208 to 480 step up transformer3 phase step up transformer 240 to 480480 to 240 volt step down transformer3 phase transformer 480 to 240480 delta to 240 delta transformer480 to 240 step down transformer240 volt to 480 volt transformertransformer 240 to 480480 to 220 transformer480 to 277 transformertransformer 480 to 120480 to 208 transformer
