40 kVA Three Phase Isolation Transformer, 240V to 480V, 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. Why choose a dry-type transformer over an oil-filled unit at 40 kVA?

Oil-filled transformers become increasingly common above 50–100 kVA, but at 40 kVA a dry-type unit is the practical default for indoor industrial and commercial installation. Dry-type construction eliminates fire risk from oil leaks, removes the need for containment bunding, and requires no periodic oil sampling or replacement — reducing total cost of ownership over the transformer's service life. It also permits installation in occupied buildings, switchrooms, and enclosed plant rooms where oil-filled equipment would be prohibited or require additional safety infrastructure under local electrical codes and fire regulations.

Q2. Can I specify a voltage pair other than 480V and 240V?

Yes. Both primary and secondary voltages are independently selectable from a range of standard AC values including 120V, 190V, 208V, 220V, 230V, 240V, 380V, 400V, 415V, and 480V — covering the major grid standards used across North America, Europe, the UK, India, the Middle East, and Asia-Pacific. Winding material (aluminium or copper), enclosure type (open or IP 24), and whether movable wheels are required can all be specified at the time of order.