What performance can we expect from a smoked Tetrix?

[Al Skierkiewicz]

Chris,
I think it is important to remember that it may only be one winding that is affected in the failure. While shorted windings will lower the resistance and therefore increase current, that additional current may not significantly increase magnetic field beyond or equal to the field in an undamaged motor. Damaged windings likely will affect the available current in the other windings due to voltage drop in the supply circuitry. We are also not considering shorts between adjacent windings. This phenomena may actually cause less currents to flow in both windings. In the Tetrix and several KOP motors, adjacent windings overlay each other.