Jabarkan Lihat pula dari Elektrifikasi perkeretaapian

Gomez-Exposito A., Mauricio J.M., Maza-Ortega J.M. "VSC-based MVDC Railway Electrification System" IEEE transactions on power delivery, v. 29, no. 1, Feb. 2014 pp. 422–431. (suggests 24 kV DC)