Author(s)

Fuqing Huang, Weipeng Lin

Engineering & Technology Training Center , Civil Aviation University of China , Tianjin , China.

This paper aims to design a MCU-based smart contactor system, which will realize functions of real time surveillance of contactors’ work status and data exchange with host computer, thus instantly reflect different status of the system. In case of abnormal status such as over-current or under-voltage, the contactor will be able to automatically cut off power supply to protect electrical load and the circuit. Through ARINC485 bus, system computer will collect and record contactor parameters, including contact voltage, contact current, supply frequency, contact temperature and contact status to provide critical data to the examination and repair of contactors.

Aerial Contactor; MCU; Testing; ARINC485

F. Huang and W. Lin, "Design and Application of a MCU-based Smart Contactor System," Energy and Power Engineering, Vol. 5 No. 3B, 2013, pp. 1-5. doi: 10.4236/epe.2013.53B001.