Power Quality Mitigation at Petrochemical Plant Using Equipment Immunity Robustness Enhancement

This paper is presented power quality mitigation at petrochemical plant using equipment Immunity Robustness Enhancement. Electrical equipment immunity is critical element that designed to avoid unnecessary plant downtime due to power disturbance especially on power dip. This paper elaborates on the methodology and mitigation to address the power quality issues from IEC61000 series point of view, followed by discussion on power quality site survey at the utility system which supply power to petrochemical plant. A comprehensive dynamic power system study also conducted by simulating internal and external fault to identify the critical equipment that require immunity enhancement to meet IEC61000 series and plant standard requirement. Then, critical load ride through testing is also described to prove modification completion which complies with IEC61000 series and plant standard.