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Siemens has long been a leader in the design and manufacture of voltage regulators. In 1932, Siemens' partner, Allis-Chalmers, pioneered the field of step voltage regulators. Since that time, Siemens has maintained technical leadership in the development of an extensive line of step voltage regulators and accessories.
Access maintenance manuals, tips and technical information on current and out of production T&D equipment.