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近日,笔者对已新建好的台区作了以下调查对比:n1电压质量和低压电网状况n某台区改造前配变架设在自然村的南边,用户为182户,低压电网是80年代初期由用户自筹资金架设的,线路供电半径为94O米,导线截面为16平方毫米,末端用户灯峰时电压经测量为146伏.改造后配变移至负荷中心,低压电网为两路三相四线制供电方式,配变容量由SJ型3O千伏·安更换为S9型50千伏·安,低压电网的主干线路采用LGJ—50平方毫米导
Recently, the author made the following investigations and comparisons on the newly built Taiwan area: n1 voltage quality and low-voltage power grid status. Before the reconstruction of a certain district, the distribution transformer was erected on the south side of the natural village. The number of users was 182. The low-voltage power grid was established in the early 1980s by the users. Self-raised funds are set up, the line power supply radius is 94O meters, the conductor cross-section is 16 square millimeters, and the end-user lamp peak voltage is measured as 146 volts. After transformation, the distribution transformer is moved to the load center, and the low-voltage power grid is two-phase three-phase four-wire. Power supply system, distribution capacity is changed from SJ-type 3O kV ampere to S9-type 50 kV ampere, low voltage power grid trunk line is LGJ-50mm2mm