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讨论了无线通信在数字化变电站继电保护现场检验中的应用。以110 kV封周变电站主变数字化设备的继电保护现场检验为实例,具体分析了以无线通信的方式对非常规互感器和数字化主变保护回路的检验的实现方法,研究了适用于现场的无线通信方法和通信协议,探讨了远程控制、时钟同步、频率同步、远距离传输等问题的解决方案。阐述了无线通信技术推广到常规变电站的继电保护现场检验的可行性。
The application of wireless communication in the field test of digital substation relay protection is discussed. Taking the field test of relay protection of main transformer digital equipment in 110 kV Fengzhou Substation as an example, the paper analyzes the realization method of the test of unconventional transformer and digital main transformer protection circuit in the way of wireless communication, Wireless communication method and communication protocol, and discussed the solutions of remote control, clock synchronization, frequency synchronization and long distance transmission. The feasibility of extending the field of wireless communication technology to relay protection in conventional substations is expounded.