【摘要】 三工位开关是用于接通、隔离、接地的电气设备,操作机构是它的核心部件。原有电动操作机构不能满足工程要求,设计了一种既可手动又可电动的操作机构,大大提高了三工位开关分、合闸的可靠性,并且操作方便简单,已代替原电动机构在工程中广泛应用,取得了良好的经济效益和社会效益。更多还原

【Abstract】 Three working position switch is an electric equipment used in switching on,disconnecting and earthing,The operating machine is a key part.And the original electronic machine is far from meeting the project operating demands.This text designs one manual and electronic operating machine.It can perform manual and electronic operation.So it improves the dependability of three working position switch greatly.And it is easy to operate.It has already replaced the original operating machine to be applied with the project extensively and has attained the good economic benefits and social benefit.更多还原