| Summary: | This paper presents a design and implementation of a certain automatic power transfer equipment adopted by a power supply system serving for nuclear industry. An integrated approach that employs techniques from engineering disciplines including failure analysis based on usage history, advanced fault detection, sensor-based condition monitoring, and power electronic control was used. The function of fast switching-over between the master and standby power supply units as faults occur in power supply system level was implemented. After the probation period of the equipment, it showed that the uninterrupted power supply function and operational reliability of the whole power supply system were well enhanced.
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