EMU-320
ManufacturerHyundai Rotem
Built atChangwon, South Korea
Family nameKTX
Constructed2020–
Entered service2024
Number under construction31 sets
Number built2 sets
Formation8-car sets
TC-M-M-M-M-M-M-TC
Fleet numbers601–619
Capacity515–549 passengers
OperatorsKorail
Lines servedGyeongbu high-speed railway (planned)
Specifications
Car body constructionAluminium
Train length198 m (649 ft 7+1⁄4 in)
Width3.15 m (10+3⁄8 ft)
Height4,000 mm (13 ft 1+1⁄2 in)
Doors2 per side per end car, 1 per side per intermediate car
Maximum speed
  • 352 km/h (219 mph) (design)
  • 320 km/h (200 mph) (service)
Traction systemIGBT–VVVF
Traction motors24 × asynchronous 3-phase AC
Electric system(s)25 kV 60 Hz AC overhead catenary
Current collector(s)Pantograph
UIC classification2′2′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+Bo′Bo′+2′2′
Braking system(s)Eddy current, regenerative, rheostatic, disc, pneumatic
Safety system(s)TVM 430 (ATC), ATP, ATS
Coupling systemScharfenberg
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge

The EMU-320 is an upcoming South Korean high-speed electrical multiple unit train manufactured by Hyundai Rotem and operated by Korail and SR Corporation.

History

In September 2016, Korail held a contest for the public to decide the design of the new models.[1][2] After the development of HEMU-430X, Hyundai-Rotem and Korail signed an agreement in December 2016 for supplying high speed trains that are electric multiple units, the first of its kind in South Korea in commercial service (the HEMU-430X is also an electric multiple unit, but it is not for service and mass production). The order was for two variants: 2 eight-car EMU-320 units (with an operating speed of 320 km/h) and 19 six-car EMU-260 units, to be delivered around 2020–2021.[3][4][5] In 2017, a mockup of the chosen design was exhibited to the public to promote the sister train (EMU-260) and receive feedback.[6]

On March 28, 2022, it was reported that the EMU-320 consisting of 25 units for Korail and 19 units for SR Corporation were scheduled to be delivered from December 2023.[7] Elements of the EMU-320 had to be re-designed due to serious concerns about excessive noise levels in the cab and passenger compartments, a key reason for its delay. Measures including improving the pantograph's shape and adding sound insulation to the ceiling and floor have been taken to reduce noise levels. Hyundai-Rotem paid 19 billion won in damages for the delay in delivery.[8] In November 2023, Korail was to take deliveries and begin operations in 2024.[9]

Hyundai-Rotem built 2 pre-series sets following a 2016 contract, which are undergoing testing. The 17 trainsets ordered by Korail are scheduled to be delivered between April 2027 and March 2028.[10]

Design

Technology incorporated in these trains is derived from the experimental HEMU-430X train previously tested by Korail. The EMU-320 will feature the same design as KTX-Eum trains , however the formation will consists of eight cars as suppose to six cars.[1][2] Unlike KTX trains, the EMU-320 uses distributed traction with driving trailers at each end and six powered intermediate cars as opposed to traction heads configuration.[4][11]

Aerodynamic changes to the front of the train are claimed to offer 10% lower resistance compared to previous high speed trains in South Korea. Trains will be equipped with sliding steps to cater for high and low platform heights. Seats in both first and second class will be capable of being rotated to face the direction of travel from a single control unit.[10]

The train can accelerate from 0 to 300 km/h (0 to 186 mph) in 230 seconds, in contrast to 316 seconds for the KTX-Sancheon.[12]

Interior

Unlike KTX trains, the seats on EMU-320 features more leg room, wider armrests, USB ports, wireless charging pads, and entertainment display similar to the inflight entertainment system found on aircraft.[4] In addition, every seat is aligned with a window.[4]

See also

References

  1. 1 2 "Notice - Power Dispersion High Speed Vehicle Design Preference Survey (~9.15)". Korail (in Korean). November 6, 2019. Archived from the original on December 25, 2020. Retrieved November 17, 2020.
  2. 1 2 "국내 최초로 동력분산식 고속열차 도입?". Naver (in Korean). November 9, 2016. Archived from the original on December 25, 2020. Retrieved August 23, 2020.
  3. ↑ "Korail to receive distributed power E320 EMUs in 2019". Railway Gazette International. September 19, 2018. Archived from the original on August 15, 2020. Retrieved August 22, 2020.
  4. 1 2 3 4 "시속 421km로 달리다! 동력분산식 고속차량 '해무' HEMU-430X". Hyundai Rotem Blog (in Korean). November 8, 2017. Archived from the original on November 4, 2019. Retrieved November 17, 2020.
  5. ↑ "적자 허덕이는데...코레일에 고속열차 강매한 국토부". SBS News (in Korean). October 8, 2017. Archived from the original on December 25, 2020. Retrieved August 23, 2020.
  6. ↑ "2020년 도입되는 차세대 고속열차! 출고식을 앞둔 EMU-250". Hyundai Rotem Blog (in Korean). August 29, 2019. Archived from the original on August 12, 2020. Retrieved August 23, 2020.
  7. ↑ Geum, Jun-hyuk (March 28, 2022). "탄소중립 바람타고 친환경 열차 달린다...속도는↑ 탄소배출은↓" [Eco-friendly trains run on carbon-neutral winds... The speed is ↑ The carbon emission is ↓] (in Korean). News1. Retrieved June 11, 2022 – via Naver.
  8. ↑ "[단독] "청력장애 생길 수준" 차세대 KTX '이음-320' 굴욕" [[Exclusive] "Level of hearing impairment" Next-generation KTX 'EMU-320' humiliation]. n.news.naver.com (in Korean). Retrieved July 6, 2022.
  9. ↑ 조선비즈 (November 7, 2023). "[시승기] 내년부터 운행될 3.5세대 KTX… 'EMU-320' 타보니". 조선비즈 (in Korean). Retrieved January 3, 2024.
  10. 1 2 Zelki, Benjámin (September 11, 2023). "South Korea: Next-generation high speed trains on test". Railway Gazette International. Retrieved January 3, 2024.
  11. ↑ "고속열차 더 빨라진다...코레일, 300km/h 넘는 차세대 차량 구매". ET News (in Korean). October 25, 2016. Archived from the original on December 25, 2020. Retrieved August 23, 2020.
  12. ↑ "철도 경쟁 시대... 코레일, 차세대 고속철로 승부". Chosun News (in Korean). November 11, 2016. Archived from the original on December 25, 2020. Retrieved August 23, 2020.
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