Common electrical and mechanical aspects of the breaker failure were: electrical faults aspects: protection malfunction or setting Suizhou improper vacuum circuit breaker, or current, voltage transformer circuit failure; adverse secondary circuit insulation, DC phylogenetic points ground, the DC positive and negative power supply is turned on, which is equivalent to relay action, a signal caused by tripping. Mechanical faults: tripping tripping mechanism untenable; Jiaozuo improper positioning adjustment screw vacuum circuit breakers, so crank arm three high; trailer spring deformation Xinxiang vacuum circuit breakers, lack of resilience; wheel damage; trailers slope, errors or wheel contact surface in less drag shelves. Breaker "rejecting" circuit breaker failure "rejecting" a big threat to the safe operation of the system when the device fails, tripping circuit breakers, electrical equipment will make the grade trip burn or cause the power circuit breaker is tripped, so that the disappearance of the bus voltage substation, causing widespread power outages. Therefore, we must understand the possible occurrence of "rejecting" the causes and how to take place, "rejecting" after the failure of the deal! Welcome to inquire buy! Huaibei vacuum circuit breakers, vacuum circuit breakers, power is supplied by the Xi'an Huayi 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!