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020 _aTHE0006816(Local)
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_zkam
040 _aUMP
090 _aTK3226 .A35 2008 rs Bc.
100 0 _aWan Mohd Afiq Nazman Wan Anuar
245 1 0 _aStudy of voltage sag in power system with six-phase transmission line /
_cWan Mohd Afiq Nazman Bin Wan Anuar
246 3 _aStudy of voltage sag in power system with six-phase transmission line
_h[electronic resource]
260 _aKuantan, Pahang :
_bUMP,
_c2008
300 _a58 p. :
_bill. ;
_c30 cm. +
_e1 computer disc
502 _aProject paper (Bachelor of Electrical Engineering (Power system)) -- Universiti Malaysia Pahang - 2008
520 _aVoltage sags are the short durations in root-mean-square (RMS) rated AC voltage occur during faults may cause miss-operations to the customer’s equipment and loads of power system and recognized as the most important power quality problem. However, this thesis investigate the sag event which is caused by short circuit (three-phase-to-ground fault and six-phase-to-ground fault) on the double three phase transmission line and conversion of phase double circuit to the six phase single circuit transmission line. Six phase were chosen for this project because six phase enhance power transfer capability and becoming the area of growing interest in the power system industry. This thesis also presents the comparisons between voltage reductions at the terminal bus for both three and six phase cases. Simulation at steady state and transient state of the system proposed is simulated using PSCAD/EMTDC. The system that used in this thesis was four buses transmission line. The simulation result shows that converted double three phase to six phase transmission experienced lower voltage sags level at other bus terminal than double three phase system due to three-phase-to-ground fault and six phase-to-ground fault if the fault happen at bus three, but for faulted bus, the it’s experienced the same percentage voltage sag. For fault happen between transformers in six phase operation, 20% to 45% of the voltage was improve at the faulted bus compare to three phase system.
650 0 _aShort circuits
650 0 _aElectric circuits
999 _aVIRTUA40
_c1576
_d1582
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5200*6500*6501*9992