电力系统继电保护原理 meaning in Chinese

power system relay protection
principle of electrical system's relay protection

Principle of electrical system ' s relay protection
电力系统继电保护原理
Power system relay protection
电力系统继电保护原理
Power system relay protection
电力系统继电保护原理
Matti lehtonen , tapio hakola . neutral earthing and power system protection [ m ] . abb transmit oy publication , vaasa , finland 1996
贺家李,宋从矩.电力系统继电保护原理[ m ] .北京：中国电力出版社， 2001
The developmental requirement of power systems and the continuous appearance of new technology are the source of the evolution of the theory and technology in relay protection of power systems . with the development of computer technology , relay protection has entered into digital age
电力生产发展的需要和新技术的陆续出现是电力系统继电保护原理和技术发展的源泉，计算机技术的发展，使得继电保护已从电磁型、整流型、晶体管型、集成电路型进入了数字型的时代。