发电机-变压器-线路接线的系统保护及光纤通道设计

Design of System Protection and Fibre-Optic Channel for Generator-Transformer-Line Unit

在分析一次系统接线的基础上，针对电厂扩建工程中的发电机-变压器-线路接线形式，阐述了系统保护专用光纤系统的设计以及220kV及110kV系统保护的配置和设计思想，介绍了系统保护与发电机-变压器保护的配合设计要点，提出为保障发电机和电网的安全稳定运行所应采取的措施。

On basis of an analysis of primary system connections,it presents the design ideas of fibre-optic system for system protection and configurations of 220 kV and 110 kV system protection in the expansion project of a power plant. The main points of coordinated design between system protection and generator-transformer protection are introduced. Furthermore,it is suggested that some steps should be taken to ensure the safe and stable operation of generator and power system.