A transformer vibration monitoring system and testing method based on wireless sensor technology

Abstract

The invention relates to a transformer vibration monitoring system based on a wireless sensing technology and a testing method. The transformer vibration monitoring system comprises a transformer vibration monitoring unit, a vibration data receiving device and computer equipment, wherein the vibration data receiving device and computer equipment are sequentially connected with the transformer vibration monitoring unit; the transformer vibration monitoring unit is used for collecting vibration signals of all measuring points on the surface of a transformer and the temperature of the transformer, the transformer vibration monitoring unit comprises a single chip microcomputer, a data sending device, a digital signal processor and an interface module, and the data sending device, the digital signal processor and the interface module are connected with the single chip microcomputer; the interface module is further connected with a three-axis acceleration sensor and a temperature sensor. The sensors are arranged on the surface of a transformer tank and not directly and electrically connected with the transformer, and detected transformer vibration acceleration time-domain signals can be simply analyzed in a spectral mode and finally stored in a data report mode. The system can be used for monitoring vibration of the transformer at all voltage classes under all operation conditions and is accurate and rapid and convenient to use.

Description

Technical field [0001] The invention relates to a transformer vibration monitoring system and a testing method based on a vibration signal analysis method based on wireless sensing technology, which can be used for power transformers of various voltage levels to test and diagnose the surface vibration characteristics of an oil tank. Background technique [0002] In the past ten years of development, my country's power construction has developed rapidly and achieved remarkable results. Among them, the installed capacity of power generation has grown rapidly, the speed of power grid construction has increased by leaps and bounds, the adjustment of power supply structure has been continuously optimized, the level of technical equipment has been greatly improved, and the effect of energy saving, emission reduction and consumption reduction has been remarkable. It poses a higher challenge. As one of the most important equipment in the power system, the normal operation of the power t...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a transformer vibration monitoring system and testing method based on wireless sensor technology that overcomes the shortcomings of the transformer vibration testing system with wired acceleration sensors, such as large wiring workload in the station, poor flexibility, and high cable cost.

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