The Korail Class 371000 trains are commuter

electric multiple units An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a number ...

South Korea South Korea, officially the Republic of Korea (ROK), is a country in East Asia. It constitutes the southern half of the Korea, Korean Peninsula and borders North Korea along the Korean Demilitarized Zone, with the Yellow Sea to the west and t ...

used on the

Gyeonggang Line The Gyeonggang Line (경강선) is a rail line in South Korea, which at present comprises two distinct sections. The first one, which opened on September 24, 2016, is part of the Seoul Metropolitan Subway system in Gyeonggi Province, South Ko ...

Technical details

Electrical parts

All trains use

IGBT An insulated-gate bipolar transistor (IGBT) is a three-terminal power semiconductor device primarily forming an electronic switch. It was developed to combine high efficiency with fast switching. It consists of four alternating layers (NPNP) that ...

controls and use passive cooling with a

heat pipe A heat pipe is a heat-transfer device that employs phase transition to transfer heat between two solid interfaces. At the hot interface of a heat pipe, a volatile liquid in contact with a thermally conductive solid surface turns into a vapor ...

. The trains are also equipped with

regenerative braking Regenerative braking is an energy recovery mechanism that slows down a moving vehicle or object by converting its kinetic energy or potential energy into a form that can be either used immediately or stored until needed. Typically, regenerativ ...

, reducing energy consumption and simplifying train inspection, and they use electric door motors. All trains use LED headlights. There is a third headlight in the same compartment that houses the train run number and destination sign.

Interior design

Cabin

The Class 371000 trains share the same cabin design with the 2016 batch of the 3rd generation Class 311000 trains (trains 311-95~311-99). Stop notifiers are installed, as are TGIS color displays. Dead section notifiers are also installed.

Formation

The Class 371000 trains are organized in the following formation: TC-M'-M'-TC The symbols are defined below. * M' car: Pantograph, main transformer, controller, motor * TC car: Secondary power device, air compressor, battery, cabin The cars of each train are numbered to correspond to the type of car each car is: 3710XX - Tc (SIV, air compressor, battery) 3711XX - M' (pantograph, transformer, inverter) 3712XX - M' (pantograph, transformer, inverter) 3719XX - Tc (SIV, air compressor, battery)

Depot

The Class 371000 trains are stored at the Bubal train depot.

Trains

The Class 371000 trains are numbered 371-01~371-12. Delivery of the trains began on February 19, 2016, and continued until August 19, 2016.