Kawasaki Heavy Industries & CRRC Sifang C151C

Kawasaki Heavy Industries & CRRC Qingdao Sifang C151C
A C151C train approaching Yishun station.
In service 30 September 2018 (2018-09-30) – Present
Manufacturer Kawasaki Heavy Industries
CRRC Qingdao Sifang
Built at Qingdao, Shandong, China
Constructed 2017–2019
Entered service 2018
Number built 72 vehicles (12 trainsets)
Number in service 18 vehicles (3 trainsets)
Formation 6 per trainset
DT–M1–M2–M2–M1–DT
Fleet numbers 701/702–723/724
Capacity 1920 passengers
Operator(s) SMRT Trains (SMRT Corporation)
Depot(s) Bishan
Tuas
Ulu Pandan
Changi (Future)
East Coast (Future)
Line(s) served  EWL  East West Line
 NSL  North South Line
Specifications
Car body construction Aluminium-alloy construction
Car length 23.5 m (77 ft 1 1⁄4 in)
Width 3.2 m (10 ft 6 in)
Height 3.7 m (12 ft 1 5⁄8 in)
Doors 1,450 mm (57 1⁄16 in), 8 per car
Maximum speed 90 km/h (56 mph) (design)
80 km/h (50 mph) (service)
Traction system Fuji Electric IGBT-VVVF
Electric system(s) 750 V DC third rail
Current collection method Collector shoe
Safety system(s) Thales SelTrac® Moving Block CBTC, ATC with subsystems of ATO GOA 3 (DTO), ATP, NetTrac ATS, CBI[1]
Track gauge 1,435 mm (4 ft 8 1⁄2 in) standard gauge

The trains manufactured by Kawasaki Heavy Industries & CRRC Qingdao Sifang[2] under Contract 151C (C151C) are the sixth generation of rolling stock to be introduced on the existing East West and North South lines of Singapore's Mass Rapid Transit (MRT) system. 12 trains were purchased and they will be delivered between 2017 and 2019, where these trains will be tested before the full service in 2019.[3][4] The first of the 12 trains was delivered on 27 October 2017. The interior design was unveiled on 28 February 2018 at the Tuas Depot with two trains showcased. 6 trainsets made their revenue service debut in 30 September 2018, with the remaining six in late-2018. When all trainsets are deployed on the NSEWL, it will bring the total number of trains operating on the NSEWL to 198 trainsets, up from the previous 186 trainsets. The first 3 C151C trainsets commenced revenue service on 30 September 2018 on the North-South Line.[5]

Tender

The tender for trains under the contract 151C was closed on 14 May 2015 with 3 bids. The LTA has shortlisted all of them and the tender results was published on 22 Sep 2015.[6][7]

S/N Name of tenderer Amount ($S)[7]
1 CRRC Zhuzhou Locomotive Co., Ltd. 134,608,695.70
2 Kawasaki Heavy Industries, Ltd. / Kawasaki Heavy Industries(Singapore) Pte Ltd & CRRC Qingdao Sifang Consortium 136,800,000.00 (Alternative)
3 Hyundai Rotem 136,799,928.00

Design

The C151C will be the first MRT rolling stock on the NSEWL to be fitted with fold-up seats.[8]

The C151C retains most of the features of the C151B trains, albeit with a different livery. It's the second train following LTA's recent changes to its livery regulations, incorporating green and red stripes against a white background, and the first trains on the North South and East West Lines to bear it. The front headlights have been replaced by LEDs but retained the placement like the C151B.

The C151C features a new Current Collector Device or Collector Shoe which can report information to the Train Integrated Management System (TIMS) if any of the Current Collector Device sheared off the bogie. As the Current Collector Device supplies power to the train via the third rail, it allows timely action to be taken if any of the Collector Shoe is dislodged.[9]

Equipment

Main propulsion controller

The C151C trains is the fifth commuter type Electric Multiple Unit (EMU) made in Japan to feature electric systems fully manufactured by Fuji Electric. Propulsion is controlled by VVVF Inverter with 2-level IGBT semiconductor controller, rated at 415 kVA. Each inverter unit controls two motors on one bogie (1C2M), and one motor car features two of such units. Motors are three-phase AC induction type, model MLR109, with a maximum output of 140 kW.

Train formation

The configuration of a C151C in revenue service is DT-M1-M2-M2-M1-DT

Cars of C151C
Car Type Driver Cab Motor Collector Shoe Car Length
mm ft in
DT✓✗✓ 23,830 78 ft 2.2 in
M1✗✓✓ 22,800 74 ft 9.6 in
M2✗✓✓ 22,800 74 ft 9.6 in

The car numbers of the trains range from x701 to x724, where x depends on the carriage type. Individual cars are assigned a 4 digit serial number. A complete six-car trainset consists of an identical twin set of one driving trailer(DT) and two motor cars(M1 & M2) permanently coupled together. For example, set 705/706 consists of carriages 3705, 1705, 2705, 2706, 1706 and 3706.

  • The first digit identifies the car number, where the first car has a 3, the second has a 1 & the third has a 2.
  • The second digit is always a 7, part of the identification numbers
  • The third digit and fourth digit are the train identification numbers. A full length train of 6 cars have 2 different identification numbers. For example, 705/706 (normal coupling) or 705/720 (cross coupling).

Doubts about the consortium

The award of the C151C turnkey contract to the Kawasaki Heavy Industries & CSR Qingdao Sifang consortium was briefly politicised in Singapore, when the defects from the relatively new C151A trains constructed by same consortium made public on 5 July 2016. This was after Gerald Giam from the Workers Party commenting through an official Facebook post doubting the decision by the Land Transport Authority to awarded the subsequent contracts, specifically both the design and supply of C151C and CT251 rail cars to the same consortium in 2015.[10] This was despite the Land Transport Authority and operator SMRT Trains being officially acknowledged on the C151A crack defects as early as 2013.[11][12]

Incidents

Originally, only 2 units were supposed to commence revenue service on 30 September 2018 on the NSL. However, 1 unit suffered from signalling faults after being launched on the line in less than a hour, and as a result the train was withdrawn back to Bishan Depot as a precautionary measure. A substitute train was then deployed to replace it.

References

  1. ↑ Fang, Joy (2 February 2012). "Coming: $600m upgrade for MRT system/New train measures a 'catch-up'". My Paper. pp. A2, A6. Retrieved 13 May 2015.
  2. ↑ "LTA Singapore Orders 12 MRT Trains (72 cars) for North-South/East-West Lines | Kawasaki Heavy Industries, Ltd". 29 April 2016. Archived from the original on 29 April 2016. Retrieved 8 June 2017.
  3. ↑ https://www.straitstimes.com/singapore/tip-up-seats-on-new-trains-to-allow-for-more-passenger-standing-room
  4. ↑ "Kawasaki Heavy Industries & CSR Qingdao Sifang C151C | Land Transport Guru". Land Transport Guru. 2016-02-29. Retrieved 2018-05-29.
  5. ↑ "New MRT trains with tip-up seats now in service". The Straits Times. 30 September 2018. Retrieved 30 September 2018.
  6. ↑ TENDER INFORMATION - Land Transport Authority, 22 Sep 2015
  7. 1 2 CONTRACT 151C - Land Transport Authority
  8. ↑ "12 More Trains to Boost Capacity of North-South and East-West Lines". Land Transport Authority. 22 September 2015.
  9. ↑ Howell, Steve B. Handbook of CCD Astronomy. Cambridge: Cambridge University Press. pp. 190–190. ISBN 9780511807909.
  10. ↑ So the vendor's dismal track record can become a point in their favour? - Gerald Giam Facebook page, 8 July 2016 9:35am (GMT+8)
  11. ↑ "Defects on SMRT trains 'not safety-critical', to be repaired by manufacturer: LTA". Retrieved 2016-07-05.
  12. ↑ "26 China-made MRT trains sent back to fix defects". The Straits Times. Retrieved 5 July 2016.
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