Kawasaki Heavy Industries & CSR Qingdao Sifang 151A

Kawasaki Heavy Industries & CSR Qingdao Sifang C151A are the fourth generation of trains running on the North South Line and the East West Line.

22 trainsets of 6 cars each were awarded to Kawasaki Heavy Industries and CSR Qingdao Sifang by the Land Transport Authority. In 2013, a further order of 13 trainsets was placed and as of 2014, all 35 trainsets have been officially put into revenue service.

Fleet

C151A Fleet Info

History

On May 6, 2009, the Land Transport Authority announced that Kawasaki Heavy Industries and CSR Qingdao Sifang had won over Hyundai Rotem, Bombardier Transportation and Mitsubishi Heavy Industries to secure the contract at a cost of S$369 million, despite Hyundai Rotem offering the lowest bid at S$323 million for the order of 22 trainsets. CSR Sifang handled the manufacturing and testing of the rolling stock, while Kawasaki oversaw the project and design. The C151A contract was the first successful joint venture between these two companies in the international market.

Equipment

Main Propulsion Controller

The C151A trains is the third 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-phrase AC induction type, model MLR109, with a maximum output of 140 kW.

Bogies

The C151A trains uses the monolink axlebox type bolsterless air spring bogie. There are no major technical difference between a trailer and motor car bogie other than additional electrical components for the latter.

Auxiliary systems

A break from tradition, the C151A trains features auxiliary inverters for its electrical systems on all six cars of the train. Previously, auxiliary inverters are mounted only on motor cars. The VVVF Inverter is controlled by IGBT semiconductors and rated at 80 kVA. A battery charger is built with the inverter and provides 16 kW output.

Design

Exterior design

The C151A trains are similar to the C751B trains in terms of exterior looks, and have an identical propulsion motor sound. The only obvious difference comes from the front of the C151A trains. From the front, the train spotted a 'smiley face' curve design unlike the C751B trains which has a straight design. It also uses a yellow colour LED displays for Train Run Numbers while the C751B uses a orange.

Interior design

The interior of a C151A trains was however similar to the C151 trains. However, the C151A trains feature a light-color tone seats unlike the C151 counterpart. There are also 5 LED blinking light instead of 3 in the centre of the doors to warn passengers that the train doors are closing. Another notable difference is that the C151A was the first train to feature a much ticker grab poles.

SMRT Active Route Map Information System

C151As went into service with STARIS installed.

Trainset numbers

The car numbers of the trains range from x501 to x570, 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 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.
  • For example, train 501/502 would consist of 6 cars with serial number 3501, 1501, 2501, 2502, 1502 and 3502 respectively.

References

• Trains
• Trains in Depots