Difference between revisions of "Kawasaki Heavy Industries & Nippon Sharyo 751B"

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{{Infobox/Train
{{Infobox/Train
|Name=Kawasaki Heavy Industries & Nippon Sharyo C751B
|Name=Kawasaki Heavy Industries & Nippon Sharyo 751B
|Img=[[File:ext.jpg|center|300px]]|Info1=
|Img=[[File:C751B-Ext(1).png|center-left|160px]] [[File:C751B-Int(1).png|center-right|160px]]
|Info1=
  {{Infoline|In service|2000 – Present}}
  {{Infoline|In service|2000 – Present}}
  {{Infoline|Manufacturer|Kawasaki Heavy Industries<br>Nippon Sharyo}}
  {{Infoline|Manufacturer|Kawasaki Heavy Industries<br>Nippon Sharyo}}
  {{Infoline|Origin|Japan}}
  {{Infoline|Origin|Kobe, Japan}}
  {{Infoline|Constructed|1999 - 2001}}
  {{Infoline|Constructed|1999 – 2001}}
  {{Infoline|Number Built|126 cars (21 Trains)}}
  {{Infoline|Number Built|126 cars (21 Trains)}}
|Info2=
|Info2=
Line 19: Line 20:
}}
}}


'''Kawasaki Heavy Industries & Nippon Sharyo C751B''' are the third generation of trains running on the [[North South Line]] and the [[East West Line]]. These electric multiple units were introduced since 2000. 21 trainsets consisting of six cars each were purchased. These trains are operated by SMRT Trains.
'''Kawasaki Heavy Industries & Nippon Sharyo 751B''' are the third generation of trains running on the {{NSL}} and the {{EWL}}. These trains were manufactured from 1999 to 2001 by Kawasaki Heavy Industries and Nippon Sharyo, with only 1 difference despite having built to agreed specifications.


These trains were manufactured from 1999 to 2001 by Kawasaki Heavy Industries and Nippon Sharyo. Despite having built to agreed specifications, only 1 visible differences could be found.
==History==
 
The KNS trains were bought mainly to complement the existing trains due to the opening of the Changi Airport Extension on the {{EWL|b=}}. These trains began revenue service in 2001.
==Fleet==
[[C751B Fleet Info]]


==History==
Some of the trains had luggage racks installed in every carriage of the train, taking up the space of two seats next to the door at the end of each carriage. The purpose of those racks were to let travellers heading to the airport, who usually carry a large amount of luggage, to have a space to place their bags easily.
The C751B trains were bought mainly to complement the existing trains due to the opening of the Changi Airport Extension on the East West Line. These trains began revenue service in 2001. Unlike its older counterparts, the C751B trains features a new livery which consist of mainly black and a more slanted and streamlined look.


Some of the C751B trains were also installed with luggage racks for travelers to place their bags easily as they travels to Changi Airport, but was subsequently removed when the through-train service was removed.
However, these luggage racks were always underutilised. Travellers preferred holding on to their bags where they were standing or sitting, as opposed to placing them on the luggage racks, probably due to convenience and fear of theft. Some commuters were also complaining that these racks took up critically needed space which could be occupied by other passengers which often filled the train. Furthermore, the through train service to Changi Airport was replaced by a shuttle service, dismissing the need to provide these racks for non-airport bound train services. Therefore, trains with the luggage racks had them removed in 2003, leaving an empty standing area, with a purpose of serving as a wheelchair area.


===Fragmented Gearbox===
===Fragmented Gearbox===
On 13 April 2002, a fault was detected in a C751B train and was subsequently withdrawn to the [[Changi Depot]] for investigations. As the trains was under warranty, engineers from the manufacturer inspect for fault and found metal fragments in gearbox. The fragmented gearbox was then replace with a new one flown in on 22 April. Further check on 23 April founded that the other 20 trains also have fragmented gearbox and the whole fleet was grounded until the fragmented gearbox was fixed. The first 8 trains was then returned to service in early May 2002. The last trains was then return to service in June 2002.
On 13 April 2002, a fault was detected in a train and was subsequently withdrawn to [[Changi Depot]] for investigations. As the train was under warranty, the engineers from the manufacturers of the train and gearbox were flown in on 21 April. They subsequently detected metal fragments in the gearboxes, as well as in those of the other 20 trains. SMRT immediately withdrew all 21 trains and suspended the through train service, replacing it with the shuttle service. Train frequencies were also adjusted until early May, when 8 trains returned to service. By the end of May 2002, all trains have been returned to service and the through service was resumed.<ref>[https://newslink.sg/user/OrderArticleRequest.action?documentId=nica_NP_2002_2407771&year=2002&month=04&date=23 "21 MRT trains withdrawn Longer wait for trains"]. The New Paper (23 April 2002). Retrieved 29 July 2018.</ref>


==Design==
===Replacement===
{| class="toccolours" border="1" style="border-collapse:collapse;"
On 28 September 2020, LTA announced that the 40 additional new trains had been ordered under Contract R151 from Bombardier Transportation to progressively replace KNS trains from 2024 onwards.<ref>[//www.lta.gov.sg/content/ltagov/en/newsroom/2020/september/news-releases/LTA_buys_40_new_trains.html "LTA Buys 40 New Trains for the North-South and East-West Lines"]. Land Transport Authority (28 September 2020).</ref>
|- style="background:#F00 !important;color:#FFF"
 
==Design/Features==
===Passenger Trains===
{| class="toccolours" border=1 style="text-align:center;border-collapse:collapse;"
|-class="SMRT"
!class="LTA"|
!Kawasaki Heavy Industries!!Nippon Sharyo
|-
!
!
!Kawasaki Heavy Industries!!Nippon Sharyo
|colspan=2|<div class="train">{{TrainCar|DT|E40078|left}} {{TrainCar|M1|0047AB}} {{TrainCar|M2|00CED1|4=000}} {{TrainCar|M2|00CED1|4=000}} {{TrainCar|M1|0047AB}} {{TrainCar|DT|E40078|right}}</div>
|- style="background-color:#DDD"
|-style="background-color:#DDD"
!colspan=3|Exterior Design
!colspan=3|Exterior Design
|- valign=top
|-
!style="text-align:left"|Livery
!style="text-align:left"|Livery
|colspan=2|Black,Red,Grey (Top to bottom)
|colspan=2|Black,Red,Grey (Top to bottom)
|- valign=top
|-
!style="text-align:left"|Train Run Number
!style="text-align:left"|Train Run Number
|colspan=2|Orange LED
|colspan=2|Orange LED
|- style="background-color:#DDD"
|-style="background-color:#DDD"
!colspan=3|Interior Design
!colspan=3|Interior Design
|- valign=top
|-
!style="text-align:left"|Colour Scheme
!style="text-align:left"|Seating Capacity
|colspan=2|Pinkish Purple (First,Last Car)<br>Light Blue (Second,Fifth Car)<br>Bluish-Green (Third,Fourth Car)
|276 (272 after signalling upgrade)||288 (284 after signalling upgrade)
|- valign=top
|-
!style="text-align:left"|Seats between Doors
|colspan=2|7
|- valign=top
!style="text-align:left"|Wheelchair Bay
!style="text-align:left"|Wheelchair Bay
|12, 2 each per car||6, 1 each per car
|12, 1 each at either end of a car||6, 1 each per car
|- valign=top
|-
!style="text-align:left"|Door Closing Indicator Lights
!style="text-align:left"|Door Closing Indicator Lights
|colspan=2|4 Red LED (Side)
|colspan=2|4 Red LED (Side)
|- style="background-color:#DDD"
|-
!style="text-align:left"|Passenger Information System
|colspan=2|Visual Passenger Information System (<span style='color:#888'><s>LED display + </s></span>LCD screen) (Disabled)<br>SMRT Active Route-map and Information System (Dynamic Route Map + VFD display)
|-style="background-color:#DDD"
!colspan=3|System
!colspan=3|System
|- valign=top
|-
!style="text-align:left"|Safety System
!style="text-align:left"|Safety System
|colspan=2|Automatic Train Control (ATC), Automatic Train Operation (ATO), Automatic Train Protection (ATP)
|colspan=2|ATC, ATO, ATP, ATS (after signalling upgrade)
|- valign=top
|-
!style="text-align:left"|Signalling System
!style="text-align:left"|Signalling System
|colspan=2|Current: Fixed Block<br>Future: Communication Based Train Control (CBTC)
|colspan=2|Fixed Block<br>Communication Based Train Control (after signalling upgrade)
|- valign=top
|-
!style="text-align:left"|Traction Motor
!style="text-align:left"|Traction Control
|colspan=2|Fuji Electric Self-Ventilated Three-Phase AC Induction Motor
|colspan=2|IGBT-VVVF (Fuji Electric)
|}
|}


==Trainset Numbering==
==Fleet Numbering==
*The car numbers of the trains range from x311 to x352, where x depends on the carriage type.
The car numbers of the trains range from x311 to x352, where x depends on the carriage type.
*The first digit depends upon whether the car is the first, second or third car from the end of the train it is nearer to, where the first car has a 3, the second has a 1 and the third has a 2.
*The first digit identifies the position of the car from the closest end of the train; where ‘3’ represents first car, ‘1’ represents second car and ‘2’ represents third car.
*The other 3 digits is the train identification number. A full length train of 6 cars have 2 different identification number, one for the first 3 cars, and the same number plus 1, for the other three. The smaller number is always at the front.
**(Example) Passenger Vehicle 351/352 would consist of 6 cars with serial number 3351, 1351, 2351, 2352, 1352 and 3352 respectively.
**For example, trainset 351/352 would consist of 6 cars with serial number 3351, 1351, 2351, 2352, 1352 and 3352 respectively.
*Depending on the direction of travel, the sequence may be reversed.
*Depending on the direction of travel, the sequence may be reversed.
==Gallery==
<gallery>
File:redint.jpg|C751B cab cars interior
File:blueint.jpg|C751B second and fifth cars interior
File:greenint.jpg|C751B middle cars interior
File:C751B_343344_BUILDERPLATE.jpeg|C751B Kawasaki Heavy Industries Builder Plate
</gallery>


==References==
==References==
Line 93: Line 89:


{{Mass Rapid Transit}}
{{Mass Rapid Transit}}
{{North–South Line}}
{{East–West Line}}


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

Latest revision as of 15:12, 17 June 2023

Kawasaki Heavy Industries & Nippon Sharyo 751B
center-left center-right
*Graphic From SGTrains/Wikipedia/LTA
In service 2000 – Present
Manufacturer Kawasaki Heavy Industries
Nippon Sharyo
Origin Kobe, Japan
Constructed 1999 – 2001
Number Built 126 cars (21 Trains)
Statistics
Body Construction Aluminium-alloy double-skinned construction
Length 23.83 m (DT)
22.8 m (M1/M2)
Width 3.2 m
Height 3.7 m
Doors 1.45 m, 8 per car
Maximum Speed Design: 90 km/h
Service: 80 km/h
Traction Control IGBT-VVVF (Fuji Electric)
Line Voltage 750V DC Third Rail
Track Gauge 1435 mm Standard Gauge

Kawasaki Heavy Industries & Nippon Sharyo 751B are the third generation of trains running on the North–South Line and the East–West Line. These trains were manufactured from 1999 to 2001 by Kawasaki Heavy Industries and Nippon Sharyo, with only 1 difference despite having built to agreed specifications.

History[edit]

The KNS trains were bought mainly to complement the existing trains due to the opening of the Changi Airport Extension on the East–West Line. These trains began revenue service in 2001.

Some of the trains had luggage racks installed in every carriage of the train, taking up the space of two seats next to the door at the end of each carriage. The purpose of those racks were to let travellers heading to the airport, who usually carry a large amount of luggage, to have a space to place their bags easily.

However, these luggage racks were always underutilised. Travellers preferred holding on to their bags where they were standing or sitting, as opposed to placing them on the luggage racks, probably due to convenience and fear of theft. Some commuters were also complaining that these racks took up critically needed space which could be occupied by other passengers which often filled the train. Furthermore, the through train service to Changi Airport was replaced by a shuttle service, dismissing the need to provide these racks for non-airport bound train services. Therefore, trains with the luggage racks had them removed in 2003, leaving an empty standing area, with a purpose of serving as a wheelchair area.

Fragmented Gearbox[edit]

On 13 April 2002, a fault was detected in a train and was subsequently withdrawn to Changi Depot for investigations. As the train was under warranty, the engineers from the manufacturers of the train and gearbox were flown in on 21 April. They subsequently detected metal fragments in the gearboxes, as well as in those of the other 20 trains. SMRT immediately withdrew all 21 trains and suspended the through train service, replacing it with the shuttle service. Train frequencies were also adjusted until early May, when 8 trains returned to service. By the end of May 2002, all trains have been returned to service and the through service was resumed.[1]

Replacement[edit]

On 28 September 2020, LTA announced that the 40 additional new trains had been ordered under Contract R151 from Bombardier Transportation to progressively replace KNS trains from 2024 onwards.[2]

Design/Features[edit]

Passenger Trains[edit]

Kawasaki Heavy Industries Nippon Sharyo
DT M1 M2 M2 M1 DT
Exterior Design
Livery Black,Red,Grey (Top to bottom)
Train Run Number Orange LED
Interior Design
Seating Capacity 276 (272 after signalling upgrade) 288 (284 after signalling upgrade)
Wheelchair Bay 12, 1 each at either end of a car 6, 1 each per car
Door Closing Indicator Lights 4 Red LED (Side)
Passenger Information System Visual Passenger Information System (LED display + LCD screen) (Disabled)
SMRT Active Route-map and Information System (Dynamic Route Map + VFD display)
System
Safety System ATC, ATO, ATP, ATS (after signalling upgrade)
Signalling System Fixed Block
Communication Based Train Control (after signalling upgrade)
Traction Control IGBT-VVVF (Fuji Electric)

Fleet Numbering[edit]

The car numbers of the trains range from x311 to x352, where x depends on the carriage type.

  • The first digit identifies the position of the car from the closest end of the train; where ‘3’ represents first car, ‘1’ represents second car and ‘2’ represents third car.
    • (Example) Passenger Vehicle 351/352 would consist of 6 cars with serial number 3351, 1351, 2351, 2352, 1352 and 3352 respectively.
  • Depending on the direction of travel, the sequence may be reversed.

References[edit]

  1. ↑ "21 MRT trains withdrawn Longer wait for trains". The New Paper (23 April 2002). Retrieved 29 July 2018.
  2. ↑ "LTA Buys 40 New Trains for the North-South and East-West Lines". Land Transport Authority (28 September 2020).
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