TY - CONF TI - Investigation on high neutral earthing resistor temperature when islanded generator connected to utility grid ID - scholars994 SP - 642 KW - District cooling; Electricity supply; Flowthrough; Generating unit; Generator; Mode of operations; Neutral earthing resistor (NER); Normal operations; Parallel operations; PETRONAS; Power systems; Resistor temperature; Triplen harmonics; Triplen harmonics currents; Utility grids KW - Electric grounding; Resistors KW - Harmonic analysis N1 - cited By 13; Conference of 2010 9th International Power and Energy Conference, IPEC 2010 ; Conference Date: 27 October 2010 Through 29 October 2010; Conference Code:83829 N2 - Electricity supply to Universiti Teknologi PETRONAS (UTP) is provided by two generating units at gas district cooling (GDC) plant located in the campus. Under normal operation, UTP power system is operating in island mode and during emergency, it will be connected to utility grid of Tenaga Nasional Berhad (TNB). Each generating unit is grounded through neutral earthing resistor (NER). It has been observed that NER temperature become high when generator operating in parallel with the grid. Investigation reveals that triplen harmonics currents continuously flow through NER during island and parallel operation. Higher triplen harmonics currents are noticed during parallel operation as compared to island mode of operation. High NER temperature is caused by increase in triplen harmonics currents that flow through it. The above phenomena are described in this paper together with some proposed measures to overcome the problem. ©2010 IEEE. AV - none CY - Singapore EP - 647 A1 - Abdullah, M.F.B. A1 - Hamid, N.H.B. A1 - Baharudin, Z.B. A1 - Khamis, M.F.I.B. A1 - Hashim, N.S.R.B. A1 - Yusof, S.B. UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-79951636172&doi=10.1109%2fIPECON.2010.5697072&partnerID=40&md5=b280bcf3445bd85836b1b501b4e668be SN - 9781424473991 Y1 - 2010/// ER -