主要对智能变电站中的电子式互感器、真空度传感器和短路接地故障传感器的技术特点、应用场合和适用范围作了论述,指出电子式互感器具有无磁饱和、动态响应好等特性,但其可靠性较差也是在应用中值得注意的问题。真空度传感器由于具有很好的性价比,已经具备大面积推广价值;短路故障传感器可以准确检测变电站具体出线短路的位置,并且能对预故障状态做出提示,对供电可靠性提高会有很大帮助。 Mainly on the intelligent substation electronic transformer, vacuum sensor and short-circuit ground fault sensor technical characteristics, applications and scope of application is described, and pointed out that the electronic transformer with no magnetic saturation, good dynamic response and other characteristics, but its Poor reliability is also a noteworthy issue in the application. Vacuum sensor has a good value for money, has a large area to promote value; short-circuit fault sensor can accurately detect the substation specific outlet short circuit position, and can make a warning on the pre-fault status, the reliability of the power supply will be greatly helped .