03121nas a2200385 i 4500 20260818095244.0 280200s1999 th uu m rtt 0| a1eng d .b1177759x AIT Thesis no.ET-99-29 Damrong Kamolpattananan Effects of harmonics and voltage flickers on a power system in Samutprakarn province, Thailand Bangkok : Asian Institute of Technology, 1999 75 leaves Thesis ; no. ET-99-29 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering. School of Environment Resources and Development Thesis (M.Eng.) - Asian Institute of Technology, 1999 In recent years, power quality becomes more critical because of the increase in the number of loads sensitive to power disturbances, and as the loads themselves have become major causes of the degradation of power quality. Therefore, power quality responsibility lies with three main groups: the utility company, the customer group, and the manufacturing group. A number of load types used in industries cause harmonic current and voltage fluctuation such as electric arc furnaces (EAFs) that are found in Steel Manufacturing Facility. Due to the arc furnace load, the significant voltage distortion will occur in power system, which effects the other customer in the same area. In the utility side, the system configuration also causes voltage distortion too. Simulation results from HI_ WA VE program show that the fifth harmonic resonance occurs in power system and by changing the configuration of capacitor bank at distribution feeders can solve this problem. Electric arc furnaces cause voltage fluctuation on account of the oscillated of reactive power. The field measurements illustrate the effect of this voltage fluctuation on another customers in the same distribution area. Consequencely, by adding the static VAR compensator at the steel manufacturing can reduced the flicker problem, which can be seen by the simulation results of EMTDC program. Electric power transmission Surapong Chiraratananon, Chairperson Yu, Cun Yi, Examination Committee Dhadbanjan, Thukaram, Examination Committee Electricity Generating Authority of Thailand, Scholarship donor Asian Institute of Technology. Thesis ; no. ET-99-29 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B12792 .b1177759x mnait u 240421 0 000228 m a u 0 mnait mnarc 22 40 Barcode : 30050120731871 CREATED : 2014-03-02 RECORD # : i12754663 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120365399 CREATED : 2016-06-15 RECORD # : i1303733x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 35157 35157 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.ET-99-29 30050120731871 2026-08-18 09:52:44 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.ET-99-29 30050120365399 2026-08-18 09:52:44 2026-08-18 40