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分析永嘉堡牵引变电所功率因数状况，指出在该所的特殊工况下，８Ｋ型电力机车可能是造成该变电所功率因数偏低的主要原因。为改善这一状态，应采用可调并联电容补偿技术，以使牵引供电系统与我国铁路和电力市场商业化运营的发展和技术要求相适应。
Analysis of the condition of the power factor of the traction substation in Yongjiapu indicated that the 8K electric locomotive may be the main reason causing the power factor of the substation to be lower under the special conditions of the institute. In order to improve this situation, an adjustable shunt capacitor compensation technique should be adopted to adapt the traction power supply system to the development and technical requirements of the commercial operation of the railway and power market in our country.