A dual power supply automatic transfer switching appliance

Abstract

The invention discloses professional dual-power automatic transfer switching equipment. The professional dual-power automatic transfer switching equipment comprises a mounting shell, an operating component is mounted on one side of the mounting shell, monopole components are mounted on one side of the operating component, and an auxiliary contact component is mounted on one side the monopole components. The professional dual-power automatic transfer switching equipment is scientific and reasonable in structure and safe and convenient to use, through the linkage function of the operating component, the monopole components and the auxiliary contact component, completion of switching on a first power source and a second power source is facilitated, the opening and closing speed of contacts isincreased, the rated limited short-circuit current capability is improved, and parameters of the professional dual-power automatic transfer switching equipment are improved; the contacts have no silver point structure, so that the cost of the professional dual-power automatic transfer switching equipment is reduced, and the design of the professional dual-power automatic transfer switching equipment with low cost and high parameters is realized; and the position situation of the internal contacts can be conveniently and clearly seen through the function of inspecting windows, and the use is safer.

Description

technical field [0001] The invention relates to the technical field of low-voltage electrical appliances, in particular to a dual-power automatic switch electrical appliance. Background technique [0002] Low-voltage electrical appliances are components or devices that can manually or automatically switch on and off circuits according to external signals and requirements, so as to realize switching, control, protection, detection, transformation and adjustment of circuits or non-electrical objects. The dual power automatic transfer switch is a low-voltage electrical appliance. The structure of the dual power automatic transfer switch on the market is the upper and lower contacts. Because of the repulsive force between the contacts during the contact process, the rated limit is reduced due to the existence of the repulsive force. Short-circuit current, so the rated limit short-circuit current of the snap-fit ​​contact structure will not be very high, and in order to improve p...

AI Technical Summary

Problems solved by technology

[0002] Low-voltage electrical appliances are components or devices that can manually or automatically switch on and off circuits according to external signals and requirements, so as to realize switching, control, protection, detection, transformation and adjustment of circuits or non-electrical objects. The dual power automatic transfer switch is a low-voltage electrical appliance. The structure of the dual power automatic transfer switch on the market is the upper and lower contacts. Because of the repulsive force between the contacts during the contact process, the rated limit is reduced due to the existence of the repulsive force. Short-circuit current, so the rated limit short-circuit current of the snap-fit ​​contact structure will not be very high, and in order to improve product parameters, the contacts have silver points, which increases the cost of dual-power automatic transfer switching appliances, so there is an urgent need for a dual-power automatic transfer switch electrical appliances to solve the above problems

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