Kawasaki Heavy Industries C151

Kawasaki Heavy Industries (KHI) C151
A Kawasaki C151 train before refurbishment
A refurbished Kawasaki C151 train
Interior of a Kawasaki C151 before refurbishment
Interior of a refurbished Kawasaki C151
Stock typeElectric multiple unit
In service7 November 1987; 37 years ago (1987-11-07) – Present
ManufacturerKawasaki (with Nippon Sharyo, Tokyu Car Corporation, and Kinki Sharyo)[1]
Built atKobe, Japan[2]
Constructed1986 – 1989
Entered service7 November 1987; 37 years ago (1987-11-07)
RefurbishedHyundai Rotem (with Mitsui)[3]
2006 – 2008
Retired22 June 2020 – 2026
ScrappedJune 2020 – Current [4]
Number built396 Vehicles (66 Sets)
Number in service288 Vehicles (48 Sets)
Number preserved6 Vehicles
Number scrapped102 Vehicles
SuccessorAlstom Movia R151
Formation6 cars per trainset
DT–M1–M2+M2–M1–DT
Fleet numbers
  • 001/002 – 131/132 (regular six-car trains)
  • 301 & 302 (cash train)
Capacity1920 passengers
  • 372 seats (as built)
  • 208 seats (refurbishment)
OperatorsSMRT Trains (SMRT Corporation)
Depots
Lines served
Specifications
Car body constructionAluminium-alloy double-skinned construction[2]
Train length138.5 m (454 ft 4+34 in)
Car length
  • 23.65 m (77 ft 7 in) (DT)
  • 22.8 m (74 ft 10 in) (M)
Width3.2 m (10 ft 6 in)
Height3.69 m (12 ft 1+14 in)
Doors1,450 mm (57+116 in), 8 per car
Wheel diameter850–775 mm (33.5–30.5 in) (new–worn)[5]
Wheelbase2,500 mm (98 in)[5]
Maximum speed
  • 90 km/h (56 mph) (design)
  • 80 km/h (50 mph) (service)
Weight
  • 21.7 t (21.4 long tons; 23.9 short tons) (DT)
  • 38.3 t (37.7 long tons; 42.2 short tons) (M1)
  • 38.4 t (37.8 long tons; 42.3 short tons) (M2)
Axle load16 t (16 long tons; 18 short tons)[5]
Traction system
Traction motors
Power outputAs built: 2.32 MW (3,111 hp)
TransmissionWestinghouse-Natal (WN) Drive; gear ratio: 6.57 : 1 (92 / 14)
Acceleration1 m/s2 (2.2 mph/s)
Deceleration
  • 1 m/s2 (2.2 mph/s) (service)
  • 1.3 m/s2 (2.9 mph/s) (emergency)
Electric system(s)750 V DC third rail
Current collector(s)Collector shoe
UIC classification2′2′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+2′2′
BogiesDuewag SF 2100[5][1][2]
Braking system(s)Westinghouse Brake & Signal electro-pneumatic, regenerative and rheostatic[2][8]
Safety system(s)
Coupling systemScharfenberg[1][2]
Track gauge1,435 mm (4 ft 8+12 in) standard gauge

The Kawasaki Heavy Industries (KHI) C151 is the first generation electric multiple unit (EMU) rolling stock in operation on the North–South and East–West lines of Singapore's Mass Rapid Transit (MRT) system, manufactured by a consortium led by Kawasaki Heavy Industries (KHI) under Contract 151. They were first introduced in 1987 and are the oldest trains in operation on the network.

Sixty-six trainsets consisting of six cars each and a single money train set consisting of four cars were contracted in 1984. They were manufactured from 1986 to 1989 in two batches by a Japanese consortium consisting of the namesake Kawasaki, Nippon Sharyo, Tokyu Car Corp and Kinki Sharyo following a round of intense competitive bidding by international rolling stock manufacturers.

The trains underwent a two-year mid-life interior refurbishment programme by Hyundai Rotem. After the 2011 major train disruptions on 15 and 17 December 2011, further plans to upgrade its mechanical components to increase its reliability were made. The first trainset to receive this upgrade, which included a replacement traction system to PMSM, entered service in July 2015.

The R151 trains have been replacing all of the first-generation C151 trains since June 2023, with the latter to be entirely superseded by 2026.[12]

  1. ^ a b c Cite error: The named reference jp-parts was invoked but never defined (see the help page).
  2. ^ a b c d e Dhaliwal, Ray (8 July 1986). "A milestone for the fast track". Straits Times. NewspaperSG (NLB). p. 7. Archived from the original on 7 January 2022. Retrieved 7 January 2022.
  3. ^ Cite error: The named reference mitsui was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference 22NSEWL was invoked but never defined (see the help page).
  5. ^ a b c d "First Class Bogies" (PDF). Siemens. Archived from the original (PDF) on 22 July 2019.
  6. ^ "Mitsubishi Electric of Japan has won a contract worth over S$100m to provide the propulsion system for Singapore's Mass Rapid Transit (MRT) trains". Textline Multiple Source Collection. 9 June 1984.
  7. ^ Cite error: The named reference toshiba-pmsm was invoked but never defined (see the help page).
  8. ^ Sherwell, Chris (15 June 1984). "World Trade News: UK group wins Singapore order for braking system". Financial Times. p. 5.
  9. ^ Woodland, Daniel (August 2004). "Optimisation of Automatic Train Protection Systemstion Systems" (PDF). p. Appendix C Page 32 to Page 33. Archived (PDF) from the original on 15 June 2020. Retrieved 15 June 2020.
  10. ^ "THALES Urban Rail Signalling Singapore – North-South / East-West Lines" (PDF). Archived (PDF) from the original on 15 June 2020. Retrieved 16 June 2020.
  11. ^ Fang, Joy (2 February 2012). "Coming: $600m upgrade for MRT system/New train measures a 'catch-up'". My Paper. pp. A2, A6. Archived from the original on 18 May 2015. Retrieved 13 May 2015.
  12. ^ Chelvan, Vanessa Paige (15 October 2024). "First-generation trains have service life of 38 years, will be replaced by end-2026: Chee Hong Tat". The Straits Times. ISSN 0585-3923. Retrieved 23 October 2024.


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