CAJ | 학술논문

采用有限元法仿真计算了实际线路和试验简化模拟布置情况下刚性跳线及金具表面的电场分布；并利用等效场强方法进行了特高压交流耐张塔刚性跳线及金具的电晕试验研究，研究结果表明：铝管式、鼠笼式刚性跳线以及铝管式结构的相关金具满足电晕试验要求，鼠笼式结构的相关金具不满足电晕试验要求，建议将鼠笼式结构中部分间隔棒的线夹改成与铝管式结构中的椭圆型引流间隔棒一样，户外试验场各场强对比点处的起晕场强约在28.74~31.38 kV/cm 之间。试验结果可以在其它工程中得以参考应用。
채용유한원법방진계산료실제선로화시험간화모의포치정황하강성도선급금구표면적전장분포；병이용등효장강방법진행료특고압교류내장탑강성도선급금구적전훈시험연구，연구결과표명：려관식、서롱식강성도선이급려관식결구적상관금구만족전훈시험요구，서롱식결구적상관금구불만족전훈시험요구，건의장서롱식결구중부분간격봉적선협개성여려관식결구중적타원형인류간격봉일양，호외시험장각장강대비점처적기훈장강약재28.74~31.38 kV/cm 지간。시험결과가이재기타공정중득이삼고응용。
Using finite element method the distributions of electric field on the surfaces of rigid jumpers and fittings under the conditions of actual transmission line and simplified simulated layout for the test are simulated. Using equivalent electric field strength method the corona tests on rigid jumpers and fittings for UHVAC double circuit tension support are performed, and test results show that the aluminum-tube type of rigid jumpers and squirrel cage type of rigid jumpers as well as interrelated fittings with aluminum-tube structure can meet the demand of corona test, however the interrelated fittings with the structure of squirrel cage cannot meet the demand. The corona inception field strengths at the field strength comparison points in outdoor testing field are within the range from 28.74 kV/cm to 31.38 kV/cm, and such a testing results are available for reference to other projects. It is recommended to change the clamps of partial spacers in the squirrel cage structure into the clamps of oval draught spacer in aluminum-tube structure.