In September 2017 the transformer of 92016 was found to have been cracked and the locomotive dragged away for storage. When working from the overhead wires the 25 kV AC power must be converted to 1370 volt AC so that it can be used by a class 92 locomotives traction motors. This is done by the transformer which is positioned underneath the locomotive towards the cab 2 end of the common zone but much of it is obscured by the batteries and transformer tank filled with oil used for cooling and insulation.
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