Star-delta starting of induction motor

Version 1.0.0 (45.2 KB) by Abdelrahman Farghly
Star-Delta Starting is a popular method used to reduce the starting current of a three-phase induction motor
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Updated 10 May 2025

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Basic Principle of Star-Delta Starter
  • The motor initially starts with the stator windings connected in a star (Y) configuration.
  • After a short time delay (usually 3–10 seconds), the connection is switched to a delta (Δ) configuration.
  • This reduces the starting voltage and current by a factor of 1/√3 (about 58%) compared to direct-on-line (DOL) starting.

Cite As

Abdelrahman Farghly (2025). Star-delta starting of induction motor (https://au.mathworks.com/matlabcentral/fileexchange/181117-star-delta-starting-of-induction-motor), MATLAB Central File Exchange. Retrieved .

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