LRTA 2000 class
The LRTA 2000 class, also known by the Light Rail Transit Authority as the Rotem/Toshiba Megatren Model 2003, is a class of electric multiple units of the Light Rail Transit Authority (LRTA) in Metro Manila, Philippines, which began operation in 2003. It is used in Line 2. Purchase. In line with the construction of Line 2, 72 cars (18 sets) were produced by Hyundai Rotem between 2002 and 2003. The trains were built in Uiwang, Gyeonggi-do, South Korea. The carbody was made by Hyundai Rotem, and the electric components were made by Toshiba. The trains  were provided by the Asia-Europe MRT Consortium (AEMC), a consortium of Marubeni Corporation, Balfour Beatty, Toshiba, Daewoo Heavy Industries, and D.M. Consuji Incorporated (DMCI). The AEMC signed the Package 4 contract in 2000, in which includes the communications and fares systems, vehicles, and trackworks. The first batch of trains consisting of 4 sets (16 cars) arrived in November 2002, while the remaining 14 sets were delivered in the next months. Design. Car body. The car body is made of stainless steel, and the under frame shares the similar material with LAHT steel. The trains sport a livery of yellow  and purple cheatlines. The upper yellow lines represent mango, the unofficial national fruit. The thicker purple lines are based from the ube, and it sports a geometric ethnic design. The trains have round front ends, which bears resemblance to the 2nd-generation trains of Seoul Metro Line 1, Line 4, and Bundang Line; these EMUs are also manufactured by Rotem (or then KOROS). Each car has two roof-mounted air-conditioning units manufactured by Carrier that has a cooling capacity of per hour. In total, there are eight air-conditioning units in a single train set. Trains prominently use wrap  advertising. Interior. The inner train space is lined with melamine and/or polyester faced ply metal. The windows are tinted safety glass, and the longitudinal seats are made of fiberglass reinforced plastics. The seats have a length of . The flooring is of stainless steel keystone plate and a thick, nonslip covering. Open gangways are present in between cars with a width of . In 2017, some trains are retrofitted with the Passenger Assist Railway Display System (now known as TUBE), a passenger information system powered by LCD screens installed near the inner ceiling of the trains that shows news, advertisements, current train  location, arrivals and station layouts. However, as of 2022, the LCD screens remain switched off. Mechanical. Each car has two bolsterless bogies underneath the car with an axle length of . The distance between bogie centers is . The primary suspension consists of an elastomeric spring and the secondary suspension is a diaphragm air spring. Mechanical Shibata couplers are present at the ends of the driver cabs, along with anti-climbers above it. Semi-permanent couplers are present in between cars (non-cab ends). Traction and auxiliaries. The traction system consists of VVVF inverters controlled by IGBT semiconductors. Two alternating current induction  motors with a power output of are mounted on each bogie. The original VVVF controller and propulsion system is supplied by Toshiba, while the new VVVF controller and propulsion system done during the refurbishment period of three train sets is supplied by Woojin Industrial Systems. The auxiliaries consist of 3,300 V static inverters and 110 V DC batteries. Formation. The configuration of a four-car trainset is Mc-M-M-Mc. Details of the car designations are listed below: Operations. The trains have been in use since the opening of the LRT Line 2 in 2003. However, by 2014, 12  out of the 18 sets remained in service. By May 2019, the number of operational trains were reduced to 8 sets following a collision incident involving two train sets, and by October 2019, the number of operational trains in the line were reduced to 5 due to power supply limitations following a power trip incident. By July 2021, operational trains were increased to six after the Line 2 East Extension opened, with five trains used in the original line and one train as a shuttle train along the east extension stations as the signalling integration works of the east extension  stations to the railway's existing systems were not completed at that time. By September 3 of the same year, these have increased to 8 sets after the completion of signalling integration works of the east extension stations to the railway's existing systems. Currently, eight trains are operational, while the other trains are being repaired/overhauled or awaiting spare parts. Train upgrades and refurbishments. On April 16, 2018, the Light Rail Transit Authority signed a contract with Multi-Scan Corporation and MRail, Inc. for the replacement of 80 air-conditioning units in 10 train sets. It used parts from  the original equipment manufacturer of the air-conditioning units, Carrier Corporation. The replacement of air-conditioning units started on March 7, 2019 and was completed on May 24. Rehabilitation of three train sets started on March 3, 2021. The current maintenance provider of LRT Line 2, a joint venture of Autre Porte Technique Global Inc., Multi-Scan Corporation, and Opus Land Inc., started the installation of new train propulsion systems and train monitoring systems from manufacturer Woojin Industrial Systems in three trains in order for those trains to return to service ahead of the original scheduled opening of the east  extension in April 2021. Trainsets 09, 14, and 17 were the train sets refurbished. The refurbishment was completed in the same year.