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Ground Transformer?

Discussion in 'Electronic Basics' started by Harry Muscle, Dec 15, 2003.

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  1. Harry Muscle

    Harry Muscle Guest

    I'm gonna be installing a big 250VA transformer in a plastic case and I'm
    wondering if I should ground the metal body (the sheets of iron that the
    wires are wrapped around) or just leave it ungrounded? Is it standard
    practice to ground a transformer, or does this affect it's performance (or
    would it maybe even short it)?

  2. One of the failure modes on overload is a short between windings and
    core, so I normally ground the core, so that if this happens it blows
    the primary fuse. Otherwise, the only effect this has is a very
    slight reduction of effective capacitance between primary and
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