Good, thank-you! I wasn't aware of that, but I'm not an EE and that's why I've asked to ask one: this kind of things are much better handled by experts in the field.
But anyway I have the strong feeling that that wasn't the meaning the person who described transformers had in is head: "/Tertiary, quaternary and further sides are intended for lower voltages auxiliary services inside power plants or substations/", which, in the description you pointed at, is _at most_ a "by-product" of using a tertiary . Sergio On 2018-12-20 14:05, Paul Allen wrote: > On Thu, 20 Dec 2018 at 12:36, Sergio Manzi <[email protected] <mailto:[email protected]>> > wrote: > > The definition of primary v.s. secondary is about which is the exciting > part and which is the excited part. "tertiary" is pure nonsense, AFAIK. > > > Power transformers can have tertiary windings: > https://www.electrical4u.com/tertiary-winding-of-transformer-three-winding-transformer/ > although it may not be sensible to map the ratings of a tertiary. > > Some transformer-isolated voltage converters may make use of a feedback > winding which is > (at least informally) referred to as a tertiary winding. > > -- > Paul > > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging
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