The VSC power supply is used to supply VSC operation control power Basic InfoContact Us The VSC power supply is used to supply VSC operation control power, operation function are DCO/SCO command model, *sturdiness *reliability *long life * no maintenance 1. control voltage 110-130V DC/AC OR 220-250V DC/AC OR special 88-124V DC/AC for Nuclear power project. 2. DCO or SCO modle We guarantee that all products are from the original ABB. Fill out my online form. Use Wufoo templates to make your own HTML forms.