HPS offers three phase autotransformers that are available for applications where small voltage corrections are necessary in a distribution system. They are frequently used as an economical alternative to three phase general purpose distribution transformers to adjust the supply voltage to match specific load requirements when load isolation from the supply line is not required.600Y-480Y: 3-500kVA
600Y, 480Y - 400Y, 240Y, 208Y: 3-225kVA
240Y, 216Y - 208Y: 3-75kVA
60 Hz frequency (50/60 Hz on units with 380V primary)
Autotransformers can be used as either a step-up or step-down transformer.