3 phase transformer on single phase 240

Discussion in 'Amateur Radio Amplifiers' started by K0IDX, Mar 30, 2017.

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  1. K0IDX

    K0IDX Guest

    I have a 3 phase transformer, it is the type with 3 sets of windings with 3 core legs not 5. Can I simply cut this down to 2 sets of windings ? for use on edison 240 single phase - typical residential service ?? What would the derating factor be ?
     
  2. NC5P

    NC5P Ham Member QRZ Page

    My brother bought a single phase to three phase converter used for a reasonable price used. He runs his three phase equipment on his house power. Just an idea you might consider. There are several standard voltages found on this equipment. 120/208, 240 delta (no wye or "wild leg"), and 277/480.
     
  3. WW1WW

    WW1WW Ham Member QRZ Page

    Here is a link you may find interesting.
    http://www.qsl.net/kf8od/transformer.html
     
  4. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    What, exactly, are you trying to do?
     
  5. K6BSU

    K6BSU Ham Member QRZ Page

    If the transformer has three independent cores, then two of them can be re-wired for 240VAC. 3-phase transformers, using three separate cores, are connected in a delta-wye.

    Separate the pri. and sec. wires of all transformers. On two of them, connect the primaries in series in series=aiding. The secondaries can be connected in series or parallel, depending on your voltage/current needs.

    Experimentation, using a 'scope or a VM will show you the correct phasing.
     

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