It is of great theoretical and practical significance to develop more advanced microprocessor based protective relaying set for HV transmission line based on the new theory of line protection.

• 因此,利用线路保护原理研究的新成果,以高性能硬件平台为基础,研究和开发性能更好的高压线路微机保护具有重要的理论和现实意义。