It is determined in this paper that the necessary and sufficient condition existing T-routes between two integral points,and several counting formulas are given,which are related to length of T-routes satisfying certain conditions.

kg-1) on rats learning memory by means of T-maze s subject of DNMTS.

To overcome the shortcoming,this paper presents a new fault location method for teed lines,assuming the fault occurs at each of the three branches re.

Based on distributed parameter model and analysis of differential sequence circuit in Teed line, an accurate fault location algorithm for Teed line is described.

All of the fault location methods currently used for teed lines need to identify the fault section first, then convert the three-terminal line to a two-terminal line to locate the fault.

According to the characteristics of the fiber-optic current differential protection and three-terminal fault component current under the circumstances of Teed line fault,the criteria of differential protection for CSC-163T three-terminal fiber-optic current different.

Study on current compensation method of differential protection for teed lines;

Study on new criterion of current differential protection for Teed lines;

An accurate fault location algorithm for EHV teed lines is presented.