shown by coils wound without insulation. Single pancake coils of GdBCO coated conductor
were wound without insulation, with kapton tape every five turns, and with the full use of
kapton tape. They were characterized by charge–discharge, sudden discharge, and over-
current testing. The improved charging and discharging and high thermal and electrical
stabilities of the partially insulated coil demonstrate its potential for use in HTS power …