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F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
F02P15/12—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having means for strengthening spark during starting
Anordnung bei Asynchronmaschinen, in deren Sekundaerstromkreis ueber Kommutatormaschinen zwei Spannungskomponenten eingefuehrt sind, von denen die eine in ihrer Groesse derart bemessen ist, dass sie die Sekundaerspannung der Asynchronmaschine ganz oder teilweise aufhebt, waehrend die zweite in ihrer Groesse vom Schlupf unabhaengig ist