Transformer Monitoring The Terminal Data Processing And Communications Interface Design

The Transformer Test Unit is mostly used to supervise the transformer's parameters in residential areas and it can feed them back to the upper stations. It is not only able to collect the information and deal with it, but also receive the upper's commands, set parameters and transmit the information. This design is the processing and communication part of the device.In this paper, according the pratical needs and based on the study of system theory of microcontroller 80cl96kc,discussed a method to implement the Transformer Test Unit with complex programmable logic device(CPLD).Under the detailed analysis of SJA1000,the Transformer Test Unit use CAN bus to perform the communication with others.The paper discussed particular the principle and circuit implementation of the TTU's store . communication and processing.