The Research in the Distributed Wireless Measurement and Recording System Based on Synchronous Acquisition Technique for Start Debugging Process of EHV/UHV Transformer Substation

Abstract

Due to the low efficiency of preparation, long-distance electrical wiring easily causing safety accidents and difficult to correlate the current and voltage signal data during the start debugging process of UHV/EHV transformer substation, a set of high-precision distributed wireless measurement and recording system for multiple nodes is developed. The current and voltage signals of the substation are collected by each node, and the clock synchronization is realized by using GPS/BD synchronous timing. Then the signal is transmitted wirelessly to the upper computer to realize the transient state waveform recording and other functions. The test shows that the sampling rate of the system can reach more than 200ksps, and it can obtain the transient waveform and equipment state of each site not only in real time but intuitively.