Study Of The Condition Monitoring System Of Power Transformers Based On The LabVIEW

Theoretically the winding and core's vibration causes the power transformer tank vibration, the conditions of the winding and core may be diagnosed by analyzing the vibration signal measured from the transformer tank. In this paper, based on the transformer winding and core vibration research, assisting with the parameters of the transformer voltage, current, temperature and switch, and establishes the mutual relations between them. This method studies main on the mechanical parameters and supporting research on the electrical parameters, so that it overcomes the only research on the electrical parameters. The study involves the following aspects: the relation between winding and core vibration and their conditions, how to measure and gain the transformer body's vibration signal accurately, the vibration characteristics of transformer winding and core and their monitoring method, and the transformers condition monitoring and fault diagnosis system.Power Transformer for vibration signal characteristics, the choice of a suitable vibration sensor, design a charge amplifier output circuit and take the necessary measures, have set up a Transformer online measurement system. The system includes the data collection terminal and the remote PC. The part of data collection terminal can make data collection and data processing. The remote PC can do real-time data monitoring, trend analysis, parameter setting and state judgement. The experimental results show that this vibration monitoring system to meet the requirements of on-line measurement.This paper studies on the remote PC, and describes the method to design the monitoring system based on the LabVIEW.