H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
H02J3/00—Circuit arrangements for AC mains or AC distribution networks
H02J3/38—Arrangements for feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel
H02J3/40—Synchronisation of generators for connection to a network or to another generator
H02J3/42—Synchronisation of generators for connection to a network or to another generator with automatic parallel connection when synchronisation is achieved