Three-phase transformers ultra insulation voltages as needed

Three-phase transformers ultra-insulated for voltage adaptation, filtration and insulation in machinery and electrical installations. Primary and sequaraire coils in star (Yyn0) with neutral in the secondary. Mounted in metal box with an IP-23 degree of protection.
They are manufactured with non-standard stresses (at the customer's request), both in the primary and secondary.
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