363 / | HD | ELECTRIC POWER CONVERSION SYSTEMS |
1 | DF | CASCADED OR COMBINED, DIVERSE CONVERSIONS IN WHICH THE FREQUENCY OR PHASE OR COMBINED CONVERSION IS WITHOUT INTERMEDIATE CONVERSION TO D.C. {3} |
2 | DF | .~ Current and phase (e.g., D.C.-Ph1-Ph2) {1} |
3 | DF | .~.~ Phase 1 to phase 2 to D.C. {3} |
5 | DF | .~.~.~ With interphase transformer {1} |
6 | .~.~.~.~ Including plural anode/single cathode device |