Based on study of the telecontrol protocol of the power system and the Public Switching Telephone Network (PSTN), it is proposed that after appropriate modification channels for power system communication can be established by using PSTN.

• 摘要通过对电力系统远动规约和公话交换网的研究，提出理论模型，即通过公话交换网建立通道，并将其用于电力系统通信通道，经过适当改进，运用于实际工程中，得到了满意的结果。