Standard electronic transformer itself features include interface functions

In order not to restrict the development of CT technology, the standard for electronic transformer itself features include interface functions to achieve is not specified, it just describes a function of externally visible functions and consistency requirements. Electronic transformer with conventional electromagnetic transformer is one of the biggest difference is that the  Air circuit breaker  to provide direct digital signal, it is this difference, the substation automation system will produce a comprehensive and far-reaching impact. Electronic  mcb circuit breaker  protection devices and metering rational interface design can not only simplify the secondary equipment, and can improve overall system accuracy and reliability. It also promotes the standardization of interfaces substation automation communication control system optimization, and ultimately to achieve information sharing within the substation and system integration. First introduced digital outputs combined unit, and electronic transformer digital interface communication model. Analysis based on the standard IEC61850 substation automation integration programs, and through the process of the substation communication layer and the spacer layer specification study discusses the application of electronic  electric meter substation automation system topology obtained phased improvements. On Electronic Transformer Digital Output Characteristics doing elaborated after a set according to IEC standard digital interface solutions, and developed based on IEC61850 standard digital interfaces. Finally, Electronic Transformer digital interface with the verification, the experimental results show that the digital interface developed to meet the substation automation system communication functions for stability and real-time requirements, to meet the standard IEC60044-8 error vs. 0.2 level electronic instrument transformers limited accuracy requirements, can be applied to 0.2 electronic transformer digital output.