NOUFERROUS METALLURGICAL EQUIPMENT

Nowadays, the electric-dazzling phenomenon caused by short circuit fault occurs frequently in the power transformation and distribution system, which has become a major power quality problem and also a problem that troubles the normal operation of the system. When electric-dazzling occurs, contactors, frequency converters and other protective equipment will not work normally, resulting in motor shutdown, interruption of the production process, data loss, slurry accumulation in the tank, if not timely recovery, it will cause great economic losses to enterprises. In this article, the influence of contactor and frequency converter in low voltage system is analyzed deeply when electric-dazzling occurs, and two devices of anti-shake contactor and anti-shake frequency converter are proposed. Through the theoretical analysis and research of the two devices, the solution of electric-dazzling is obtained, which has a great guiding significance for the future electrical designers to solve the problem of electric-dazzling.