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Class Information
Number: 318/731
Name: Electricity: motive power systems > Induction motor systems > With voltage source connected to motor secondary
Description: Subject matter wherein the secondary member is connected to a system which supplies it with a voltage in addition to the voltage electromagnetically induced by the primary member.


Sub-classes under this class:

Class Number Class Name Patents
318/733 Commutator connected to secondary winding 2
318/732 Electronic device controls current in secondary circuit 47
318/734 Slip rings connected to secondary winding 4


Patents under this class:

Patent Number Title Of Patent Date Issued
7023150 Drive device Apr. 4, 2006
6933701 Control apparatus for synchronous motor Aug. 23, 2005
6628101 Electronic shorting of wound rotor windings Sep. 30, 2003
5598079 A.C. induction devices having tuned compound windings Jan. 28, 1997
4928051 Electric motor May. 22, 1990
4652807 Starting method for induction motors Mar. 24, 1987
4149114 Induction motors having squirrel cage rotors analogous to commutator motors Apr. 10, 1979
4001666 Load peak shaver power regulating system Jan. 4, 1977



 
 
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