Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
North Korean electric multiple unit
Juche
The Juche-class EMU at its unveiling after refurbishment.
Electric railcars had been used in Korea before the war by the Kŭmgangsan Electric Railway, and these were used by Korean State Railway until the line was destroyed during the Korean War, and no further electric railcars were used after that for many years. However, the opening of the P'yŏngyang Metro in 1973, along with worldwide attention on high-speed electric trainsets such as the Japanese Shinkansen put into service in 1964 and the ER200 class introduced by the Soviet Railways in 1974, led the Railway Ministry to direct efforts towards the development of an electric multiple unit for North Korea, resulting in the unveiling of North Korea's first electric trainset, the Juche-class EMU, in 3 March 1978 at Kim Jong Thae as part of the 200 day campaign. Externally, the four-car set was similar in appearance to the 181 series trainsets used by the Japanese National Railways on the Kodama limited express of the day; internally, despite all of North Korea's electrification being 3000 V DC, the Juche-class EMU was built for two-system operation - possibly with a view to future operation in South Korea, where 25 kV AC electrification was used.
The trainset was named 'Juche' by Kim Il Sung, in appreciation of the labour the workers of Kim Chong-t'ae locomotive works put into manufacturing it.
A second 4-car set was built in 1982, as part of the celebrations for Kim Il Sung's 70th birthday.
Operation
One of the set was refurbished, repainted, and put into use on a daily commuter service for scientists between P'yŏngyang and Paesanjŏm on June 23rd, 1998, timetabled to take one hour to cover the 38 km (24 mi) distance each way.
Philately
The train was featured on a stamp issued on 30 April 1987.
Semmens, Peter (1997). High Speed in Japan: Shinkansen - The World's Busiest High-speed Railway. Sheffield, UK: Platform 5 Publishing. ISBN1-872524-88-5.
Dymant, Yu., Скоростной поезд ЭР200, Наука и жизнь, issue 6, 1974, pp. 42-44
"새형의 지상전동차<주체>호를 만들었다". Rodong Sinmun. March 7, 1978. p. 1.
The Juche-class EMU at its unveiling after refurbishment.
Korean State Railway locomotives and rolling stock