Apongol, Ryan Jake N...et.al. <br/><br/>
Assessing the impact of open-delta transformer configuration on power quality in the electrical distribution system of Mariano Marcos State University- College of Engineering /  
Ryan Jake N. Apongol, Milton Homer G. Galimba,  Jan Helsien B. Layco & Patrick Lorenz C. Salvador 
 - City of Batac :  MMSU,  2024. 
 - xxiv, 217 leaves :  29 cm 
<br/><br/> (Bachelor of Science  in Electrical Engineering)  
<br/><br/>Bibliography: leaves 122-126 
<br/><br/> Mariano Marcos State University College of Engineering is currently utilizing  an open-delta transformer configuration for its electrical distribution system. Despite  being economical, this configuration may result in various power quality issues which  could degrade the reliability of the electrical distribution system. This study aims to  assess its impact on power quality. The primary objective is to determine the current  power quality status and trends of the electrical distribution system. Power quality  analyses used include voltage stability, transient stability, harmonic analysis, and load  flow. An electrical simulation program is also used to performed power quality analysis  on a closed-delta transformer configuration for comparison.   After series of analyses, the researchers found out that the open-delta  transformer configuration identified several deficiencies. Voltage instability was a  major issue, with fluctuations often exceeding permissible limits, risking equipment  damage and reduced efficiency. Current unbalance and fluctuations during transient  events, along with high levels of harmonic distortion, highlighted the system's  vulnerability to dynamic load changes and inefficiencies. Prolonged zero current  periods during outages indicated poor system resilience, suggesting that significant  improvements are needed for the open-delta configuration to meet critical reliability,  efficiency, and quality standards in power distribution.