Improve the dual power supply automatic transfer switch certification system

The dual power supply automatic switching switch is actually a kind of switch with relatively perfect working performance and high degree of automation. The dual-power automatic switch is actually to ensure the continuity of the power supply of the important electric load device. In this case, the power supply can be well served. For some devices, the power cannot be turned off. Many programs need to be restarted after the power is cut off. This is very time consuming. In such a large market environment, automatic power switching devices are widely used.

In recent years, the dual-power automatic switch has developed rapidly in China, and the future has been bright all the way. It has mainly experienced three links. From contactors to molded case circuit breakers/load disconnectors, and finally to integrated automatic transfer switch appliances, the products are progressing in constant thinking and improving in constant opinions. The first generation of contactors, this kind of power switching Stone uses the contactor as the switching component. The working principle is that the switching function uses the intermediate relay or the logic control module to form the secondary loop to complete the control function, which is generally a non-standard product, but Soon, in the user name, the product is easy to heat up, contact bonding and coil burnout. This is mainly caused by the structural characteristics that the main circuit contactor needs long-term energization of the secondary circuit, and because it is a non-standard product, it has more original components. So the cost is also relatively high. Dual-power automatic transfer switch, whether imported or domestically produced, must be 3C certified for sale in China. A lot of large enterprises: Wanda, Greenland, Volvo, Suning Tesco and other electrical accessories are considered this aspect.

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