(1) Control function According to the needs of the operation of the power system, part or all of the electrical equipment and part or all of the lines are put into or out of operation. (2) Protection When a certain part of the power system fails, it cooperates with protection devices and automatic devices to quickly remove the faulty part from the system, reduce the scope of power outages, prevent the expansion of accidents, protect various electrical equipment in the system from damage, and ensure the system Safe operation of trouble-free parts. (1) Under normal conditions, safely and reliably control the input and withdrawal of various electrical equipment and power lines. (2) When various electrical equipment and power lines in the power system fail, cooperate with relay protection devices, automatic reclosing devices and other safety automatic control devices to quickly cut off the fault current and remove the faulty part from the power grid. , Reduce the scope of accidental power outage, and ensure the stable and safe operation of the trouble-free part of the power grid. (3) It should be a good conductor in the closed state, and it should be able to withstand the thermal and mechanical effects of not only the normal current, but also the short-circuit current. (4) Good insulation performance to ground, phases and fractures. (5) At any time in the closed state, it should be possible to disconnect the current below the rated breaking current in the shortest possible time under the condition of no dangerous overvoltage. (6) At any moment in the open state, it should be possible to safely close the current in the short-circuit state in a short period of time under the condition that the contacts are not welded. (7) There are many types of high-voltage circuit breakers, which are very special compared with electrical equipment such as generators and transformers, indicating that the technical research and development of high-voltage circuit breakers is still in the development stage, and has not yet reached a centralized single principle and type. At the level of perfection, some theories, materials, principles, etc. are still under further study, and belong to "young equipment." Therefore, when choosing a high-voltage circuit breaker, you should choose the corresponding variety of high-voltage circuit breakers according to different use places and different use requirements for product performance, reliability, and economy. Industrial Diesel Generator,Industrial Generators,Commercial Diesel Generators,Industrial Type Diesel Generator Jiangsu Vantek Power Machinery Co., Ltd , https://www.vantekpower.com
var videoObject = {container:'.video', variable:'player', autoplay: true, html5m3u8: true, video: "https://vdse.bdstatic.com//f2a95c830bb17be958eb9226bc7395e3?authorization=bce-auth-v1%2Ffb297a5cc0fab434cdd9717b8 %2F2017-05-11T09%3A02%3A31Z%2F-1%2F%2F449301c84d937b918acfb4ea9a661a72b5341cf28a67b0a7d561c8b66a76db91" }; if (!! window.ActiveXObject) { high voltage player videoObject.html5m3u8 = false} player videoObject.html5m3u8 = false} The role of the circuit breaker
May 13, 2023