KTM Class 83

Last updated
Class 83
Class 83 KTM Komuter train, Kuala Lumpur.jpg
A Class 83 EMU Komuter train.
In service1996–present
Manufacturer Hyundai Precision and Marubeni
RefurbishedWoojin Industrial Systems (2018–) [1]
Number built66 cars (22 sets)
Number scrapped24 cars (8 sets)
Formation3 per trainset
Capacity406 (216 seats)
Operators Keretapi Tanah Melayu
Depots
Lines served
Specifications
Car body constructionStainless steel
Train length68.4 m (224 ft 5 in)
Car length
  • 22.2 m (72 ft 10 in) (end cars)
  • 23.2 m (76 ft 1 in) (intermediate cars)
Width2.75 m (9 ft 0 in)
Height3,855 mm (12 ft 7.8 in)
Floor height1.1 m (3 ft 7 in)
Doors3 double-leaf pneumatic sliding doors per side
Maximum speed
  • 160 km/h (99 mph) (design)
  • 120 km/h (75 mph) (service)
Weight123 t (121 long tons; 136 short tons)
Traction system Mitsubishi Electric GTOVVVF
Traction motors 8 × Mitsubishi Electric MB-5069-A 150 kW (200 hp) 3-phase AC induction motor [2]
Power output1,200 kW (1,600 hp)
Electric system(s) 25 kV 50 Hz AC overhead catenary
Current collector(s) Brecknell Willis pantograph
UIC classification Bo′Bo′+2′2′+Bo′Bo′
Braking system(s) single-pipe regenerative braking system
Track gauge 1,000 mm (3 ft 3+38 in) metre gauge

The Class 83 is a type of electric multiple unit operated by Keretapi Tanah Melayu on its KTM Komuter services. 22 sets were built by Hyundai Precision and Marubeni of South Korea and Japan respectively, in 3-car formations. [3]

Contents

The KTM class 83 3-car formation consists of two motor cabs at either end of the set and a single trailer car in between, the trailer car in between is equipped with a Brecknell Willis pantograph for electric pick up. Narrow gangways integrate the 3-car sets. Each car features 3 double-leaf pneumatic sliding doors at either side which is the KTM class 83 the highest density of doors per rail-car in Malaysia.

Over the years, the KTM class 83 has been overhauled a number of times and its interior refurbished, however its interior layout, of longitudinal seating, has remained the same throughout it service life. However, four sets of class 83 has been refurbished for the KTM Skypark Link. The colour also changed from blue and yellow to orange and grey colour.

With the withdrawal of Adtranz/Walkers EMU for the Ampang Line, the KTM Class 83 is now the second oldest electric multiple unit in Malaysia after KTM Class 81.

Design

The class 83 was designed with a streamlined sloped head with a large as per the front windows with two high beam lamps concentrated at the center top part of the cavity with two standard headlights at either bottom sides, later changed to LED lights in 2016. An AAR coupling system is used, and this is compatible with all of KTMB's modern rolling stock. Route direction is indicated on the top-right front of the train within a confined fluorescent lighted box using a lightly transparent plastic which is built integrated with the window shell, later replaced with LED destination indicator's in 2010. The drivers cab features a dedicated access to outside on top of the door access to the passenger area. The class 83 cab head is designed to be bottom heavy with the bulk of the power transformers located beneath the coach with full use of the top for passenger use, power traction motors are contained within the bogie itself. In terms of safety, the front outer frame is made of heavy carbonized steel, that is capable of sustaining high impact, same as KTM Class 82.

Unlike the latter class 92, [4] the class 83 like its sister classes are endowed with multi-layered tempered glass that is of a higher degree of impact resistance.

The class 83 has a top speed of 140 km/h (87 mph), at the time of launch this was similar to the top speed of the other classes but significantly faster than the railbuses that were in use at the time. During normal operation, 120 km/h (75 mph) was the typical top speed with the average speed being around 45 km/h (28 mph). Compared to the other classes, the class 83 was found to have the best acceleration among the 8x classes, and this is due to the Mitsubishi regenerative braking system being used which gave efficient energy conservation during braking and reasonable acceleration during runs.

Formations

A refurbished Skypark Link Class 83 at the Subang Jaya station. Skypark Link at Subang Jaya.jpg
A refurbished Skypark Link Class 83 at the Subang Jaya station.
Set DesignationCar NumberStatus
Car 1Car 2Car 3
EMU 19C8301T8301C8302In Service
EMU 20C8303T8302C8304Scrapped
EMU 21C8305T8303C8306Scrapped
EMU 22C8307T8304C8308In Service
EMU 23C8309T8305C8310In Service
EMU 24C8311T8306C8312In Service
EMU 25C8313T8307C8314In Service
EMU 26C8315T8308C8316In Service
EMU 27C8317T8309C8318Scrapped
EMU 28C8319T8310C8320In Service
EMU 29C8321T8311C8322In Service
EMU 30C8323T8312C8324In Service
EMU 31C8325T8313C8326In Service
EMU 32C8327T8314C8328In Service
EMU 33C8329T8315C8330In Service
EMU 34C8331T8316C8332Scrapped
EMU 35C8333T8317C8334In Service
EMU 36C8335T8318C8336Scrapped
EMU 37C8337T8319C8338Scrapped
EMU 38C8339T8320C8340Scrapped
EMU 39C8341T8321C8342In Service
EMU 40C8343T8322C8344In Service

Accidents and incidents

On 1 November 2013, EMU19 derailed near Rawang station while moving through a track switch. No one was hurt in the incident. The two rear coaches were separated and towed away using a locomotive while the remaining front coach removed by use of cranes. [5]

On 4 September 2020, EMU29 was side swiping by KTM Class 93 near Kuang Komuter station, Selangor. No fatalities report. [6]

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References

  1. Barrow, Keith (26 April 2018). "Woojin to upgrade Malaysian EMUs". International Railway Journal. Retrieved 7 July 2018.
  2. "Our Business". Majestic Engineering Sdn Bhd.
  3. "KOMI". ktmkomuter.com.my. KTM Komuter. Archived from the original on 29 April 2010. Retrieved 29 January 2012.
  4. Kaos, Joseph. "New trains vandalised". The Star Online. The Star. Retrieved 8 July 2012.
  5. patrick lee. "KTM Komuter train derails near Rawang station (Updated)". TheStar. Retrieved 1 November 2013.
  6. https://www.nst.com.my/amp/news/nation/2020/09/622884/ets-side-swiping-ktm-commuter-train-report-be-out-soon