Electro-diesel multiple unit
Hybrid overhead line-/fossil fuel engine-powered passenger train / From Wikipedia, the free encyclopedia
Not to be confused with Diesel-electric multiple unit (DEMU).
An electro-diesel multiple unit (EDMU) or bi-mode multiple unit (BMU) is a form of a multiple unit train that can be powered either by electric power picked up from the overhead lines or third rail (like an electric multiple unit – EMU) or by using an onboard diesel engine, driving an electric generator, which produces alternating current (AC) or direct current (DC) electric power (like a diesel-electric multiple unit – DEMU).[1][2]
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