>>Alternators

Brushless maintenance free design allows worry free operation with outstanding longevity.

Single stage excitation provides fast response time for droop, overshoot, and recovery time cycles. Time constants are cut in half as compared to traditional machines with two stage excitation using a pilot excitor.

High speed operation creates a design limit of 56 inches (142 cm) outside diameter rotor for 2 pole operation at 3600 RPM synchronous speeds with a theoretical limit of 1.5 megawatts in a length of 60 inches (152 cm). These specs are for air cooled machinery and can be improved with other cooling methods. The numbers in smaller sizes are equally impressive.

Self regulation of the voltage output is practical using compound field windings. We can control efficiency, power factor and voltage with a separately excited field and voltage regulator.

Size and weight are lower than conventional two stage brushless machine designs. Bearing free operation is possible utilizing drive bearing support.