DIFF Subgroup
H02K 19/10 for multi-phase current
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Synchronous motors or generators > Synchronous motors > for multi-phase current
CPC:
Synchronous motors or generators (having permanent magnets H02K21/00) > Synchronous motors > for multi-phase current
CPC subdivides this area 3x more granularly than IPC with 2 additional codes.
2 codes are CPC-only extensions.
Child Classifications
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- H02K 19/12 characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing IPC+CPC Available in IPC and CPC