直线杆塔两侧导线覆冰厚度的改进称重法

Measurements for Improving Weight on Both Sides of Perch's Ice Thickness of the Wire

当直线杆塔前后两个档距相差过大时,会极大的影响称重法测量输电线路覆冰厚度的准确性。在传统称重法计算输电线路导线覆冰厚度模型的基础上,采用覆冰前后导线长度的变化,加以主杆塔两侧倾斜角度的测量,建立新的数学模型,可分别求解直线杆塔两侧导线的覆冰质量,以此进一步计算出导线的覆冰厚度,可避免因直线杆前后档距过大使计算误差过大的影响。通过搭建模拟实验,验证了该改进称重法的准确性相对较高。

When the span between the two straight towers is two long, it will tremendously affect the weighing measurement accuracy of the transmission line ice thickness. Based on the traditional weighing method to calculate the ice thickness of the conductor, to measure the difference of transmission line length before and after ice loading, as well as the inclining angle of both sides of the main tower, then builds new mechanical model to solve the ice weight on transmission lines on both sides of the main tower. Finally, it＇s able to calculate the thickness of ice loading. It can avoid calculation error is too big by the span between the two straight towers is two long. Through constructing analog transmission lines and multiple sets of experiments, validate the improved accuracy of the weighing method is relatively high.