变电站通信网络和系统讲座文档，清晰解释了61850协议与原有协议的不同。-Substation communication networks and systems document lectures, clear explanation of the 61850 protocol agreement with the original difference.

变电站通信网络和系统 第六部分：与变电站相关的IED的通信配置描述语言 (iec 61850-6) -Substation communication networks and systems Part VI: associated with the substation IED configuration descr iption language of communication (iec 61850-6)

变电站通信网络和系统 第五部分：功能通信要求和装置模型 (iec 61850-5) -Substation communication networks and systems Part V: Communication requirements for functions and device model (iec 61850-5)