This paper solves the the problem of developing and popularizing remote auto swith in device of stand by power supply among three substations in Huangshan power suppy network.

• 结合黄山电网的具体情况提出并解决了三个变电站之间的远方备用电源自动投入装置的研制及应用推广,对提高黄山风景区的供电可靠性有着重要的政治和经济意义。