{{Short description|Passenger train in Taiwan}} {{use dmy dates|date=July 2021}} {{Infobox train | background = #101084 | name = EMU900 series | image = TRA ED9092 at Platform 2B, Baifu Station 20220313.jpg | imagealt = | caption = EMU909 at {{stnlnk|Baifu}} in March 2022 | interiorimage = 2021.04.01 總統出席「EMU900型空調通勤電聯車」首航典禮 - 51083998163.jpg | interiorimagealt = | interiorcaption = Interior of an EMU900 train | service = 2021–present | manufacturer = Hyundai Rotem | designer = MBD Technologies | factory = Changwon, South Korea | family = | replaced = | yearconstruction = 2020–2023 | yearservice = {{start date|df=yes|2021|4|6}} | refurbishment = | numberbuilt = 520 vehicles (52 sets) | numberservice = 520 vehicles (52 sets) | formation = 10 cars per trainset | fleetnumbers = EMU901–EMU952 | capacity = | operator = Taiwan Railway Corporation | depots = | lines = | carbody = Stainless steel | trainlength = {{convert|205.56|m|ftin|frac=16|abbr=on}} | carlength = {{plainlist| * {{convert|21.58|m|ftin|frac=16|abbr=on}} (ED) * {{convert|20.3|m|ftin|frac=16|abbr=on}} (EM/EP) }} | width = {{convert|2.89|m|ftin|frac=16|abbr=on}} | height = {{plainlist| * {{convert|3.99|m|ftin|frac=16|abbr=on}} (ED/EM) * {{convert|4282|mm|ftin|frac=16|abbr=on}} (EP) }} | floorheight = | platformheight = | entrylevelorstep = | doors = | wheeldiameter = | wheelbase = {{convert|2.3|m|abbr=on}} | maxspeed = {{plainlist| * {{convert|140|km/h|abbr=on}} (design) * {{convert|130|km/h|abbr=on}} (service) }} | weight = | axleload = | steep gradient = | traction = Toshiba COV098-B0 IGBT–C/I<ref>{{cite web |title=Announcement of an order for traction system electrical equipment for commuter trains for Taiwan Railways Administration |url=https://www.toshiba.co.jp/infrastructure/en/news/20190115.htm |website=Toshiba |access-date=2020-11-02 |date=2019-01-15}}</ref> | traction motors = 20 × Toshiba SEA-449 {{convert|220|kW|abbr=on}} asynchronous 3-phase AC | poweroutput = {{convert|4.4|MW|abbr=on}} | tractiveeffort = | gearratio = 6.105 : 1 | acceleration = {{plainlist| * {{convert|0.7|m/s2|abbr=on}} ({{convert|0|–|50|km/h|abbr=on}}) * {{convert|0.4|m/s2|abbr=on}} ({{convert|50|–|110|km/h|abbr=on}}) * {{convert|0.2|m/s2|abbr=on}} ({{convert|110|–|130|km/h|abbr=on}}) }} | deceleration = | aux = | powersupply = | hvac = | electricsystem = {{25 kV 60 Hz}} (nominal) from overhead catenary | collectionmethod = Pantograph | uicclass = 2′2′+Bo′Bo′+2′2′+Bo′Bo′+Bo′Bo′+2′2′+Bo′Bo′+2′2′+Bo′Bo′+2′2′ | wheels driven = | bogies = RE2320B | minimum curve = | brakes = | safety = | coupling = Tightlock/Janney | multipleworking = | light = | seating = | gauge = {{track gauge|1067mm|lk=on}} | notes = }}

The '''EMU900 series''' is a series of electric multiple unit passenger trains operated by Taiwan Railway Corporation. Manufactured in South Korea by Hyundai Rotem, the trains are used on Local and Fast Local services, which stop at most stations. They entered service on 6 April 2021.

== History == The EMU900 series were purchased by the then Taiwan Railways Administration as part of an effort to replace its aging rolling stock, specifically the ''Chu-Kuang'' and ''Fu-Hsing'' services, and to increase the carrying capacity of the system. In 2017, the Ministry of Transportation and Communications approved an approximately NT$100&nbsp;billion plan to replace 990 rail vehicles, or 39.15% of all vehicles, by 2024.<ref>{{cite news |title=台鐵千億購新車 2024年完成車隊更新 |url=https://www.rti.org.tw/news/view/id/374367 |access-date=2020-11-02 |agency=Radio Taiwan International |date=2017-10-16 |language=zh-tw}}</ref><ref>{{cite news |author1=李姿慧 |title=著火莒光號車齡36年 台鐵：2020年起汰換 |url=https://tw.appledaily.com/life/20180606/4VF4O2UYOEF37GXAYMDFEV5ZCU/ |access-date=2020-11-02 |agency=Apple Daily |date=2018-06-06 |language=zh-tw}}</ref> The plan included 520 electric commuter railcars, 600 intercity railcars (EMU3000 series), 107 diesel locomotives, and 60 electro-diesel railcars. As the only bidder, South Korea's Hyundai Rotem was contracted for building the commuter railcars for NT$25.7&nbsp;billion.<ref>{{cite news |author1=鄭瑋奇 |title=台鐵區間車案完成評選委員會議 預期由韓商得標 |url=https://news.ltn.com.tw/news/life/breakingnews/2442054 |access-date=2020-11-02 |agency=Liberty Times |date=2018-05-30 |language=zh-tw}}</ref> This marks the first contract given to Hyundai Rotem since 1999.<ref name="gazette">{{cite news |title=Hyundai Rotem to supply 52 EMUs to Taiwan |url=https://www.railwaygazette.com/asia/hyundai-rotem-to-supply-52-emus-to-taiwan/46561.article |access-date=2020-11-02 |agency=Railway Gazette International |date=2018-06-04}}</ref>

The trains were built in Hyundai Rotem's Changwon plant.<ref name="gazette"/> The first two trainsets were delivered to the Port of Hualien on 24 October 2020, and began special passenger services between Shulin and Keelung from 1 April 2021, between Shulin and Hualien on 5–6 April as an additional service during the Qingming Festival,<ref>{{cite news |author1=曹悅華 |title=台鐵最美區間車 4月1日首航 |url=https://udn.com/news/story/7266/5299909 |access-date=2021-03-21 |agency=United Daily News |date=2021-03-07 |language=zh-tw}}</ref> and eventually on 6 April as an ordinary local train between Keelung and Miaoli.<ref>{{cite news |author1=俞肇福 |title=台鐵最美區間車今啟航 4/6起投入基隆─苗栗疏運 |url=https://news.ltn.com.tw/news/life/breakingnews/3486758 |access-date=2021-04-05 |agency=Liberty Times |date=2021-04-01 |language=zh-tw}}</ref> Hyundai Rotem plans on delivering all trainsets by 2023.<ref>{{cite news |author1=張祈 |title=台鐵最美新通勤電聯車抵台 預計2021年春節前上路 |url=https://www.cna.com.tw/news/firstnews/202010240085.aspx |access-date=2020-11-02 |agency=Central News Agency |date=2020-10-24 |language=zh-tw}}</ref>

== Design == The exterior of the train is designed by MBD Technologies, a French company involved with the design of the TGV. The design is based around the concept of "a smiling welcome".<ref>{{cite news |author1=曹悅華 |title=史上最美區間車將交車！最快明年1月底營運 新功能看過來 |url=https://udn.com/news/story/7266/4889763 |access-date=2020-11-02 |agency=United Daily News |date=2020-09-26 |language=zh-tw}}</ref> Each train is composed of ten cars, which is longer than its predecessors. According to the TRA, the EMU900 series is equipped with train control and management system (TCMS), which provide centralized controls for the doors, air conditioning, and fire safety equipment aboard the train. Additionally, the train's lighting can adjust automatically based on the exterior brightness to conserve electricity. The train's interior features twelve bicycle racks, priority seats for pregnant women, eight wheelchair spaces, and three restrooms.<ref>{{cite news |title=臺鐵局通勤生力軍 EMU900型電聯車將交車 |url=https://tw.stock.yahoo.com/news/%E8%87%BA%E9%90%B5%E5%B1%80%E9%80%9A%E5%8B%A4%E7%94%9F%E5%8A%9B%E8%BB%8D-emu900%E5%9E%8B%E9%9B%BB%E8%81%AF%E8%BB%8A%E5%B0%87%E4%BA%A4%E8%BB%8A-011942205.html |access-date=2020-11-02 |agency=慈善新聞網 |publisher=Yahoo! |date=2020-10-18 |language=zh-tw}}</ref><ref>{{cite news |author1=李姿慧 |title=獨家｜史上最美區間車本周抵台 10節車廂僅3廁所淪憋尿列車 |url=https://tw.appledaily.com/life/20201020/BLVBK5MM4FFQRJA7RCZKWPOS3I/ |access-date=2020-11-02 |agency=Apple Daily |date=2020-10-20 |language=zh-tw}}</ref>

==Controversies== On 1 June 2021, EMU901 was temporarily withdrawn from service due to abnormal signaling within its power system.<ref>{{cite news |title=「最美區間車」上路不到2個月就故障 肇因電力系統訊號回饋異常 |url=https://tw.appledaily.com/life/20210601/TXDG7TNOPRDB7OXMS7FMTKOPOE/ |date=2021-06-01}}</ref> In November 2021 the EMU900 series attracted controversy due to water leakage from the air conditioning units,<ref>{{cite news |title=台鐵最美區間車大漏水惹議 作怪空調機竟是「中國貨」 |url=https://udn.com/news/story/7266/5879419 |date=2021-11-10}}</ref> which is a very common problem in this set up with roof mounted AC units. Investigations revealed that the air conditioning units were supplied by a German firm with factories in China, acting as subcontractor to the car builder, which was technically against contract terms as China is not a signatory to the WTO GPA (Government Procurement Agreement).

== Formations == {| class="wikitable" summary="EMU900" style="text-align: center; font-size:80%;" |- | style="background:#ccc; width:6em;" |&nbsp; | colspan="10" | {{TrainDirection|{{stnlnk|Pingtung}}, Kaohsiung|{{stnlnk|Keelung}}, {{stnlnk|Hualien}}|EMU900}} |-style="border-top:solid 5px #8EC31C ! style="width:6em;" | Car position | style="width:6em;" | 1 | style="width:6em;" | 2 | style="width:6em;" | 3 | style="width:6em;" | 4 | style="width:6em;" | 5 | style="width:6em;" | 6 | style="width:6em;" | 7 | style="width:6em;" | 8 | style="width:6em;" | 9 | style="width:6em;" | 10 |-style="border-top:solid 5px #8EC31C ! Pantograph | | | style="text-align: right;" | > | | | style="text-align: left;" | < | | style="text-align: left;" | < | | |- ! Car type | 50ED9xx 1<br />(Tc) | 45EM9xx 1<br />(M) | 45EP9xx 1<br />(T) | 50EM9xx 2<br />(M) | 45EM9xx 3<br />(M) | 45EP9xx 2<br />(T) | 50EM9xx 4<br />(M) | 45EP9xx 3<br />(T) | 45EM9xx 5<br />(M) | 50ED9xx 2<br />(Tc) |- ! Electrical equipment | SIV | VVVF, Rc | Mtr, VCB, CP, ACP | VVVF, Rc, SIV | VVVF, Rc | Mtr, VCB, ACP | VVVF, Rc, SIV | Mtr, VCB, CP, ACP | VVVF, Rc | SIV |- ! Other features | 18px16x16px | 20px | | | 16x16px | 20px20px | | | 20px | 18px 16x16px |- ! Weight (t) | 50 | 45 | 45 | 50 | 45 | 45 | 50 | 45 | 45 | 50 |- ! Seating capacity | 30 | 44 | 54 | 56 | 48 | 20<br/>(8 wheelchair spaces) | 56 | 54 | 44 | 30 |- ! Numbering | 50ED901 1<br />:<br />50ED952 1 | 45EM901 1<br />:<br />45EM952 1 | 45EP901 1<br />:<br />45EP952 1 | 50EM901 2<br />:<br />50EM952 2 | 45EM901 3<br />:<br />45EM952 3 | 45EP901 2<br />:<br />45EP952 2 | 50EM901 4<br />:<br />50EM952 4 | 45EP901 3<br />:<br />45EP952 3 | 45EM901 5<br />:<br />45EM952 5 | 50ED901 2<br />:<br />50ED952 2 |- |}

Key:

* VVVF: Motor * Rc: Rectifier * Mtr: Transformer * VCB: Vacuum circuit breaker * SIV: Static inverter * CP: Air compressor (main pump) * ACP: Auxiliary air compressor (assisted pump) * 16px: Control cab (1st and 10th cars), crew room (5th car) * 20px: Toilet * 20px: Disabled facilities (wheelchair space and disabled toilet) * 15px: Bike rack

=== Exterior === <gallery mode="nolines"> File:TRA ED902 1.jpg|50ED900 1 (1st car) File:TRA EM902 1.jpg|45EM900 1 (2nd car) File:TRA EP902 1.jpg|45EP900 1 (3rd car) File:TRA EM902 2.jpg|50EM900 2 (4th car) File:TRA EM902 3.jpg|45EM900 3 (5th car) File:TRA EP902 2.jpg|45EP900 2 (6th car) File:TRA EM902 4.jpg|50EM900 4 (7th car) File:TRA EP902 3.jpg|45EP900 3 (8th car) File:TRA EM902 5.jpg|45EM900 5 (9th car) File:TRA ED901 2.jpg|50ED900 2 (10th car) </gallery>

==See also== * EMU600 series * {{commonscat-inline|TRA EMU900}}

== References == {{reflist}} {{Taiwanloco}}

Category:Electric multiple units of Taiwan Category:Hyundai Rotem multiple units Category:25 kV AC multiple units Category:Train-related introductions in 2021