Research on On-line Monitoring and Regulation Technology of Pressure of High Voltage Transformer

Abstract

Abstract In order to analyze the operating status of voltage and current transformers at high voltage levels, the methods of detecting transformer insulation level and infrared temperature are usually used, but such methods usually use manual measurement by portable instruments, and the internal defects of the transformer are difficult to find in time. This article proposes a suitable on-line monitoring method and regulation technology for the insulation oil pressure of high voltage transformers. The defects of the transformer can be judged by the change of the internal oil pressure, which can effectively find faults such as internal short-circuit, degradation, and partial discharge of the transformer. A mechanism is designed to adjust and release the pressure of expanders. The high voltage transformer pressure line monitoring device has developed based on the Internet of Things communication and solar power supply mode, which can monitor the internal operating status of the transformer in real time. When the internal pressure of the transformer suddenly increases, the designed pressure release structure of the expander will automatically rupture, release the internal pressure of the transformer, ensure the safety of the transformer body, and reduce the impact of the accident.