Enter your transformer's power rating in kVA (e.g., 1500 for 1.5 MVA, 10000 for 10 MVA). Common ratings: 300, 500, 750, 1000, 1500, 2500, 5000, 10000, 25000.

The incoming utility voltage. Check your utility connection agreement. 13.8 kV is most common for commercial/industrial in North America.

The voltage your facility needs. 480V is standard for industrial equipment. 208V/240V for smaller facilities. Match your main electrical panel.

Determined by your location's power grid. North America uses 60 Hz.

Almost all commercial/industrial applications use three-phase power for efficiency and motor operation.

Dyn11 is standard for most applications - provides a neutral for single-phase loads. Your electrical engineer will specify if different is needed.

Copper is standard for most applications. Aluminum reduces cost and weight but requires larger cross-sections for the same rating. Used for both HV and LV windings.

ONAN is the base self-cooled rating. ONAF adds cooling fans for +33% capacity. OFAF adds forced oil circulation for +67%.

Affects bushing configuration, switching requirements, and fault current design. Loop feeds require load-break bushings on both sides.

Helps OEMs understand design priorities — data centers need redundancy, renewables need harmonics handling, oil & gas needs hazardous area ratings.

Number of identical units needed. Multiple units typically get better pricing.

Location helps estimate shipping costs and may affect design for local climate conditions.

When do you need the transformer delivered? Lead times typically range from 12-52 weeks depending on size and region.