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Load tap changer location

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    Load tap changer location

    Does anyone know how to tell if a load tap changer is connected to the line end or neutral end of a winding? This seems to make a difference with the oil sample analysis.

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    Quote Originally Posted by Achandler View Post
    Does anyone know how to tell if a load tap changer is connected to the line end or neutral end of a winding? This seems to make a difference with the oil sample analysis.
    I would take a look at the nameplate data as it typically shows how the tap changer is connected on the winding schematic with physical connections points. That being said, I haven't played with a GSU unit in a long time, but should still show a schematic representation.

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    Quote Originally Posted by Kalbi_Rob View Post
    I would take a look at the nameplate data as it typically shows how the tap changer is connected on the winding schematic with physical connections points. That being said, I haven't played with a GSU unit in a long time, but should still show a schematic representation.
    Kalbi_Rob is correct. Always refer to the nameplate. It should show the winding representation and how its wired

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