CPC Subgroup
H02M 5/34 using mechanical contact-making and -breaking parts
Full Title
Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases > without intermediate conversion into DC > by dynamic converters > using mechanical contact-making and -breaking parts
1 direct subcode
Child Classifications
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- H02M 5/36 wherein the parts are rotating and collectors co-operate with brushes or rollers