摘要：Normal 0 false false false IN X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Harmonics are caused by non linear load. When more harmonics -producing loads are being connected to systems which are unbalanced, effect of single phase harmonics- producing loads are also becoming important. Unbalance load in three phases system increases non linear affected energy consumption in power system. This research aims to know how much harmonics affecting unba lance three phase load, to know reduction harmonics by using Broadband L w Pass Filter. Modelling created and simulated using mathlab to know broadband ter parameter base on harmonics characteristic in three phases load. Measurements are done to know current and voltage harmonics level at source and system before and after filter installed, and calculated percentage saving of power consumption. This research shows that effect of increasing percenta current harmonic level on load side will increase percentage level of load unbalanced. Installing filter will increase percentage of current harmonic although the f amental value rms is decrease. The unbalanced current load average increase 22.5% after filter installed, when currents consumption system reduces by 42% in average, power factor increase to 88.3%, Reactive power reduce up to 88.5% and appare power reduce up to 48.3%.
