Home Electrical Engineering Forum General Discussion street distribution in Mexico

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    Hi   I am a retired electricity teacher in Canada

    I am used to street transformers using single phase HV input  and a dual 120 volt center neutral output to homes.

    Here in Mexico I see transformers on poles fed by 3 HV phases with 4 output connetors!!

    Coulsd someone give me details on tha type of distribution?



    The incoming lines are MV 3-phase/3-wire and the outgoing lines are LV 3-phase + neutral/4-wire.

    The transformer is a Dyn configuration

    This system is commonly used in Europe and the rest of the world outside North America

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