Transient Analysis of Electric Power System in Refinery Industry: Case Study in PT. KIAS Gresik [ READ ]
Eko Nugroho, T. Haryono, Suharyanto
Power quality of electric power system is a set of problems in industry which is necessary to be investigated. Dominating inductive load causes quality of the power factor decreasing. To improve power factor is obtained by installing a capacitor bank units. However, the existence of the capacitor causes other problems in power system. Analysis and simulation of electromagnetic transient is the basic methodology for understanding the performance of the power system, determining the level of reliability of electrical equipment, explaining the failure of equipment or testing of electrical equipment protection. Transient phenomenon in power systems related to the disturbance is caused by operating errors, the process of switching, lightning or load variations. This research is focusing in analyzing transient in PT. Alam Indah Karya Sejahtera (KIAS) Gresik, a refinery factory of palm oil processing. Transient analysis of the power system has not been done yet before. Therefore, transient analysis and simulation of the PT. KIAS Gresik power system is very important in this research. Transient simulation was done by software EMTP (electromagnetic transient program). From the analysis and simulation it was showed that biggest contributor transient overvoltage was the induction motor switching operation reaching 2251 V. To reduce the overvoltage, added a surge arrester could cut voltage to 400 V.
Eko Nugroho, T. Haryono, Suharyanto
Power quality of electric power system is a set of problems in industry which is necessary to be investigated. Dominating inductive load causes quality of the power factor decreasing. To improve power factor is obtained by installing a capacitor bank units. However, the existence of the capacitor causes other problems in power system. Analysis and simulation of electromagnetic transient is the basic methodology for understanding the performance of the power system, determining the level of reliability of electrical equipment, explaining the failure of equipment or testing of electrical equipment protection. Transient phenomenon in power systems related to the disturbance is caused by operating errors, the process of switching, lightning or load variations. This research is focusing in analyzing transient in PT. Alam Indah Karya Sejahtera (KIAS) Gresik, a refinery factory of palm oil processing. Transient analysis of the power system has not been done yet before. Therefore, transient analysis and simulation of the PT. KIAS Gresik power system is very important in this research. Transient simulation was done by software EMTP (electromagnetic transient program). From the analysis and simulation it was showed that biggest contributor transient overvoltage was the induction motor switching operation reaching 2251 V. To reduce the overvoltage, added a surge arrester could cut voltage to 400 V.
