Electrical substations

thumb|upright=1.5|Elements of a substation thumb|View of a 50 Hz electrical substation in Australia, showing three 220 kV/66 kV (150kVA) transformers. Steel lattice structures support strain bus wires and apparatus, and high-voltage transformer fire barriers|transformer fire barriers prevent catastrophic failure of any one transformer from damaging adjacent units.

electrical substation for railways, trams or trolleybuses