Development of Transformer Calibration Instrument for Substation Based on Wireless Synchronization

To solve the problems of low measurement accuracy, complicated wiring, and inconvenient portability of the current and voltage testing instruments in substations, this paper proposes a wireless synchronous substation transformer calibrator, and designs the software and hardware of the system according to its functional requirements. Based on on-site AD conversion and wireless synchronization technology, the fast acquisition and uploading of amplitude and phase of AC small current can be achieved, fundamentally solving the problems of heavy and inconvenient carrying of existing testing instruments, and the need for multiple people to cooperate in measurement, reading, and recording.