CPC Subgroup
H01F 30/06 characterised by the structure
Full Title
Fixed transformers not covered by group H01F19/00 > characterised by the structure
4 direct subcodes
Child Classifications
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- H01F 30/08 without magnetic core
- H01F 30/10 Single-phase transformers (H01F30/16 takes precedence)
- H01F 30/12 Two-phase, three-phase or polyphase transformers
- H01F 30/16 Toroidal transformers