Three-phase Voltage Imbalance Protection System

Author(s)	Sreehari Sharma S, Salins SS, Sreejith S
Country	India
Abstract	Voltage imbalance condition often causes issues in the operation of three-phase electrical equipment. It results in overheating, improper operation, or performance-related issues. The system proposed here was developed to protect the three-phase rectifier used in a DC Machines lab with 30kW capacity from the voltage imbalance. It was developed as a simple and low-cost system that can effectively satisfy the intention. It continuously compares the supply voltage levels using voltage sensors and stops the power supply if there is a significant difference in the phase voltage levels. It will display the phase voltage levels in the liquid crystal display and also will give an alert using the buzzer. This system was successfully implemented and tested and can be used to protect other three-phase equipment as well.
Keywords	Voltage Imbalance, Protection, Three-phase, Rectifier
Field	Engineering
Published In	Volume 5, Issue 3, May-June 2023
Published On	2023-05-17
DOI	https://doi.org/10.36948/ijfmr.2023.v05i03.3079
Short DOI	https://doi.org/gr8p6g

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