I've recently become very interested in designing efficient motors and alternators for use in a gas turbine hybrid electric vehicle. I feel that these designs may be able to achieve uniquely high power to weight ratios compared to the components in commercially available hybrid electric drivetrains due to the very high shaft speeds available from gas turbine engines. (thus compounding the advantages gas turbines may have over reciprocating engines in the next generation of hybrid vehicles) These fast shaft speeds may facilitate very high voltages, which in turn could reduce the amount of windings and material required in such devices. I feel that a move away from the standard enameled copper winding paradigm to polymer insulation or more exotic designs could be the key to unlocking high voltage electric machines. I am trying to source information and journals on the design of high voltage electric machines and dielectric breakdown mechanisms in such machines, but I haven't had much success. Does anyone know of any journals that address this topic? A good book on alternator and motor design would be pretty handy as well. Does this idea have any merit? Maybe this thread would be more suited to the engineering forum?