Electrified detection device and method for content of water in electric insulation oil

Abstract

An embodiment of the invention provides an electrified detection device for the content of water in electric insulation oil. The device comprises an oscillation frequency counter, an oil sample constant-temperature detection cavity and a crystal oscillator; the surface of the crystal oscillator is coated with a hydrophilic coating, and the crystal oscillator is mounted in the oil sample constant-temperature detection cavity and used for generating oscillation frequencies and transmitting the oscillation frequencies to the oscillation frequency counter; the crystal oscillator is mounted in theoil sample constant-temperature detection cavity, and the oil sample constant-temperature detection cavity is used for containing the electric insulation oil; and the oscillation frequency counter isconnected with the crystal oscillator and used for recording the oscillation frequencies generated by the crystal oscillator and acquiring the content of water in the electric insulation oil accordingto the change of the oscillation frequencies generated by the crystal oscillator. An embodiment of the invention further provides an electrified detection method for the content of the water in the electric insulation oil. The method is realized by the device. According to the device and the method, under the condition that an oil sample is obtained in an electrified manner on site of electricalequipment, rapid, convenient and accurate quantitative detection of the content of the water in the electric insulation oil can be realized.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of performance detection of electrical insulating oil, and in particular to a device and method for detecting the moisture content of electrical insulating oil. Background technique [0002] The performance of electrical insulating oil is directly related to the safe operation and service life of electrical equipment. Taking transformer insulating oil as an example, the trace moisture content in transformer insulating oil is one of the main factors affecting the insulation strength of oil products. By detecting the moisture content in the transformer insulating oil, not only can the insulation strength of the transformer insulating oil be prevented from being reduced to a dangerous level, but also the overall insulation condition of the transformer can be evaluated. [0003] At present, my country's electric power industry mainly uses coulometric method and chromatography to detect...

AI Technical Summary

Problems solved by technology

The water content in the oil may change during the collection and transportation process, resulting in inconsistent measurement results with the actual state

The coulometric method also has problems such as chemical reagent contamination, which requi...

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