这是关于只能电网通信方面的文档，英文版，已经尽可能的接近全部了，里面还有关于南瑞的对IEC61850通信的解释-this is a very important file about IEC61850(PDF and English).I think it is very useful to you

这是电力系统新协议规定61850，本文档包含了所有的协议细节。含有15个文档和1个南瑞公司的PPT介绍。-This is the agreement of the power system 61850, this document contains all the details of the agreement.Contains 15 documents and a NARI PPT introduced.