Transformer Sizing & Spec

Fill out the transformer parameters below. Click "Generate Specification" to create an Excel spec sheet with sizing, electrical characteristics, and budget pricing.

📚 Transformer Library

Import

Project Information Change Client →

Project Name

Project Number

Client

Date

Transformer Class & Ratings

Transformer Class

Standard / Specification

Rating (kVA or MVA)

Phase

Frequency

Primary Voltage

Secondary Voltage

Primary Connection

Secondary Connection

Electrical Characteristics

Impedance (%Z)

BIL — Primary (kV)

BIL — Secondary (kV)

Tap Changer

Tap Changer Type

Tap Range

Construction

Insulating Fluid

Cooling Class

Core / Coil Construction

Installation

Altitude (ft ASL)

Ambient Temp (°C)

Arc-Resistant / Enhanced Safety

Arc-Flash Rated Construction

Notes

Additional Requirements / Notes

Calculated Values

Full Load Current (A)

Short Circuit Current (A)

Recommended BIL — Primary

Auto-calculated from your inputs above. FLC per IEEE. Short circuit assumes infinite bus. BIL per IEEE C57.12.00.

Full spec = detailed data sheet. Short form = one-line description. Save = add to your reusable transformer library.

🔌 Transformer Sizing & Spec