Details

Introduced: September 1968

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Synchronous motors having permanent magnets; Synchronous generators having permanent magnets > Details

Of 3 combined children, 2 exist in both systems.

1 codes are CPC-only extensions.

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H02K 21/021 +2 CPC CPC only CPC only
H02K 21/04 Windings on magnets for additional excitation +2 CPC IPC+CPC Available in IPC and CPC
H02K 21/10 Rotating armatures IPC+CPC Available in IPC and CPC