Improvements in Cascade Potential Transrormers

This paper describes a new cascade potential transformer which exhibits improved characteristics and utilization of materials as compared with a prior cascade design and with conventional potential transformers. Modifications responsible for these advances include major changes in the magnetic and electric circuits as well as in the mechanical parts. Features of the new design embrace a major reduction in height and weight, high metering accuracy over the entire range of transmission-line voltages, improved mechanical clamping and sealing, and excellen voltage distribution and transient responset