). Aziza, Kurnia Sari (ed.). "Ratangga, Nama Baru Kereta MRT Jakarta..." Kompas.com. Retrieved 2021-01-10.
  5. ^ a b Sari, Nursita; Aziza, Kumia Sari (2019-03-23). "Pagi Ini, Presiden Jokowi Resmikan MRT Jakarta Halaman all". KOMPAS.com (in Indonesian). Retrieved 2024-01-26.
  6. ^ a b Tim. "Jokowi Resmikan MRT di Bundaran HI". nasional (in Indonesian). Retrieved 2024-01-26.
  7. ^ Rachmita, Fani (2014-02-19). "MRT enters final bidding processes". Institute for Transportation and Development Policy. Retrieved 2024-07-24.
  8. ^ "Kontrak Rolling Stock Proyek MRT Jakarta Ditandatangani" (PDF) (Press release) (in Indonesian). PT MRT Jakarta. 3 March 2015. Archived from the original (PDF) on 16 March 2015.
  9. ^ Ady Sukarno, Puput (3 March 2015). "PROYEK MRT JAKARTA: Sumitomo Corporation Menangkan Tender Kereta Listrik". Bisnis.com. Retrieved 23 July 2020.
  10. ^ Riana, Friski (11 December 2017). "Melihat Kereta MRT Jakarta Diproduksi: Tak Lagi Mirip Jangkrik". Tempo (in Indonesian). Retrieved 4 April 2019.
  11. ^ Putro, Galang Aji (16 January 2017). "Sumarsono Sebut Kereta MRT Mirip Jangkrik, Minta Desain Ulang". detikcom. Retrieved 2021-01-10.
  12. ^ Rudi, Alsadad (18 January 2017). Ali, Fidel (ed.). "Desain Kereta MRT "Jangkrik" Diubah, Biaya Produksi Bertambah Jadi Rp 64 Miliar". Kompas.com. Retrieved 2018-04-23.
  13. ^ Mutmainah, Hesti Rika & Dinda Audriene; Audriene Mutmainah, Dinda (4 April 2018). "Dua Rangkaian Kereta MRT Datang, Siap Uji Coba Agustus". CNN Indonesia. Retrieved 2021-01-10.
  14. ^ Yasmin, Puti Aini (5 April 2018). "Gerbong MRT Tiba, Menhub Cek Langsung ke Tanjung Priok". detikcom. Retrieved 2021-01-10.
  15. ^ "Uji Coba Perdana Rangkaian Kereta MRT, Begini Hasilnya". Tempo.co (in Indonesian). 12 August 2018. Retrieved 2021-01-10.[dead link‍]
  16. ^ Malik, Dusep; Ginanjar Mukti, Fajar (21 August 2018). "Mulai Lintasi Rel Bawah Tanah, Begini Tahapan Ujicoba MRT Jakarta". VIVA.co.id. Retrieved 2021-01-10.
  17. ^ Velarosdela, Rindi Nuris (12 March 2019). Patnistik, Egidius (ed.). "Uji Coba Operasi MRT Jakarta untuk Publik Dimulai Hari Ini". Kompas.com. Retrieved 2020-12-05.
  18. ^ Farozy, Iko Haidar (10 December 2018). "Nama Kereta MRT Jakarta Diresmikan Gubernur DKI". Railway Enthusiast Digest. Retrieved 10 December 2018.
  19. ^ "Kereta MRT Jakarta: Untuk Kenyamanan Mobilitas Penumpang". MRT Jakarta (in Indonesian). 16 January 2018. Archived from the original on 20 September 2020. Retrieved 4 April 2019.
  20. ^ "CBTC: Untuk Keamanan, Kenyamanan, dan Keandalan MRT Jakarta". MRT Jakarta (in Indonesian). 3 December 2017. Archived from the original on 11 January 2020. Retrieved 4 April 2019.
  21. ^ "MRT Jakarta to be fully operational in 2024". Investor Daily. PwC. 2 July 2018.
  22. ^ "MRT Jakarta : Ratangga". Himpunan Mahasiswa Sipil Institut Teknologi Sepuluh Nopember. Archived from the original on 2021-01-13. Retrieved 2021-01-11.
  23. ^ "ジャカルタ都市高速鉄道南北線向け電車". Nippon Sharyo (in Japanese). Retrieved 2020-10-19.
  24. ^ "MRT Sediakan Satu Kabin Kereta Khusus Penumpang Wanita di Jam-jam Sibuk". Tribunnews.com (in Indonesian). 13 March 2019. Retrieved 4 April 2019.
  25. ^ Afriyadi, Achmad Dwi (18 August 2020). "Makna di Balik MRT hingga Jembatan Youtefa di Uang Rp 75.000". detikcom. Retrieved 2021-01-12.
  26. ^ Uly, Yohana Artha (18 August 2020). Djumena, Erlangga (ed.). "Ratangga Ada di Desain Uang Rp 75.000, Ini Kata MRT Jakarta". Kompas.com. Retrieved 2021-01-12.
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