Automatic conversion switch having neutral line overlapping function

Abstract

An automatic conversion switch having a neutral line overlapping function is characterized by comprising a first contact group and a second contact group, wherein the first contact group is connectedwith a main power supply and a load, the second contact group is connected with an emergency power supply and the load, and the automatic conversion switch is in a state that a neutral pole of the first contact group and a neutral pole of the second contact group are simultaneously closed while a phase pole of the first contact group and a phase pole of the second contact group are simultaneouslydisconnected during the conversion process from the closing connection state of the first contact group to the closing connection state of the second contact group. The whole automatic conversion switch is simple and efficient in structure and is stable and reliable, and a high-quality continuous voltage during the switching process of a power supply can be provided; and moreover, by modular design and installation, production, manufacturing, maintenance and replacement are facilitated, and the application cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of low-voltage electrical appliances, and in particular relates to an automatic transfer switch with a neutral line overlapping function. Background technique [0002] With the development of society, people's requirements for the power grid and its power transmission and distribution process are gradually increasing. In some important power distribution occasions, the power supply system is required to ensure continuity, to ensure the safety of power consumption and uninterrupted production and life. ; The automatic transfer switch has two or more sets of contact systems independent of each other, which can control the on / off of the main power supply and the backup power supply connected to them under the action of the controller, so that the power transmission and distribution lines are connected between the main power supply and the backup power supply. Switching between backup power sources; therefore, a...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an automatic transfer switch with a function of neutral line overlap in view of the above-mentioned technical defects of low stability of the existing automatic transfer switch, so that the automatic transfer switch has a neutral pole of a power supply during the power conversion process. The neutral pole of another power supply is connected at the same time, and their phase poles are not connected; at the same time, when one circuit is connected, the other circuit cannot be connected, so as to realize the function of automatic transfer switch sexual demands

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