(under subclass 148) Subject matter wherein the converter
includes a dynamoelectric machine.
(1) Note. See the class definition, Glossary, for a definition of dynamoelectric machine.
(2) Note. The dynamoelectric machine types commonly used as phase converters include motor-generator sets and practically every kind of A.C. motor and generator.
(3) Note. Although systems involving motor-generator sets are generally classified in Class 322, Electricity: Single Generator Systems, systems involving significant phase conversion are classified in this class (363). However, the generic place for motor-generator set systems are in Class 323. See the class definition, See Lines With Other Classes, Motor Generator Systems in Class 322, Electricity, Single Generator Systems:.
(4) Note. Since many of the problems of operation and control of dynamoelectric machine converters are analogous to the problems of operation and control of motors and generators (e.g., starting, speed control, excitation control, etc.) it is noted that analogous pertinent art is classified in the motor and generator classes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102+, for current conversion system having a dynamoelectric machine converter. 174+, for frequency conversion systems having a dynamoelectric machine converter.
SEE OR SEARCH CLASS
310, Electrical Generator or Motor Structure,
10+, for miscellaneous dynamoelectric machine structures, and subclass 161 for phase shifter dynamoelectric machines.
318, Electricity: Motive Power Systems, appropriate subclasses for electric motor systems.
322, Electricity: Single Generator Systems, appropriate subclasses for electric generator systems; particularly
16, for motor-generator set systems having simultaneous control of both motor and generator; subclass 39 for motor- generator set systems having motor control. See (3) Note above.
323, Electricity: Power Supply or Regulation Systems,
201, 204 for control systems involving dynamoelectric machines.
