For our test bay we need an adjustable transformer with three-phases and low losses to continually adjust the voltage. The voltage should be adjusted by a pushbutton and a device should monitor it. Additionally it should be displayed if there is voltage on the three-phases. When connecting to the mains there may not be any current inrush and the three-phase variable ratio transformer has to be fused. The device should generate 160 kVA power for a short term of one minute.
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