What is MR electric units?
The [[Midland Railway]] (MR) experimented with [[Railway electrification system|electrification]] on its [[Heysham]]-[[Morecambe]]-[[Lancaster, Lancashire|Lancaster]] line. Electric trains started to run over this route in 1908. The system used was 6,600 [[Volt]], 25 [[Utility frequency|Hz]] [[alternating current]] from [[overhead lines]]. Power was generated at the MR's own [[power station]] in Heysham. {{British Rail EMU}} {{transport-stub}} [[Category:British Rail electric multiple units|MR]]