Automatic change-over switch with manual and automatic switching mechanisms

Abstract

The invention discloses an automatic change-over switch with manual and automatic switching mechanisms. The automatic change-over switch is provided with a fixed panel and a sliding panel, the automatic change-over switch is covered with the fixed panel, and the two panels are each provided with one opening; when the sliding panel moves to a first station, the two openings do not coincide, a user cannot operate the automatic change-over switch, and the automatic change-over switch is in an automatic running state; when the sliding panel moves to a second station and the two openings coincide, the automatic running state is removed, and the user can stretch into the automatic change-over switch through a tool and rotate a transmission mechanism, thereby manually operating the automatic change-over switch; when the sliding panel moves to a third station and the two openings do not coincide, it is guaranteed that breakers on two sides are each in a switched-off state, a limiting mechanism on a motor shaft and a limiting mechanism on the sliding panel limit rotation of the motor shaft, and it is guaranteed that the automatic change-over switch cannot be switched on during outage and maintenance, it is guaranteed that maintenance is carried out safely, accidents are avoided, and manual and automatic orderly switching management is achieved.

Description

technical field [0001] The invention belongs to the field of electrical switches, in particular to an automatic transfer switch with a manual-automatic switching mechanism. Background technique [0002] The automatic transfer switch is widely used in various places that require uninterrupted power supply. It realizes the automatic transfer of the load line between the two power sources to ensure the reliability of the user's power supply. In order to realize the opening and closing conversion of two circuit breakers, what the known automatic transfer switch adopted at present is that the toggle brackets on both sides are controlled by the motor to drive the operating mechanism to move up and down alternately, and the toggle brackets drive the opening and closing of the circuit breaker switch. But there are some problems in the existing automatic transfer switch: there is no mechanism on the automatic transfer switch that restricts the user's manual or automatic operation, an...

AI Technical Summary

Problems solved by technology

But there are some problems in the existing automatic transfer switch: there is no mechanism on the automatic transfer switch that restricts the user's manual or automatic operation, and if the user makes a wrong operation, it will affect the normal power supply; on the other hand, when the automatic transfer switch is disabled When the switch is maintained, the automatic transfer switch lacks a mechanism to limit its working and closing. If the automatic transfer switch is closed, it will cause adverse consequences and even endanger the safety of personnel.

Images