The low voltage motor power supply system in the production site is easily affected by many factors, which cause the important load power outage in operation, and even lead to the expansion of the fault range of the power grid. It is necessary to adopt effective anti-sloshing technology to solve the problems of equipment sloshing and restarting, auxiliary frequency converter anti-sloshing and so on. This paper introduces the causes of sloshing, analyzes the adverse effects on the typical equipment power supply circuit of AC contactor and auxiliary frequency converter when the sloshing occurs in the power supply system of thermal power plant, and aims at the configuration characteristics of production equipment in thermal power plant.
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