智能高压设备是智能变电站的基础，而研发智能高压设备的基础是对变电站一、二次设备集成技术的研究。分析了智能变电站一、二次设备整合状况，简要论述了传感器及智能组件的应用集成原则。基于实际工程标准及发展趋势展望，归纳提出了涉及变压器、断路器、气体绝缘开关（gas insulated switchgear，GIS）等主要一次设备与传感器、智能组件和电子式互感器的优化集成方案。智能组件通过传感器和电子式互感器与一次高压设备形成一个有机的整体，将使高压设备具备测量数字化、控制网络化、状态可视化、功能一体化和信息互动化的智能特征，有助于智能变电站远期物理形态的影响和功能提升。

As smart high-voltage equipment is the basis of smart substation, the research on the integration of primary and secondary equipments has become the key point of the implementation of smart high-voltage equipment. The integration situation of primary and secondary equipments in smart substation is analyzed, as well as the application integration principle of sensors and intelligent components is briefly discussed. Then, the integration optimization scheme is proposed for sensors, intelligent components, electronic transducers and main primary equipments that cover transformers, breakers, gas insulation switchgears (GIS), based on the actual engineering standards and the prospect of development trends. The intelligent components are congregated and connected to the primary high-voltage equipments through sensors and electronic transducers, which makes the high-voltage equipments possess intelligent characteristics such as digital measurement, networked control, visiable condition, function integration and information interaction, therefore, the long-term physical form and function promotion of smart substation will be improved in future.