For solving the unbalanced loads the concept of the virtual rigidity is introduced to take account of the tension stiffening effect .

求解 释放荷载过 狴中引入虚拟刚度概念，用以 摸拟拉伸硬化效应。

To ensure reliable no-action of differential protection on external short-circuit fault the increasing of unbalanced current should be taken into account in maximal unbalanced current calculation which is caused by only restraining the ratio error of current transformer .

为保证差动保护区外短路故障时可靠不动作，在计算最大 不平衡电流时应 考虑仅限制电流互感器变比误差导致不 平衡电流增大因素。