作者基于传输线的节点导纳方程考虑了故障时串补装置的状态，提出了一种适用于串补线路的故障定位算法。
On the basis of nodal admittance equation and the state of compensating device while fault occurs, a fault location algorithm suited to series compensation transmission lines is proposed.
第一步用线路损耗对支路导纳的灵敏度来近似计算打开开关引起的网络有功损耗增量，以此确定应打开的环路上的支路开关；
First step, it uses the real power loss sensitivity with respect to the conductance of candidate branches to decide the real power loss which decides which loop switch should be opened.
提出了采用测量线路零序导纳进行接地保护的新原理，讨论了直线式导纳继电器的接地保护判据。
New principle for feeder grounding fault protection based on zero sequence admittance is presented in this paper. Criterions for the line ground relay with zero sequence admittance are also discussed.
应用推荐