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On-site inspection device and method for dissolved gas in transformer oil on-line monitor

A technology for dissolving gas and transformer oil, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., to achieve the effect of high detection accuracy, simple structure and portability

Active Publication Date: 2017-01-18
ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to verify the accuracy of the test data of the online monitor for dissolved gas in transformer oil that has been installed and put into operation, and to improve the supervision and management level of the online monitoring device, it is very necessary to verify and verify it. Device for on-site detection by gas online monitor

Method used

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  • On-site inspection device and method for dissolved gas in transformer oil on-line monitor

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Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the on-site inspection device of the dissolved gas online monitor in transformer oil of the present invention includes a gas cylinder 1, an oil sample tank and an oil collection tank 12, the gas cylinder 1 is provided with an outlet, and the gas cylinder 1 outlet is connected to three The one-way valve 2 and the three-way valve 2 are respectively connected to the oil sample tank and the oil collection tank 12 through the air delivery pipe 3 and the oil delivery pipe 4. The oil sample tank includes a plurality of test oil sample tanks 6 and a new oil sample tank 5, and the air delivery pipe 3 Corresponding to each oil sample tank on the top, an air intake branch pipe 7 is respectively arranged, an air intake valve 8 is arranged on the air intake branch pipe 7, an elastic oil-resistant air bag 9 is arranged inside the oil sample tank, and the oil sample is contained in the elastic oil-resistant air bag 9, and the bottom outlet of the elastic oil-...

Embodiment 2

[0029] This embodiment provides a method for inspection using the on-site inspection device of the online monitor for dissolved gas in transformer oil described in Embodiment 1, including the following steps:

[0030] The first step is to open the gas cylinder 1, switch the three-way valve 2 to connect the oil delivery pipe 4, open the collection valve 13, and the pressure gas in the gas cylinder 1 will blow the residual impurities in the oil delivery pipe 4 to the oil collection tank 12;

[0031] In the second step, switch the three-way valve 2, communicate with the gas supply pipe 3, open the vacuum device 14, and vacuumize the oil supply pipe 4;

[0032] The third step is to close the collection valve 13, open the inlet valve 8 and the oil sample valve 11 at both ends of one of the test oil sample tanks 6 according to the detection requirements of the device 17 to be detected, and open the detection valve 16 at the same time, and the gas in the gas cylinder 1 passes through ...

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Abstract

The invention relates to the technical field of transformer oil analysis and inspection, in particular to a device for on-site inspection of an online monitor for dissolved gas in transformer oil. The device comprises a gas bottle and oil sample tanks, the gas bottle is connected with a three-way valve through a pipeline, the three-way valve is connected to the oil sample tanks and an oil collection tank through a gas feeding pipe and an oil feeding pipe respectively, the oil sample tanks include multiple testing oil sample tanks and a new oil tank, an elastic oil-resistant airbag is arranged inside each oil sample tank, an oil sample is contained in each elastic oil-resistant airbag, a bottom outlet of each elastic oil-resistant airbag is communicated with the oil feeding pipe, a collection valve is arranged on the oil feeding pipe correspondingly to the oil collection tank which is connected with a vacuumizing device, and an inspection branched pipe is arranged on the oil feeding pipe and connected to a to-be-inspected device through an inspection valve. The device is simple and portable in structure, suitable for on-site inspection of the online monitor for the dissolved gas in the oil and high in inspection accuracy. The invention further provides a method using the device. The online monitor for the dissolved gas in the oil can be inspected quickly, and inspection accuracy is guaranteed.

Description

technical field [0001] The invention relates to the technical field of transformer oil analysis and detection, in particular to an on-site inspection device and method for an online monitor for dissolved gas in transformer oil. Background technique [0002] With the comprehensive advancement of the condition maintenance work of power transmission and transformation equipment, more and more online dissolved gas monitors in transformer oil are used in the condition monitoring of power transformation equipment. The safety and reliability of the online dissolved gas monitor in transformer oil , stability and accuracy of measurement results directly affect the comprehensive and effective development of condition-based maintenance work. In order to verify the accuracy of the test data of the online monitor for dissolved gas in transformer oil that has been installed and put into operation, and to improve the supervision and management level of the online monitoring device, it is n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00
Inventor 祁炯苏镇西王海飞赵跃徐霄筱马凤翔袁小芳
Owner ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER
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