Model test coil for a 10 MVA superconducting generator field winding

The superconducting field winding of the MIT-DOE 10 MVA experimental generator has been designed using a unique structural concept of fourteen discrete saddle shaped winding modules supported by a series of yokes. Intramodule stresses are minimized by the use of interlayer slip planes. A model coil has been built to develop the fabrication techniques required for construction of the generator field winding. The coil was constructed to the full scale dimensions of one of the field winding modules, but in a solenoidal geometry to fit the test facility. The coil has been tested under simulated operating conditions to prove the viability of the design concept and to measure the electrical and thermal performance of the winding.