DIFF Subgroup
H02K 19/12 characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Synchronous motors or generators > Synchronous motors > for multi-phase current > characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing
CPC:
Synchronous motors or generators (having permanent magnets H02K21/00) > Synchronous motors > for multi-phase current > characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing
No child classifications to compare. This is a leaf node in both IPC and CPC.