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Quantitative determination method and special device of corrosive sulfur in insulating oil

A corrosive sulfur, quantitative measurement technology, applied in the field of measurement, can solve the problems of shortening the life of electrical equipment such as transformers, affecting the insulation partial discharge performance, affecting the accuracy of test results, etc., to achieve rapid installation, isolation of air effects, and rapid response. Effect

Inactive Publication Date: 2016-12-07
STATE GRID SHANDONG ELECTRIC POWER CO YANTAI CITY FUSHAN DISTRICT POWER SUPPLY CO
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Problems solved by technology

[0002] Insulating oil is an important insulating medium for oil-filled electrical equipment. The corrosive sulfur in the oil will react with metal materials such as transformer windings to form Cu 2 S deposition affects the partial discharge performance of insulation, shortens the life of electrical equipment such as transformers, and seriously affects the safe operation of equipment
[0003] At present, the detection of corrosive sulfur in insulating oil mostly adopts qualitative detection methods such as copper strips or gas chromatography to determine the dibenzyl disulfide composition in the oil, which is not very accurate. It will react with the components in the air and affect the accuracy of the test results

Method used

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  • Quantitative determination method and special device of corrosive sulfur in insulating oil
  • Quantitative determination method and special device of corrosive sulfur in insulating oil
  • Quantitative determination method and special device of corrosive sulfur in insulating oil

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Embodiment

[0040] Embodiment: a kind of quantitative determination method of corrosive sulfur in insulating oil, it comprises the steps:

[0041] 1. Sample collection:

[0042] Use a special sampler for corrosive sulfur in insulating oil (sampler for short) to collect samples of insulating oil in operation;

[0043] The described sampler for the analysis of dissolved gas in insulating oil (see figure 1 ) includes a sampler body 1-2, the sampler body 1-2 adopts a combination structure of a cylinder and a hemisphere, the sampler body 1-2 is provided with a push-pull sampler piston 1-1; the hemisphere of the sampler body 1-2 The top of the body is provided with a sample injection quick interface 1-3, and the sample injection quick interface 1-3 is respectively connected to the oil discharge port 1-4 and the sampling port 1-6 through the multi-channel sealing valve 1-5. The end of the sampler body is provided with fastening clips 1-7 that protrude from the plane of the body. The cross-sect...

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Abstract

The invention discloses a quantitative determination method and special device of corrosive sulfur in insulating oil. The quantitative determination method is that corrosive sulfur is quantitatively detected by an ultraviolet fluorescence method after silver-oil suspension liquid is oscillated with the insulating oil at constant temperature and fixed time. The special device comprises samplers, a silver-oil suspension liquid preparation and storage device and a constant-temperature oscillation reactor. The samplers realize integration of sample collectors and the reactor, without transferring samples of the insulating oil to isolate the sampling and detecting processes from external air so as to ensure the accuracy of detection results. Multi-channel sealing valves are arranged in the samplers, the samplers are provided with sole operation long handle which points to sealing ends and are simple, convenient and rapid to operate. The silver-oil suspension liquid can be conveniently prepared by the silver-oil suspension liquid preparation and storage device, and stored by isolating the air and quantitatively output.

Description

Technical field: [0001] The invention relates to a determination method, in particular to a quantitative determination method and device for corrosive sulfur in insulating oil. Background technique: [0002] Insulating oil is an important insulating medium for oil-filled electrical equipment. The corrosive sulfur in the oil will react with metal materials such as transformer windings to form Cu 2 S deposition affects the partial discharge performance of insulation, shortens the life of electrical equipment such as transformers, and seriously affects the safe operation of equipment. [0003] At present, the detection of corrosive sulfur in insulating oil mostly adopts qualitative detection methods such as copper strips or gas chromatography to determine the dibenzyl disulfide composition in the oil, which is not very accurate. It will react with the components in the air and affect the accuracy of the test results. Invention content: [0004] The purpose of the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/14G01N21/64
CPCG01N1/14G01N21/64
Inventor 田韶楠王瑞姜全红朱豪张菁刘晓玲唐晓张瑞杰张凌燕宋玮
Owner STATE GRID SHANDONG ELECTRIC POWER CO YANTAI CITY FUSHAN DISTRICT POWER SUPPLY CO
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