Kawasaki Heavy Industries C151

Kawasaki Heavy Industries (KHI) 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
In service	7 November 1987 – Present
Manufacturer	Kawasaki (with Nippon Sharyo, Tokyu Car Corporation, and Kinki Sharyo)
Built at	Kobe, Japan
Constructed	1986 – 1989
Entered service	7 November 1987
Refurbished	Hyundai Rotem (with Mitsui); 2006 – 2008
Scrapped	June 2020 –
Number built	396 Vehicles (66 Sets)
Number in service	294 Vehicles (49 Sets)
Successor	Alstom Movia R151
Formation	6 cars per trainset; DT–M1–M2+M2–M1–DT
Fleet numbers	001/002 – 131/132 (regular six-car trains); 301/302 (four-car money train);
Capacity	1920 passengers 372 seats (as built); 208 seats (refurbishment);
Operators	SMRT Trains (SMRT Corporation)
Depots	Bishan; Ulu Pandan; Tuas; Changi;
Lines served	NSL North–South Line; EWL East–West Line;
Specifications
Car body construction	Aluminium-alloy double-skinned construction
Train length	138.5 m (454 ft 4+3⁄4 in)
Car length	23.65 m (77 ft 7 in) (DT); 22.8 m (74 ft 10 in) (M);
Width	3.2 m (10 ft 6 in)
Height	3.69 m (12 ft 1+1⁄4 in)
Doors	1,450 mm (57+1⁄16 in), 8 per car
Wheel diameter	850–775 mm (33.5–30.5 in) (new–worn)
Wheelbase	2,500 mm (98 in)
Maximum speed	90 km/h (56 mph) (design); 80 km/h (50 mph) (service);
Weight	217 t (214 long tons; 239 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 load	16 t (16 long tons; 18 short tons)
Traction system	As built: Mitsubishi GTO–4-quadrant chopper control; Upgraded: Toshiba IGBT–VVVF;
Traction motors	As built: 16 × Mitsubishi 145 kW (194 hp) 2-phase DC shunt-wound motor (1 hour rating: 375 V 430 A 2050 rpm); Upgraded: Toshiba permanent-magnet synchronous motor;
Power output	As built: 2.32 MW (3,111 hp)
Transmission	Westinghouse-Natal (WN) drive; gear ratio: 6.57 : 1 (92 / 14)
Acceleration	1 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 classification	2′2′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+2′2′
Bogies	Siemens SF 2100
Braking system(s)	Westinghouse Brake & Signal electro-pneumatic, regenerative and rheostatic
Safety system(s)	Original: Westinghouse Brake and Signal Company FS2000 ATP fixed block ATC under ATO GoA 2 (STO), with subsystems of ATP and ATS; Current: Thales SelTrac® moving block CBTC ATC under ATO GoA 3 (DTO), with subsystems of ATP, NetTrac ATS and CBI;
Coupling system	Scharfenberg
Track gauge	1,435 mm (4 ft 8+1⁄2 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.

^ ^a ^b ^c Cite error: The named reference jp-parts was invoked but never defined (see the help page).
^ ^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.
^ Cite error: The named reference mitsui was invoked but never defined (see the help page).
^ Cite error: The named reference 22NSEWL was invoked but never defined (see the help page).
^ ^a ^b ^c ^d "First Class Bogies" (PDF). Siemens. Archived from the original (PDF) on 22 July 2019.
^ "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.
^ Cite error: The named reference toshiba-pmsm was invoked but never defined (see the help page).
^ Sherwell, Chris (15 June 1984). "World Trade News: UK group wins Singapore order for braking system". Financial Times. p. 5.
^ 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.
^ "THALES Urban Rail Signalling Singapore – North-South / East-West Lines" (PDF). Archived (PDF) from the original on 15 June 2020. Retrieved 16 June 2020.
^ 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.

Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).

[jp-parts-1] Cite error: The named reference jp-parts was invoked but never defined (see the help page).

[st-parts-2] 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.

[mitsui-3] Cite error: The named reference mitsui was invoked but never defined (see the help page).

[22NSEWL-4] Cite error: The named reference 22NSEWL was invoked but never defined (see the help page).

[bogie-5] "First Class Bogies" (PDF). Siemens. Archived from the original (PDF) on 22 July 2019.

[tmsc9jun84-6] "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.

[toshiba-pmsm-7] Cite error: The named reference toshiba-pmsm was invoked but never defined (see the help page).

[9] Sherwell, Chris (15 June 1984). "World Trade News: UK group wins Singapore order for braking system". Financial Times. p. 5.

[Westinghouse_FS2K-10] 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.

[thales_seltrac_SG_Brochure-11] "THALES Urban Rail Signalling Singapore – North-South / East-West Lines" (PDF). Archived (PDF) from the original on 15 June 2020. Retrieved 16 June 2020.

[thales-12] 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.

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