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    • Common structure of three-phase AC power supply

    A separate (independent) three-phase AC power supply
     


    500KW load bank
     
    No power transformer structure, the input is not isolated, the output is isolated, it has the following characteristics:
    1, three independent output transformers, three groups of converters, use up to 12 IGBTs.
    2. Three groups of converters may also share one group of rectifiers.
    3, three phase by the complete single phase integrated connection, can be used for single phase or three phase.
    4, suitable for three-phase balanced and unbalanced (100% unbalanced) load, can be made into a chassis or three chassis according to demand.
    Two, low-cost three-phase AC power supply
    No power transformer structure, the input is not isolated, the output is isolated, it has the following characteristics:
    1. An output transformer has three windings and a converter, and the number of IGBTs used is only 6.
    2, can only be used for three-phase load (each phase can not be used alone), not suitable for three-phase unbalanced load.
    3. This structure can only be manufactured in one machine box.
    Three, independent three-phase AC power supply
    No output transformer structure, input isolation, output isolation, it has the following characteristics:
    1. One power transformer, 3 groups of inverters, 12 IGBTs.