Siemens C651
| Siemens C651 | |
|---|---|
|
A C651 train approaching Jurong East. | |
|
Inside the centre motor car of a Siemens C651 train. | |
| In service | 20 September 1994 - present |
| Manufacturer | Siemens |
| Built at | Vienna, Austria |
| Constructed | 1993–1994 |
| Refurbishment | 2016–2018 |
| Number built | 114 Vehicles (19 Trainsets) |
| Number in service | 114 Vehicles (19 Trainsets) |
| Formation |
6 per trainset DT–M1–M2–M2–M1–DT |
| Fleet numbers | 201/202 ~ 237/238 |
| Capacity |
1920 passengers 372/336 seats |
| Operator(s) | SMRT Trains (SMRT Corporation) |
| Depot(s) | Bishan, Changi, Tuas and Ulu Pandan |
| Line(s) served | North South Line and East West Line |
| Specifications | |
| Car body construction | Stainless steel construction |
| Car length | 23 m (75 ft 5 1⁄2 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) |
| Weight |
35 t (34 long tons; 39 short tons) (unladen) 53.8 t (53.0 long tons; 59.3 short tons) (laden) |
| Traction system |
Current: GTO–VVVF PWM (Siemens) Future: IGBT–VVVF (Toshiba)[1] |
| Traction motors |
Current: 16 x 140kWdd enclosed-ventilated lateral drive (Siemens) Future: Permanent Magnet Synchronous Motor (Toshiba) |
| Power output | 140 kW (190 hp) |
| Transmission | 5.94 : 1 Gear Ratio |
| Acceleration | 1.0 m/s (3.3 ft/s) |
| Auxiliaries | 110 V DC |
| Electric system(s) | 750 V DC third rail |
| Current collection method | Collector Shoe |
| UIC classification | 2'2' + Bo'Bo' + Bo'Bo' + Bo'Bo' + Bo'Bo' + 2'2' |
| Braking system(s) |
1st service brake: Self-excited, mixed service and resistor brake 2nd service brake: Pneumatic compressed air wheel tyre block brake Parking brake: Compressed air pressure spring-loaded brake |
| Safety system(s) |
Current: ATC, ATP and ATO Future: Thales SelTrac® CBTC/ATO, ATP, ATC, CBI |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) standard gauge |
The Siemens C651 trains form a type of rolling stock that can be found on the North South Line and East West Line of the Mass Rapid Transit system in Singapore. A total of 114 cars consisting of 19 trainsets were purchased in 1993 and introduced from 1994 onwards. This is the only fleet retaining the white exterior bodies (just like the C151 trains before refurbishment) that are used on the North South Line and the East West Line.
Overview
The C651 trains are the second generation of the four types of train cars used on the SMRT network. They were bought mainly to complement the existing C151 trains due to the opening of the Woodlands extension. These trains began revenue service in 1995 as the first trains were rolled out of Singapore plant fitted with Glastroch (Germany) windows to increase capacity on 17 July 1994 and delivered to SMRT on 20 September 1994. Unlike its older counterparts, the C651s are painted with a scratch-resistant acrylic finish due to dirt trapping on the aluminum skin of the C151 trains that were difficult to remove.
These cars come with green-blue tinted glass windows. They look almost identical to the first generation train cars before its refurbishment, except that its traction produces a louder, lower-pitched noise when accelerating/braking. However, the C651s will have their traction systems changed to the one currently used on the Tokyo Metro 16000 series trains, and so the special motor sounds of the C651s may walk into history. The run number display on the front of each train is made up of electronic green flip-dot display, as opposed to the manual plastic rollers of the Kawasaki Heavy Industries C151 trains, while the rubber strips between the doors are thicker. The trains have a full white body and a thick red stripe in the middle. Similar to the Kawasaki Heavy Industries C151 trains, the Siemens C651 trains have no visual passenger information systems, but have a built-in audio announcement system until the STARIS was installed and activated around 2010. Currently, these are the only trains that have white exterior bodies.
Operational details
Many experimental programmes have been run on the C651 cars, including the past program.
For the past program, the third and fourth cars, coloured in green were even more radical in the reconfiguration, with all but eight parts of seats, four at each ends of the car removed completely. In its place was standing room with upholstered cushion, in an attempt to provide a degree of comfort to passengers standing in that space. This design proved to be unpopular with the commuters, and it was eventually dropped. The original seats between the 1st and 2nd door, and the 3rd and 4th door on these cars have been replaced. The remaining upholstered seats were reverted to original seats in May 2006. All C151 trains had their seats on the middle part of carriage removed.
For now, some trains of this type were reconfigured to have more standing space in the late 1990s as part of an experimental programme. In particular, the second and fifth cars (the blue cars) were reconfigured to have more standing room on both sides, as 3 seats from some later cars.
More grabpoles were also added. Regular grabpoles in the centre of each car were replaced by grabpoles that branch out into three in the centre first in 2007, followed by triplicated hand grips and grab poles in 2014. Special non slip floorings were also tested.
Refurbishment
Refurbishment for these trains are awarded by Singapore Rail Engineering (SRE). It is expected to be refurbished in 2016. Trains will only be refurbished when the C151Bs begins revenue service in 2016. When completed in 2018, these upgrades will address train components such as doors and brakes that have been the primary cause of delays owing to train faults. The changes will include refurbishing the propulsion system, air-conditioning system, auxiliary power system, interior saloon and exterior of the trains.[2][3]
Train Formation
The configuration of a C651 in revenue service is DT-M1-M2-M2-M1-DT
| Cars of C651 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| car type | Driver Cab | Motor | Collector Shoe | car length | Wheelchair Space | |||||
| mm | ft in | |||||||||
| DT | ✓ | ✗ | ✓ | 23,650 | 77 ft 7 in | |||||
| M1 | ✗ | ✓ | ✓ | 22,800 | 74 ft 10 in | |||||
| M2 | ✗ | ✓ | ✓ | 22,800 | 74 ft 10 in | |||||
The car numbers of the trains range from x201 to x238, where x depends on the carriage type. Individual cars are assigned a 4 digit serial number by the rail operator SMRT Trains. 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 221/222 consists of carriages 3221, 1222, 2221, 2222, 1222 and 3222.
- 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 2, 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, one for the first 3 cars, and the same number plus 1, for the other three.
- Siemens built sets 201–238.
References
- ↑ Hoe, Pei Shan (5 July 2013). "Older MRT trains to get new motors from Japan". Straits Times. Retrieved 13 May 2015.
- ↑ "Older SMRT trains to get makeover for better ride". The Straits Times. 2013-05-15.
- ↑ http://www.smrt.com.sg/DoingBusiness/SingaporeRailEngineering/LocalProjects.aspx Siemens Trains Mid-Life Upgrading Project
External links
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Wikimedia Commons has media related to Mass Rapid Transit (Singapore)#Trains. |
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