Electronic transformer angular difference standard device

• Main Authors: ZHANG WEIHUA, WEI LIANGSEN, ZHOU YI, LI HANGKANG, XU LINGJIE, FANG LIANGFEI, ZHANG YUEPING, ZHU ZHONGYE, GUO PENG, HU HAOLIANG, CHEN XIAO, SHI JIXIANG, FU YUEJIANG, LYU JIFAN
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2019
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model discloses an angular difference standard device of an electronic transformer. The device comprises an optical fiber network port, an Ethernet PHY chip, a synchronization module, a DAmodule, a field programmable gate array FPGA, a microcontroller MCU and a man-machine interaction module. The field programmable gate array FPGA is used for communicating with the man-machine interaction module; receiving an instruction sent by the human-computer interaction module, and according to the instruction, controlling a synchronization module to output a synchronization signal, controlling a PHY chip to output a digital message based on an IEC61850 protocol, configuring a microcontroller MCU to generate waveform data, receiving the waveform data generated by the microcontroller MCU,outputting the waveform data to a DA module, and generating a corresponding analog waveform. According to the utility model, the delay time of the analog circuit part is determined by recording the time difference between the