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Original Text (Annotation: EPW047484 / 2165741)
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Electricity transmission line to the substation. Originally power came from the LYR generating Station at Clifton Junction (1916 - 1933) and was transmitted to Radcliffe substation at high voltage (6.6 kv alternating current). The substation housed three transformers (6.6 kv to 1.2 kv), and three rotary convertors (motor-generator sets) together supplying current at 1200 volts DC to the trains. There were also 580 battery cells for use as an auxiliary backup in the event of a mains failure. Clifton Power Station was closed down in 1933 and current was then taken from the National Grid supply which had been set up in 1926. ( Details taken from 'An Illustrated Historical Survey of the Railways In And Around Bury' by Jeffrey Wells) '