The influence of load characteristics to the relative electrical distance index is discussed and compared with the voltage stability load bus index. The equivalence of both indexes is proved.
论述了负荷特性对相对电距离指标的影响，并与电压稳定性负荷节点指标进行了比较，论证了两种方法的等价性。
Moreover, according to the relative distance between the operating point and the boundary of DSR, the index of security margin and security transition probabilities can be determined.
依据运行点距动态安全域边界的距离，还可以确定系统的安全裕度和安全转移概率等安全性指标。
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