Oil-line corrosion and gas monitoring system of transformer

A gas monitoring and transformer technology, applied in the field of monitoring, can solve the problems of overheating or partial discharge failure of the oil circuit for a long time, and achieve the effect of strong applicability and simple system

Inactive Publication Date: 2016-10-05
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] The invention aims at the problem that the oil circuit of a power transformer is prone to overheating or partial discharge failure during long-term operat

Method used

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  • Oil-line corrosion and gas monitoring system of transformer
  • Oil-line corrosion and gas monitoring system of transformer
  • Oil-line corrosion and gas monitoring system of transformer

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Embodiment Construction

[0013] The oil circuit is not affected by the external electric field and magnetic field, and the resistance probe and gas sensor can be directly placed on the inner wall of the oil pipeline, so as to realize real-time online monitoring without stopping the transformer, and can find out the oil circuit and electric circuit of the transformer Internal failure. In order to express the change of transformer oil pipeline corrosion sensitively and quickly, it is required to measure the micro-ohm level change of the pipeline corrosion resistance coupon. In order to effectively suppress the corrosion when it occurs on the pipeline surface, the resolution of the measurement system must reach 1μΩ level. The probe integrated with the chip resistor includes a gas sensor, which converts the gas information in the monitored transformer oil into an electrical signal in real time; the electrical signal passes through the common communication controller with the chip resistor, and then is tra...

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Abstract

The invention relates to an oil-line corrosion and gas monitoring system of a transformer. The oil-circuit corrosion and gas monitoring system comprises a wall-hanging probe, a PC, an IC card chip and a corrosion measuring and chromatographic analysis system, wherein the wall-hanging probe comprises a resistance needle and a gas sensor, the resistance needle comprises an exposure test piece for monitoring corrosion and a closed hanging piece used as reference, resistance and gas signals acquired by the wall-hanging probe attached in an oil pipeline of the transformer are sent to the corrosion measuring and chromatographic analysis system to be under the chromatographic analysis and to calculate and display the corrosion speed, the corrosion measuring and chromatographic analysis system is communicated with and transmits data to a principal computer through an IC card, and the principal computer saves and inputs the data by using the IC card. By adopting the oil-line corrosion and gas monitoring system, the oil-loop pipeline corrosion and gas phase chromatographic online analysis is realized. The oil-line corrosion and gas monitoring system has the characteristics of simplicity, sensitivity and high practicability and is mainly applied to the field of monitoring oil loops of 500KV transformers and electric reactors.

Description

technical field [0001] The invention relates to a monitoring technology, in particular to a transformer oil circuit corrosion and gas monitoring system. Background technique [0002] Corrosion of the oil circuit will occur in the long-term operation of the oil circuit of the power transformer, and the overheating or partial discharge fault in the electric circuit can only be found by analyzing the dissolved gas in the oil sample. Contents of the invention [0003] The invention aims at the problem that the oil circuit of a power transformer is prone to overheating or partial discharge failure during long-term operation, and proposes a transformer oil circuit corrosion and gas monitoring system to realize oil circuit pipeline corrosion and gas chromatography on-line analysis. [0004] The technical scheme of the present invention is: a transformer oil circuit corrosion and gas monitoring system, including a wall-mounted probe, a PC, an IC card chip, and a corrosion measurem...

Claims

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Application Information

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IPC IPC(8): G01N35/00G01N17/04G01N30/02
CPCG01N35/00584G01N17/04G01N30/02
Inventor 刘宇宽鲁俊熊蒙马立新杨宗宪何亮薛松张建宇
Owner UNIV OF SHANGHAI FOR SCI & TECH
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