British Rail Class 84

Ranked #84 on the list Best Locomotive class of All Time

Based on 4 votes

About British Rail Class 84

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The British Rail Class 84 was a 25 kV AC electric locomotive that operated on the West Coast Main Line of the London Midland Region. As part of the modernization of the West Coast Main Line, which included electrification, 100 locomotives of five types were acquired from different manufacturers. Ten Class AL4 locomotives numbered E3036 - E3045 were built in 1960 to a design by GEC by the North British Locomotive Company in Springburn, Glasgow. The locomotives always worked on power provided by overhead catenary energized at 25,000 V AC. However, the main transformer, normally operated with the four windings in series, could be operated at 6250V AC with the transformer windings in parallel. This voltage was initially to be used where limited clearances gave concern over use of the higher voltage. Problems with the mercury-arc rectifiers plagued this class and in 1962 E3036 was returned to GEC, the builder of the electrical equipment, in an attempt to find a solution. Within a year, all ten were out of service for repair. The problems persisted and in 1967 they were once more placed into storage, along with Class AL3. During this time E3043 went to Rugby Testing Centre for

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