| The device is an essential component of the power multiple automation system .It can remotely and real time monitor, coordinate, control the transformers and circuit breakers etc. in power automation system, and communicates with center computer, offers automation system information which automation needs, executes the instructions which center computer gives.Having put forward to the implementation above-mentioned scheme of the device based on MSP430fl49CPU. The device can also function as RTU or FTU in some key sides. The paper designs a handy and economical device which has in itself all the functions of metering, controlling, communicating, etc. and it is an intelligential device which is provided in itself all the functions of measuring date, monitoring state, controlling, protecting and remote-communicating in co-ordination with others of power protection installation and CANBUS interface, which is kept in reserve in advance. It is a component of a power protection device, and is compatible with most power equipment. It can be used in substation (below 35K.V), power department and the industry distributed system, also in the aerial line and cable circuit, electric- motor and electric generator. It is designed to work indoors and can work with some switches indoors without people.
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