Instruments & Meters

　　
　　Digital (photovoltaic, electronic) transformer as an analog to the bridge of the world to the digital world, occupies a pivotal position in the digital substation, digital (photovoltaic, electronic) transformer that is the cornerstone of the digital substation, all digital are derived from it. Therefore, accurate precision and performance of digital (photovoltaic, electronic) transformer is very important. Our metering law all the measuring instruments must be the amount of the pass, which means that all measuring instruments must be able to realize the magnitude of antedating. Therefore, the practical application of digital (optoelectronic, electronic) transformer amount biography installation at the scene also need regular check, to verify the measurement accuracy and stability, as well as the standard protocol IEC61850 International Electrotechnical supported and the Statute of correctness.