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Engineering tools

Transformer Core Loss & Weight Calculator

Estimate transformer core weight, net core section, flux density and no-load loss from core geometry, lamination structure and CRGO material data.

  1. 01

    Design inputs

    Frequency, material grade, volts per turn and core dimensions.

  2. 02

    Lamination stack

    Width and thickness per side for each step.

  3. 03

    Results

    Net core section, flux density, core weight and estimated no-load loss.

Calculator

Fills in a complete 10-step sample core and calculates it.

Connecting to the calculation service…

Design inputs

Operating conditions
Configuration

3-phase, 3-limb

Hz

V
Core dimensions
mm

If you do not want to calculate the core diameter, enter the maximum lamination width directly.

mm

70–1000 mm, in 5 mm steps

mm
mm

Lamination stack

Steps —

List steps from widest to narrowest. Enter thickness per side.

Tip: paste width and thickness columns directly from a spreadsheet.

Section preview

Enter step widths and thicknesses to draw the section.

StepWidth mmThickness / side mmRemove step
Σ thickness per side—

Manufacturing review

Need this core manufactured?

Chenfan Electric manufactures custom transformer cores based on customer drawings and design parameters.

Send your drawing or calculation parameters for manufacturing review.

  • Burr height< 0.02 mm
  • Stacking factor> 97%
  • Step-lap cutting and pre-stacking
  • Large power transformer core capability
  • Custom CRGO / GOES material options

Manufacturing process

From Calculation to Manufacturing

Custom manufacturing based on your drawings and electrical design.

  1. 01Core cutting
  2. 02Step-lap
  3. 03Pre-stacking
  4. 04Assembly

Manufacturing review

Project / Core Calculation Summary

The parameters below are taken from the calculator. Add your contact details and drawings, then send them for manufacturing review.

Contact details

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