General breaker run (1) operating current, the maximum operating voltage does not exceed the rated breaking current. (2) In order to avoid close in on the point of failure, causing an explosion endangering the safety of the circuit breaker, the absolute prohibition of live manual mechanical closing, or manual operation of the circuit breaker button to switch on the spot. (3) the operation of the circuit breaker, prohibiting manual mechanical or manual push button opening, when the remote control failure or too late when the remote control can operate. Automatic reclosing, automatic reclosing function should be lifted. (4) one of the following circumstances, should a power outage overhaul: abnormal noise and severe fever; after accident trip, injection serious vacuum circuit breakers, oil-blackened; breaking a short circuit interrupting capacity exceeded; breaking fault current exceeds a predetermined number; gas pressure or oil level is below the specified value. (5) prohibits the defective circuit breaker into operation. (6) indicates that, to demonstrate compliance with the circuit breaker operation. (7) that the auxiliary switch contact status and operating environment. Welcome to inquire buy! Common fault circuit breaker electrical and mechanical aspects were: electrical faults aspects: protection malfunction or improper setting value, or current, voltage transformer circuit failure; adverse secondary circuit insulation Guizhou outdoor vacuum circuit breakers, DC phylogenetic two Grounding Yunnan outdoor vacuum circuit breaker, 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; positioning screw to adjust properly, so crank arm three high; trailers spring deformation, lack of elasticity; wheel damage; trailers slope, errors or wheel to drag the shelves contact little face. Beijing outdoor vacuum circuit breakers, Huayi Electric Power (certified), vacuum circuit 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.