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Novel full-life maintenance-free gas chromatogram online monitoring device in transformer oil

A transformer oil and monitoring device technology, applied in the electronic field, achieves the effects of moderate price, high precision, and guaranteed measurement accuracy

Inactive Publication Date: 2020-03-06
南京力通达电气技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a new type of full-life maintenance-free gas chromatographic on-line monitoring device in transformer oil, which solves the problem of no need to replace the carrier gas, Technical issues for maintenance-free use without manual calibration

Method used

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  • Novel full-life maintenance-free gas chromatogram online monitoring device in transformer oil
  • Novel full-life maintenance-free gas chromatogram online monitoring device in transformer oil
  • Novel full-life maintenance-free gas chromatogram online monitoring device in transformer oil

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Embodiment Construction

[0028] Such as Figure 1-Figure 7 A novel full-life maintenance-free transformer oil gas chromatographic on-line monitoring device is shown, including an electrical cabinet 1, which is equipped with two stainless steel carrier gas cylinders 2, sample gas cylinders 3, switching power supply 5, and terminal blocks 7 , air switch 6, main CPU board 4, gas detection module 8, gas separation module 9 and oil-gas separation module 10, two described stainless steel carrier gas bottles 2 are respectively provided with a first pressure reducing valve and a second pressure reducing valve, Both the first pressure reducing valve and the second pressure reducing valve are connected to the gas separation module 9 through a connector, the sample gas cylinder 3 is provided with a third pressure reducing valve, and the third pressure reducing valve is connected to the gas separation module 9 through a connector;

[0029] The 10 pieces of oil-gas separation module are used to separate the oil sa...

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Abstract

The invention discloses a novel full-life maintenance-free gas chromatogram online monitoring device in transformer oil, and belongs to the technical field of electronics. The online monitoring devicecomprises an electric appliance cabinet, wherein two stainless steel carrier-gas cylinders, a sample gas cylinder, a switching power supply, a wiring terminal, an air switch, a main CPU (central processing unit) board, a gas detection module, a gas separation module and a gas-oil separation module are arranged in the electric appliance cabinet. In cooperating with the linearity sensor and a follow-up type automatic peak-catching technology, the gas chromatogram online monitoring device in the transformer oil can realize maintenance-free use without carrier gas change and manual calibration inthe service cycle of the device, the reliability is higher, and the price is moderate. The unattended operation of the online monitoring of the transformer is realized in true sense, and the monitoring device is extremely suitable for the implementation of the intelligent transformation project of the transformer substation.

Description

technical field [0001] The invention belongs to the field of electronic technology, and in particular relates to a novel full-life maintenance-free gas chromatographic on-line monitoring device in transformer oil. Background technique [0002] There are several different monitoring principles for on-line monitoring of oil-immersed transformer status. The most commonly used ones are gas and water content monitoring in oil, internal partial discharge monitoring, core grounding current and so on. At present, the most widely used online monitoring equipment is the online monitoring system of gas in transformer oil. According to the incomplete statistics of the use of transformer online monitoring equipment by State Grid Corporation in 2015: the analysis of gas in oil can find heating and discharge faults inside the transformer. . More than 50% of transformer failures are detected by abnormal gas in oil. It can be seen that gas analysis in oil plays a key role in discovering eq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/88
CPCG01N30/88G01N2030/8881
Inventor 周正超王超何红军翟志华朱洋凯张善成孔亚辉
Owner 南京力通达电气技术有限公司
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