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Unread 24-06-2008, 12:29
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AKA: Daniel Bray
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Re: T/F Differential protection

Brings back my old EE classes in college... I think the question is looking for the rationale behind the old rule of thumb that "CTs on any wye winding of a power transformer should be connected in delta, and CTs on any delta winding should be connected in wye". (Replace wye with star if you are in Europe). Try this reference and see if it doesn't help (starting on page 212)... My apologies if I misinterpreted the question.
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