Publisher's Synopsis
The power system is an organic whole composed of power plants, grids and power users, completing the whole process from generation, transmission, distribution to electricity use. The development of the combined power system has a series of advantages, such as economic dispatching, complementary surplus and deficiency, rational utilization of resources, enhanced reliability of power supply, reduced system reserve capacity and use of large capacity generating units. The abnormal running state and failure of the power system may cause system accidents. Relay protection must be relied upon to prevent system accidents. It can quickly react the failure or abnormal operation state of the electrical equipment in the power system.
