Difference between revisions of "Alstom Metropolis 751A"

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: ''Not to be confused with [[Kawasaki Heavy Industries & Nippon Sharyo C751B]] and [[Alstom Metropolis C751C]].''
{{Infobox/Train
{| class="toccolours" style="float: right; border-collapse: collapse; margin: 0em 1em;" border="1" cellpadding="2" cellspacing="0"
|Name=Alstom Metropolis 751A
| colspan="2" style="text-align:center" | <big><strong>Alstom Metropolis C751A<br>阿尔斯通 C751A</strong></big>
|Img=[[File:C751A-Ext(1).png|center-left|160px]] [[File:C751A-Int(1).png|center-right|160px]]<br>[[File:C751A-Ext(2).png|center-left|160px]] [[File:C751A-Int(2).png|center-right|160px]]
|-
|Info1=
| colspan="2" style="text-align:center"|[[Image:C751A front.jpg|center|300px]] A C751A train in Sengkang Depot.
{{Infoline|In service|2003 – Present}}
|-
{{Infoline|Manufacturer|Alstom}}
! In service
{{Infoline|Origin|Valenciennes, France}}
| 20 June 2003 - Current
{{Infoline|Constructed|2000 – 2001}}
|-
{{Infoline|Refurbishment|2019 – Present<br>CRRC Nanjing Puzhen}}
! Manufacturer
{{Infoline|Number Built|150 cars (25 Trains)}}
| Alstom
|Info2=
|-
{{Infoline|Body Construction|Welded aluminium}}
! Built at
{{Infoline|Length|23.65 m (DT)<br>22.8 (Mp/Mi)}}
| Valenciennes, France
{{Infoline|Width|3.2 m}}
|-
{{Infoline|Height|3.7 m}}
! Family name
{{Infoline|Doors|1.45 m, 8 per car}}
| Metropolis
{{Infoline|Maximum Speed|Design: 100 km/h<br>Service: 90 km/h}}
|-
{{Infoline|Traction Control|IGBT-VVVF (Alstom ONIX)}}
! Constructed
{{Infoline|Line Voltage|1500V DC Overhead Catenary}}
| 2000 - 2003
{{Infoline|Track Gauge|1435 mm Standard Gauge}}
|-
}}
! Number built
 
| Passenger service: 150 carriages (25 trains)
'''Alstom Metropolis 751A''' are the first generation of trains running on the {{NEL}}.
|-
 
! Formation
==History==
| 6 per trainset<br>TC - M - M - M - M - TC
The trains on the North East Line are powered by overhead catenary, a first in history. Rolling stock on all the other operating lines are powered by a third rail because the authorities considered overhead wires to be unsightly and did not allow for trains to be powered using this method on elevated lines. Since this line is the first to be fully underground, the authorities had a choice between powering the trains on this line by overhead catenary or third rail.<ref>[//www.tsd.org/cbtc/projects/SIG_Singapore_AutomaticMetro_en.pdf  "Singapore Northeast Line: will soon be the largest, fully automatic metro system in the world"]</ref>.
|-
 
! Capacity
===Refurbishment===
| 1920 passengers<br>296 seats
In December 2018, the Land Transport Authority (LTA) had awarded the contract worth about $116.7 million to CRRC Nanjing Puzhen for the refurbishment of 751A.<ref>[//www.lta.gov.sg/apps/news/page.aspx?c=2&id=f901e290-ad09-4d05-9309-c974aa26c0ae "Enhancement works for the North East Line to commence in 2019"]. Land Transport Authority (17 December 2018). Retrieved 25 December 2018.</ref> The trains' interior, such as seats, panels, and flooring, will be replaced whereas the air-conditioning & ventilation systems will be upgraded. The trains will also be retrofitted with new passenger information displays. The first refurbished train was completed in 2022 and works on the remaining trains are expected to be completed by 2024.
|-
 
! Operator
==Design/Features==
| SBS Transit
{| class="toccolours" border=1 style="text-align:center;"
|-
|-class="SBST"
! Depot(s)
!class="LTA"|
| [[Sengkang Depot|Sengkang]]
!colspan=2|Initial
|-
!Refurbished
! Line(s) served
| [[North East Line]]
|-
| style="background:#efefef;" align="center" colspan="2"| <strong>Specifications</strong> 
|- 
! Car body<br>construction
| Welded aluminium
|-
|-
! Car length
!
| 23.65 m (TC)<br>22.8 (M)
|colspan=2|<div class="train">{{TrainCar|DT|6964BE|left}} {{TrainCar|Mp|6964BE}} {{TrainCar|Mi|6964BE}} {{TrainCar|Mi|6964BE}} {{TrainCar|Mp|6964BE}} {{TrainCar|DT|6964BE|right}}</div>
|colspan=2|<div class="train">{{TrainCar|DT|9B5992|left}} {{TrainCar|Mp|9B5992}} {{TrainCar|Mi|9B5992}} {{TrainCar|Mi|9B5992}} {{TrainCar|Mp|9B5992}} {{TrainCar|DT|9B5992|right}}</div>
|-style="background-color:#DDD"
!colspan=4|Exterior Design
|-
|-
! Width
!style="text-align:left"|Livery
| 3.2 m
|colspan=3|Black,Red,Purple,White (Top to bottom)
|-
|-
! Height
!style="text-align:left"|Train Run Number
| 3.7 m
|colspan=3|Orange LED
|-style="background-color:#DDD"
!colspan=4|Interior Design
|-
|-
! Floor height
!rowspan=2 style="text-align:left"|Seating Capacity
| 1.1 m
!Original!!Bar Train
|rowspan=2|240
|-
|-
! Doors
|296||240
| 1.4 m, 8 per car
|-
! Maximum speed
| 100 km/h
|-
|-
! Weight
!style="text-align:left"|Wheelchair Bay
| 35000 kg
|colspan=3|2, 1 each at Third and Fourth Car
|-
|-
! Acceleration
!style="text-align:left"|Door Closing Indicator Lights
| 1.1 m/s<sup>2</sup>
|colspan=3|1 Yellow Alert Light (Top)
|-
|-
! Deceleration
!style="text-align:left"|Passenger Information System
| 1.4 m/s<sup>2</sup> (Emergency)
|colspan=2|Visual Passenger Information System (LED display<span style='color:#888;'><s> + LCD screen</s></span>)
|Visual Passenger Information System<br>Dynamic Route Map Display
|-style="background-color:#DDD"
!colspan=4|System
|-
|-
! Traction system
!style="text-align:left"|Safety System
| IGBT-VVVF<br>(Alstom ONIX 1500)
|colspan=3|ATC, ATO, ATP, ATS
|-
|-
! Engine(s)
!style="text-align:left"|Signalling System
| Three-phase induction motor (S120-3380)<br>140kW 550V 193A 1760rpm
|colspan=3|Communication Based Train Control
|-
|-
! Electric system(s)
!style="text-align:left"|Traction Control
| 1500 V AC Overhead catenary
|colspan=3|IGBT-VVVF (Alstom ONIX)
|-
|-
! Bogies
| 16 t per axle
|-
! Safety system(s)
| Alstom's MASTRIA ATP and ATO<br>Alstom's URBALIS ATC/CBTC
|-
! Gauge
| 1,435 mm Standard gauge
|}
|}


'''Alstom Metropolis C751A''' is the first generation of communication-based train control (CBTC) rolling stock to be used in Singapore’s [[Mass Rapid Transit (Singapore)|Mass Rapid Transit]] (MRT) lines.
==Fleet Numbering==
 
The car numbers of the trains range from 7x001 to 7x050, where x depends on the carriage type.
==History==
*The second digit identifies the position of the car from the closest end of the train; where ‘1’ represents first car, ‘2’ represents second car and ‘3’ represents third car.
In 1997 and 1998, the Land Transport Authority (LTA) awarded the contract for the supply of [[North East Line]] trains to Alstom.
**(Example) Passenger Vehicle 7049/7050 would consist of 6 cars with serial number 71049, 72049, 73049, 73050, 72050 and 71050 respectively.
 
*Depending on the direction of travel, the sequence may be reversed.
A development in Singapore's MRT history, the trains on the North East Line are powered by overhead catenary, in contrast with the other trains on all other lines in Singapore which are powered by a third rail as the authorities consider overhead wires to be unsightly which does not allow for elevated line trains to be powered. Being the first fully underground line in Singapore, the authorities had a choice between powering the North East Line trains by overhead catenary or third rail.<ref>[http://www.tsd.org/cbtc/projects/SIG_Singapore_AutomaticMetro_en.pdf  "Singapore Northeast Line: will soon be the largest, fully automatic metro system in the world"]</ref> An overhead catenary power supply was decided upon.  
 
==Fleet==
[[C751A Fleet Info]]
 
==Operation==
The C751A trains run on an automated system (without attendant), relying on "continuous two-way digital communication" between each controlled train and the control centre that controls the entire line.
 
==Features==
===Liquid Central Displays (LCD)===
Six LCDs are installed at the overhead panel in each carriage that show advertisements, route information, silent commercials and movie trailers as well as safety videos. All units have ceased from showing commercials due to the lack of demand.
 
===Platform Gap Width Reduction (PGWR)===
To prevent passenger accidents due to the platform gap, additional metal strips were installed (only on 7029/7030) at the edge of every door to narrow the platform gap.
 
===Visual Passenger Information System (VPIS)===
Two VPIS are installed in each carriage that provides commuters with their route information throughout their journey. <ref>[http://www.stee.com.sg/pdf/railway_systems/VPIS_Eng.pdf Visual Passenger Information System for Singapore MRT and LRT lines]</ref>
==Trainset numbers==
Individual cars are given a five-digit serial number by the rail operator, SBS Transit, numbers ranging from 7x001 to 7x050, whereby "x" depends on the carriage type.
 
* The first digit is always a 7.
* The second digit denotes the carriage of the train, with 1, 2 and 3.
* The third digit is always a 0.
* The last 2 digits are used as the train identification number.


==References==
==References==
<references/>
<references/>


==Related Links==
*[[Trains]]
*[[Trains in Depots]]
{{Mass Rapid Transit}}
{{Mass Rapid Transit}}
{{North East Line}}


[[Category:Trains]]
[[Category:Train Rolling Stock]]
[[Category:Train Rolling Stock]]

Latest revision as of 15:12, 17 June 2023

Alstom Metropolis 751A
center-left center-right
center-left center-right
*Graphic From SGTrains/Wikipedia/LTA
In service 2003 – Present
Manufacturer Alstom
Origin Valenciennes, France
Constructed 2000 – 2001
Refurbishment 2019 – Present
CRRC Nanjing Puzhen
Number Built 150 cars (25 Trains)
Statistics
Body Construction Welded aluminium
Length 23.65 m (DT)
22.8 (Mp/Mi)
Width 3.2 m
Height 3.7 m
Doors 1.45 m, 8 per car
Maximum Speed Design: 100 km/h
Service: 90 km/h
Traction Control IGBT-VVVF (Alstom ONIX)
Line Voltage 1500V DC Overhead Catenary
Track Gauge 1435 mm Standard Gauge

Alstom Metropolis 751A are the first generation of trains running on the North East Line.

History[edit]

The trains on the North East Line are powered by overhead catenary, a first in history. Rolling stock on all the other operating lines are powered by a third rail because the authorities considered overhead wires to be unsightly and did not allow for trains to be powered using this method on elevated lines. Since this line is the first to be fully underground, the authorities had a choice between powering the trains on this line by overhead catenary or third rail.[1].

Refurbishment[edit]

In December 2018, the Land Transport Authority (LTA) had awarded the contract worth about $116.7 million to CRRC Nanjing Puzhen for the refurbishment of 751A.[2] The trains' interior, such as seats, panels, and flooring, will be replaced whereas the air-conditioning & ventilation systems will be upgraded. The trains will also be retrofitted with new passenger information displays. The first refurbished train was completed in 2022 and works on the remaining trains are expected to be completed by 2024.

Design/Features[edit]

Initial Refurbished
DT Mp Mi Mi Mp DT
DT Mp Mi Mi Mp DT
Exterior Design
Livery Black,Red,Purple,White (Top to bottom)
Train Run Number Orange LED
Interior Design
Seating Capacity Original Bar Train 240
296 240
Wheelchair Bay 2, 1 each at Third and Fourth Car
Door Closing Indicator Lights 1 Yellow Alert Light (Top)
Passenger Information System Visual Passenger Information System (LED display + LCD screen) Visual Passenger Information System
Dynamic Route Map Display
System
Safety System ATC, ATO, ATP, ATS
Signalling System Communication Based Train Control
Traction Control IGBT-VVVF (Alstom ONIX)

Fleet Numbering[edit]

The car numbers of the trains range from 7x001 to 7x050, where x depends on the carriage type.

  • The second digit identifies the position of the car from the closest end of the train; where ‘1’ represents first car, ‘2’ represents second car and ‘3’ represents third car.
    • (Example) Passenger Vehicle 7049/7050 would consist of 6 cars with serial number 71049, 72049, 73049, 73050, 72050 and 71050 respectively.
  • Depending on the direction of travel, the sequence may be reversed.

References[edit]

  1. ↑ "Singapore Northeast Line: will soon be the largest, fully automatic metro system in the world"
  2. ↑ "Enhancement works for the North East Line to commence in 2019". Land Transport Authority (17 December 2018). Retrieved 25 December 2018.
icon Mass Rapid Transit [ V • T • E ]
Overview History • Stations • Fare and Ticketing • Facilities • Safety • Security
Lines North–South Line • East–West Line • North East Line • Circle Line • Downtown Line • Thomson–East Coast Line
FutureJurong Region Line • Cross Island Line
Rolling Stocks 151 • 151A • 151B • 151C • R151 • T251 • 651 • 751A • 751B • 751C • 830 • 830C • 851E • 951
FutureJ151 • CR151
Depots Bishan • Changi • Gali Batu • Kim Chuan • Mandai • Sengkang • Ulu Pandan • Tuas
FutureChangi East • East Coast • Tengah
icon North East Line [ V • T • E ]
Stations HarbourFront • Outram Park • Chinatown • Clarke Quay • Dhoby Ghaut • Little India • Farrer Park • Boon Keng • Potong Pasir • Woodleigh • Serangoon • Kovan • Hougang • Buangkok • Sengkang • Punggol
North East Line extension: Punggol Coast
Rolling Stock 751A • 751C • 851E
Depots Sengkang
Others Bridging Service
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