7.8 Wenchuan earthquake. The heart of the disaster area, donated 47,600 yuan love and dedication since the Wenchuan earthquake occurred 7.8 years, Xian Huayi staff have enthusiastically donate their love for the disaster area, to do their modest hit people donated 20,000 yuan Xinxiang vacuum circuit breakers, power supplies: lightning overvoltage protection, and other 27,600 yuan. Donated 47,600 yuan. 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 vacuum breaker Anyang, failed to hang the hook. 6) did not return opening link. 7) organization stuck vacuum breaker, 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. Anyang vacuum breaker | Huayi Electric Power (certified) | vacuum breaker provided by Xian Huayi power plant. Xian Huayi power plant (www.xahy.com) is a leader in Xi'an, high voltage circuit breakers, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Huayi power in leadership with the staff warmly welcome all inquiries negotiations to create electricity Huayi a better future.