IPC Subgroup
H02K 27/22 having means for improving commutation, e.g. auxiliary fields, double windings, double brushes
Introduced: September 1968
Last revised: January 2006
Full Title
AC commutator motors or generators having mechanical commutator > having means for improving commutation, e.g. auxiliary fields, double windings, double brushes
Classification Context
- Section:
- ELECTRICITY
- Class:
- GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
- Subclass:
- DYNAMO-ELECTRIC MACHINES