3UI lamination cores are used in the manufacturing of three-phase transformers. In transformers with 3 UI lamination cores, each of the three lamination core arms bears a coil body. In contrast to the EI sheets, the 3UI sheets cannot be welded since the joints of the E and I sheets are within the coil body. The E and I sheets therefore have to be nested reciprocally during transformer manufacturing. As a result, either one or multiple identical sheets are slid in from one side of the coil body. Nesting machines are available for the nesting of 3UI sheets, which can significantly reduce manufacturing times.
Erich Grau GmbH
Stanzwerk für Elektrobleche
Tel.: 0 70 42 / 83 63 - 0
Fax: 0 70 42 / 83 63 - 63
Stator and rotor technology
Founded in 1952, ERICH GRAU GMBH is today a renowned, internationally active company in the field of stamping technology.
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