本文对电力系统自动化装置时钟统一的要求与现状做了分析和阐述，对于GPS在时钟统一问题上的应用做了可行性研究。
The requirement and current state of clock synchronism of automatic devices in power system are analyzed and described, and a feasibility study is made on the application of GPS in clock synchronism.
为了更好地与电力系统其他装置通信、便于操作、优化控制效果，引入了上位机和VQC软件，使人机界面更加友好。
For better communicating with other communication device, convenient operation, improving control effect, upper computer and VQC software is adopted, it make man-machine interface more friendly.
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