Protective device model RCS985 TV disconnection (1) The positive sequence voltage is less than 30V, and any phase current is 0.04In (2) The negative sequence voltage 3U2 is greater than 8V. If any of the above conditions is met, the delay 10S s

Recently, foreign scientists have just developed a new method, by injecting water into silicone oil, and then completing a 3D printed sculpture pipeline of another liquid in one liquid. It is possible to create a 3D structure composed entirely of l

Refrigerators are a must-have for families. There are so many refrigerator products on the market, which one is your "mr right"? In fact, the development of refrigerator products is nothing more than the development of the following technologies. As long as these tec

With the popularity of smart door locks, more and more consumers have begun to choose to buy smart locks, because smart locks look more "tall" than traditional mechanical locks in terms of appearance and use, but smart locks on the market Brands vary from good to bad.

Huawei TV seems to have more and more real hammers. At the 2018 World Internet Conference, Honor Mobile President Zhao Ming said in an interview with reporters, "We do have a TV layout, and we are currently preparing and considering it. The industry will bring some changes

On January 13th, the 40-day 2017 Spring Festival officially kicked off! Are you still waiting in line for waiting for a car, waiting for a plane, waiting for a toilet, and still can't find anyone to ask about the various information about tickets and plane tickets, so don&

With the maturity and stability of 4G, the industry has placed its future growth expectations on 5G, believing that 5G will be a gold mine with huge potential. On October 1st, Verizon took the lead in commercial 5G, marking that operators have officially begun to dig 5G gold mi

With the wide application of vacuum circuit breakers in the power industry, some vacuum circuit breakers have better performance, small maintenance and maintenance workload, and high power supply reliability. Some vacuum circuit breakers have poor performance and some problems are compared. There a

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The innovation management method of the Skunk Works has profoundly influenced the management innovation of the whole world's technology industry for decades. On November 11, 2018, the closing ceremony of the Zhuhai Air Show. At about 10:55 in the morning, a formation of fou

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When designing a PC-based data acquisition system, engineers all believe that in order to obtain better performance, they all need to use the PCI bus. In fact, this is not the case. With the continuous development of USB communication technology, t