Open-circuit test of three-phase transformer

Version 1.0.0 (36.6 KB) by Abdelrahman Farghly
The open-circuit test (also called the no-load test) for a three-phase transformer
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Updated 9 May 2025

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Open-Circuit Test of a Three-Phase Transformer – Detailed Explanation
The open-circuit test (also called the no-load test) for a three-phase transformer is used to determine:
  • Core (iron) losses: due to hysteresis and eddy currents
  • Magnetizing current
  • Parameters of the magnetizing branch of the equivalent circuit: Rc (core loss resistance), Xm (magnetizing reactance)

Cite As

Abdelrahman Farghly (2025). Open-circuit test of three-phase transformer (https://www.mathworks.com/matlabcentral/fileexchange/181073-open-circuit-test-of-three-phase-transformer), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2022b
Compatible with any release
Platform Compatibility
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Version Published Release Notes
1.0.0