An electrical system and method for a turbinealternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an output circuit or the stator winding of the alternator. The various parts have cooperating slide components for permitting relative movement of the members in four opposed directions. The sense elements are electrically connected to a common signal conditioning circuit that generates an output signal for each of the sense elements.