50 kVA Three Phase Isolation Transformer, 480V to 400V, Step Up/Down

Note:

1. The transformer can only convert voltage, and CANNOT convert frequency.
2. The transformer CANNOT convert 1-phase voltage to 3-phase voltage.
3. Input/output voltage, power rating, and whether a shell for all transformers can be customized to meet clients' requirements.

Q1. What role does the aluminium/copper winding shield play at 50 kVA?

At 50 kVA, the transformer's larger winding surface area increases inter-winding capacitance compared with smaller units — meaning more high-frequency noise can couple through from primary to secondary without a shield. The aluminium/copper electrostatic shield inserted between windings provides a low-impedance path to ground for this coupled interference, blocking it from reaching connected equipment. This is particularly valuable in facilities with variable-frequency drives (VFDs), switching power supplies, or other sources of high-frequency noise.

Q2. What voltage options are available if 480V/400V does not match my requirements?

Both primary and secondary voltages are independently selectable from a range of standard values, including 120V, 190V, 208V, 220V, 230V, 240V, 380V, 400V, 415V, and 480V — covering virtually all major international grid standards. If your project requires a different pairing — for example, 480V to 380V for connection to older Asian-standard equipment, or 415V to 208V for a UK-to-North America installation — the same 50 kVA unit can be configured accordingly at the time of order. Winding material (aluminium or copper) and enclosure type (open or IP 24) are also selectable.