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A generating system including a permanent magnet generator having a stator, a rotor journalled for rotation in proximity to the stator and normally separated therefrom by a small air gap. Permanent magnets and windings are provided on the stator and the rotor respectively, or the reverse as desired

A generating system including a permanent magnet generator having a stator, a rotor journalled for rotation in proximity to the stator and normally separated therefrom by a small air gap. Permanent magnets and windings are provided on the stator and the rotor respectively, or the reverse as desired and a detector is provided for sensing the development of an electrical fault in the winding and for moving the stator away from the rotor to increase the air gap thereby reducing the magneto motive force available to induce current in the winding to prevent burn out of the winding.

대표청구항 ▼

In a generating system including a permanent magnet generator, the combination of: a rotor carrying at least one permanent magnet; a stator in proximity to said rotor and normally separated therefrom by a small air gap; at least one electrical winding magnetically associated with said stator and in

In a generating system including a permanent magnet generator, the combination of: a rotor carrying at least one permanent magnet; a stator in proximity to said rotor and normally separated therefrom by a small air gap; at least one electrical winding magnetically associated with said stator and in which current may be induced by a magnetic field generated by said permanent magnet; means mounting said stator and said winding for movement toward and away from said rotor; means for moving said stator and said winding away from said rotor; means for detecting the development of a fault in said winding; and means responsive to said detecting means for operating said moving means; whereby upon detection of the development of a fault in said winding, said winding and said stator will be moved away from said rotor to reduce the magneto motive force available to induce current in said winding to thereby reduce the current induced in said winding to prevent destruction of said permanent magnet generator.