Vacuum circuit breakers are generally divided into a plurality of voltage levels. Low type generally used for explosion-proof electrical use. Like mine, etc. The main structure of the vacuum circuit breaker consists mainly of three parts: a vacuum interrupter, electromagnetic or spring actuator, brackets and structure of his parts. Vacuum breaker breaker technical standards in our country over the past decade has been vigorous development. Products from the past ZN1 ~ ZN5 several varieties grown to more than tens of models, variety, rated current up to 5000A, 50kA breaking current reaches a good level of high-voltage vacuum circuit breakers, and has grown to voltages up to 35kV grade. Before the 1980s, the vacuum breaker at the initial stage of development, technology continues to explore, develop technical standards can not be until 1985 before the development of relevant product standards. Welcome to inquire buy! Common faults and mechanical failures of electrical circuits are described as follows. 1, 2 electrically common failure, mechanical failure of one common) actuator rod fall off. 2) closing the core jam. 3) After opening the circuit breaker mechanism not revert to the pre-engagement position. 4) trip trip mechanism. 5) closing the solenoid operating voltage is too high voltage vacuum circuit breaker, Henan, failed to hang the hook. 6) did not return opening link. 7) organization stuck in Liaoning high-voltage vacuum circuit breakers, connecting portion of the shaft pin off, so that organizations empty fit. 8) sometimes several times in a row to make switching action breaker closing, then the Department of auxiliary switch normally closed contacts to open prematurely. Hunan high-voltage vacuum circuit breakers | high voltage vacuum circuit breaker | Huayi electricity provided by Xian Huayi power plant. Xian Huayi power plant (www.xahy.com) strong, credible, in Xi'an high-voltage circuit breakers and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Huayi power and you hand into the brilliant, for a better future!