KR20100041370A - Gas extraction apparatus of transformer insulating oil - Google Patents

Gas extraction apparatus of transformer insulating oil Download PDF

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KR20100041370A
KR20100041370A KR1020080100523A KR20080100523A KR20100041370A KR 20100041370 A KR20100041370 A KR 20100041370A KR 1020080100523 A KR1020080100523 A KR 1020080100523A KR 20080100523 A KR20080100523 A KR 20080100523A KR 20100041370 A KR20100041370 A KR 20100041370A
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gas
transformer
insulating oil
oil
extractor
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KR101012463B1 (en
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남창현
박현주
황선진
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한국전력공사
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling

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  • Engineering & Computer Science (AREA)
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Abstract

PURPOSE: A gas extraction apparatus for the insulating oil of a transformer is provided to measure gas extraction and improve the reliability of the measurement. CONSTITUTION: A gas extraction apparatus for the insulating oil of a transformer comprises an oil inlet(3), oil outlet(8), and gas extractor(7). A pipe of the oil inlet is connected to the gas extractor. The gas extractor comprises a heater(4) and capillary tube membrane(5). An electronic valve(1a) and oil pump(2) are connected to the transformer. A gas storage unit(9) is divided by a capillary tube membrane of the gas extractor. The gas storage unit comprises a gas outlet(6a) and gas inlet(6b).

Description

변압기 절연유의 가스추출장치{Gas extraction apparatus of transformer insulating oil}Gas extraction apparatus of transformer insulating oil

본 발명은 운전중인 대전력용 변압기 절연유의 이상유무에 대한 상태진단을 위해 사용되는 변압기 절연유의 가스추출장치에 관한 것으로, 더욱 상세하게는 광음향(Photo-Acoustic)방식을 이용하여 변압기 절연유의 이상가스를 상시적으로 측정할 수 있도록 이루어진 변압기 절연유의 가스추출장치에 관한 것이다.The present invention relates to a gas extraction device of a transformer insulating oil used for diagnosing the state of abnormality of the transformer insulating oil for a large power in operation, and more specifically, to the abnormality of the transformer insulating oil using a photo-acoustic method. The present invention relates to a gas extraction device for transformer insulating oil, which can measure gas at all times.

운전중인 대전력용 변압기의 이상유무에 대한 진단상태를 목적으로 활용되고 있는 변압기 절연유 중 가스 측정방법은, 예를 들어 가스 크로마토 그래피방식, ET-IR방식, 가스센서방식 등 여러 가지가 적용되고 있으나, 장치가 복잡하고 유지관리가 까다로워 현장 설치형으로는 적합하지 않을 뿐만 아니라, 가격도 상대적으로 고가여서 널리 활용되지 못하고 있는 실정이다.Gas measuring method of transformer insulating oil which is used for diagnosis of abnormality of the large power transformer in operation is applied, for example, gas chromatography method, ET-IR method, gas sensor method, etc. In addition, the device is not suitable for the field installation type because of the complex and difficult maintenance, and the price is relatively high, so it is not widely used.

한편, 광음향방식의 가스측정은 적외선 검출기의 한 분야로서, 기체는 고유의 흡수 스펙트럼이 존재하므로 이를 이용하여 측정하고자 하는 가스를 기준으로 광흡수 필터를 이용하여 측정할 수 있으며, 가스에 따른 어떠한 성분이 혼합되어 있어도 특정가스의 검출이 가능하고 가스의 농도 역시 측정이 가능한 장점을 갖추 고 있다.On the other hand, the photoacoustic gas measurement is a field of the infrared detector, since the gas has a unique absorption spectrum can be measured using a light absorption filter based on the gas to be measured using it, Even if the components are mixed, it is possible to detect a specific gas and to measure the gas concentration.

이 같은 광음향방식의 가스측정은 이미 공지된 바와 같이 도 4를 참조로 설명하면, 적외선 소스(201)로부터 적외선 대역의 광대역(Broad band) 파장을 발생시키고, 파라볼릭 거울(202)을 이용하여 분석 체임버(203)에 집중시킨다.As described above, the photoacoustic gas measurement is described with reference to FIG. 4, and generates a broad band wavelength of the infrared band from the infrared ray source 201 and uses the parabolic mirror 202. Focus on the analysis chamber 203.

직류 내지는 광전류를 변조하는 장치인 초퍼휠(204, Chopper Wheel)은 빛 소스에 스트로보 효과를 주도록 일정한 속도로 회전하고, 빛 소스가 측정 마이크로폰(205)에 도달하기전 필터 휠(206)의 광필터 중에 하나를 통과하며, 이 광필터들은 찾고자하는 성분 중의 하나에서 여기(勵起)하도록 특정파장을 투과시킬 수 있도록 되어 있다.The chopper wheel, a device for modulating direct current or photocurrent, rotates at a constant speed to give a strobe effect to the light source, and the optical filter of the filter wheel 206 before the light source reaches the measurement microphone 205. Through one of these, these optical filters are designed to transmit a specific wavelength to excite one of the components to be found.

광음향 효과는 가스가 전자기파(예를 들어, 적외선)를 흡수하는 효과로 인해 발생하며, 복사에너지를 흡수하면 가스의 온도는 상승하고, 만일 가스가 밀폐된 공간에 있다면 그 온도와 상대적으로 압력이 증가하게 되는데, 이때 밀폐용기 내의 압력에 의해 가스가 요동치게 되며, 압력 웨이브는 고감도 마이크로폰(205)에 의해 검출되어 측정되어 진다.The optoacoustic effect is caused by the gas absorbing electromagnetic waves (e.g. infrared rays), and when it absorbs radiant energy, the temperature of the gas rises, and if the gas is in a confined space, the pressure In this case, the gas is oscillated by the pressure in the closed container, and the pressure wave is detected by the high sensitivity microphone 205 and measured.

이렇게 상기 마이크로폰(205)에서 측정된 파장은 측정셀(Photo acoustic Spectro meter)에서 크기가 측정되고 변환되어 가스의 농도로 측정되는데, 도 5에 도시된 그래프에서는 측정된 변압기 절연유의 고장가스 적외선 스텍트럼의 한 예를 나타낸 것으로, 파장의 면적을 산출하여 가스의 농도로 환산되어 진다[도 5의 그래프에서 가로축은 파장(Wave length)이고 세로축은 흡수량(Absorbance)이다].The wavelength measured by the microphone 205 is measured by the size of the measurement cell (Photo acoustic Spectro meter) and converted to the concentration of the gas, in the graph shown in Figure 5 of the measured fault gas infrared spectrum of the transformer insulating oil As an example, the area of the wavelength is calculated and converted into the concentration of the gas (in the graph of FIG. 5, the horizontal axis is wavelength and the vertical axis is absorption).

이 같은 광음향방식을 이용한 종래 변압기 절연유의 가스추출 측정시스템은 도 3에 도시되어 있는바, 측정하고자 하는 절연유 시료 중에 용존된 가스를 측정하기 위해서 먼저 가스를 추출하는 것이 중요하다.The gas extraction measurement system of a conventional transformer insulating oil using the photoacoustic method is shown in Figure 3, it is important to first extract the gas in order to measure the dissolved gas in the insulating oil sample to be measured.

이를 위해서 변압기에서 실린더를 이용하여 절연유(111)를 채취하고 공기를 제거한 후 시료 채취병(112) 내부에 주입한다.To this end, the insulating oil 111 is collected by using a cylinder from a transformer, air is removed, and then injected into the sampling bottle 112.

여기서 채취된 절연유 시료의 온도가 편차범위 내에 있게 되면 즉시 시험을 시행하고 편차범위 밖에 있으면 약간의 대기시간을 갖으면서 대기한다.If the temperature of the insulating oil sample is within the deviation range, the test shall be carried out immediately and if it is outside the deviation range, wait with a slight waiting time.

시료 채취병(112)의 절연유(111)를 마그네틱이 바로 휘젖고 이 시료 채취병(112)의 이용하여 루프호스(115)를 통해 가스측정부(110)로 보내준다.The magnetic oil immediately stirs the insulating oil 111 of the sampling bottle 112 and sends it to the gas measuring unit 110 through the loop hose 115 using the sampling bottle 112.

그러면 상기 가스측정부(110)에서는 앞서 설명한 광음향방식에 의해 가스가 분석되고 일정시간(약 15 ~ 20분) 후에 수분을 포함한 8종류의 가스(수소, 메탄, 에탄, 에틸렌, 아세틸렌, 일산화탄소, 이산화탄소, 수분)의 분석결과가 모니터(116)와 프린터(117)에 의해 디스플레이 되어 인쇄 출력되어 진다.Then, in the gas measuring unit 110, the gas is analyzed by the photoacoustic method described above, and after eight hours (about 15 to 20 minutes), eight kinds of gases including water (hydrogen, methane, ethane, ethylene, acetylene, carbon monoxide, Carbon dioxide, moisture) analysis results are displayed by the monitor 116 and the printer 117 is printed out.

이러한 광음향방식을 이용한 종래 변압기 절연유의 가스추출 측정시스템에서 가스추출을 위해 변압기 절연유 시료를 측정자가 변압기에서 절연유를 주사기와 같은 실린더를 이용하여 직접 일정량 채취하여 시료 채취병(112)에 넣고 마그네틱 바를 이용하여 가스를 추출한 후, 측정시험이 끝나고 채취한 절연유 시료를 다시 변압기에 집어 넣어야 하는 등 변압기 절연유의 가스추출을 하기 위해 작업이 번거롭고, 절연유 시료채취 중에 이물질 등이 침투할 우려가 커서 측정 신뢰성이 떨어지는 문제점이 제기되어 왔다.In order to extract the gas in the conventional gas extraction measurement system of the conventional transformer insulating oil using the photoacoustic method, the measurer collects a certain amount of insulating oil directly from the transformer using a cylinder such as a syringe, and puts it in the sampling bottle 112 to place the magnetic bar. After extracting the gas by using the gas, it is cumbersome to extract gas from the transformer insulating oil after putting the sample of the insulating oil collected into the transformer again. Falling problems have been raised.

이에 본 발명은 상기와 같은 종래 문제점을 해결하기 위해 발명된 것으로, 광음향방식의 변압기 절연유의 가스추출 측정시 변압기의 절연유 채취가 자동으로 이루어지고 용해가스를 가스추출기를 통해 가스측정부로 자동으로 보내어 가스측정이 이루어짐에 측정 신뢰도 향상과 상시 측정이 가능한 변압기 절연유의 가스추출장치를 제공함에 그 목적이 있다.Therefore, the present invention has been invented to solve the conventional problems as described above, when the extraction of the insulating oil of the transformer of the photoacoustic transformer insulating oil is automatically made and the dissolved gas is automatically sent to the gas measuring unit through the gas extractor It is an object of the present invention to provide a gas extraction device for transformer insulating oil that can improve measurement reliability and always measure the gas measurement.

상기와 같은 목적을 달성하기 위한 본 발명은 변압기 내부의 절연유 시료를 채취하여 이의 용해가스를 광음향방식을 이용한 가스측정부로 보내는 변압기 절연유의 가스추출장치에 있어서, 상기 변압기에서 절연유를 뽑아내기 위해 오일입구에는 전자밸브와 오일펌프가 설치되어 있으며, 이 오일입구의 배관은 히터와 모세관 멤브레인을 갖춘 가스추출기에 연결되고, 이 가스추출기에 채취된 절연유를 다시 변압기로 보내기 위해 전자밸브를 갖춘 오일출구의 배관이 연결되어 이루어진 구조로 되어 있다.The present invention for achieving the above object is in the gas extraction device of the transformer insulating oil taking a sample of the insulating oil in the transformer and sending the dissolved gas to the gas measuring unit using the photoacoustic method, the oil to extract the insulating oil from the transformer The inlet is equipped with a solenoid valve and an oil pump. The oil inlet is connected to a gas extractor with a heater and capillary membrane. The pipe is connected.

상기와 같은 본 발명에 따른 변압기 절연유의 가스추출장치는 종래장치에 비해 휴대할 수 있으면서 상시 가스추출 측정이 가능하고, 가스추출 측정 신뢰도를 향상시키는 이점을 갖는다.As described above, the gas extraction apparatus for transformer insulating oil according to the present invention is portable, compared to the conventional apparatus, and can always perform gas extraction measurement, and has an advantage of improving gas extraction measurement reliability.

이하, 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

본 발명은 광음향방식을 이용한 가스측정부(10)에서 변압기(도면에 미도시) 절연유의 가스분석을 위해 이 가스측정부(10)로 절연유의 용해가스를 추출하여 보내는 변압기 절연유의 가스추출장치로서, 도 1은 본 발명이 설치되는 변압기 절연유의 가스추출 측정시스템의 전체 구성도를 나타내고, 도 2는 본 발명의 핵심인 가스추출장치의 상세도면을 나타내고 있다.The present invention is a gas extraction device of a transformer insulating oil to extract the dissolved gas of the insulating oil to the gas measuring unit 10 for gas analysis of the transformer (not shown in the figure) in the gas measuring unit 10 using the photoacoustic method 1 shows an overall configuration diagram of a gas extraction measuring system of a transformer insulating oil in which the present invention is installed, and FIG.

본 발명은 변압기 내부의 절연유 시료를 채취하여 이의 용해가스를 광음향방식으로 가스를 측정하는 가스측정부(10)로 보내는 변압기 절연유의 가스추출장치에 있어서, 상기 변압기에 연결되는 전자밸브(1a)와 오일펌프(2)를 갖춘 오일입구(3)의 배관(3a)은 히터(4)와 모세관 멤브레인(5) 및 가스출입구(6a,6b)를 갖춘 가스추출기(7)에 연결되고, 이 가스추출기(7)에 채취된 절연유를 다시 변압기로 보내기 위해 전자밸브(1b)를 갖춘 오일출구(8)의 배관(8a)이 연결되어 이루어진 구조로 되어 있다.The present invention is a gas extraction device of the transformer insulating oil taking a sample of the insulating oil in the transformer and sends the dissolved gas to the gas measuring unit 10 for measuring the gas in a photoacoustic method, the solenoid valve (1a) connected to the transformer And the pipe 3a of the oil inlet 3 with the oil pump 2 is connected to the heater 4 and the gas extractor 7 with the capillary membrane 5 and the gas inlets 6a, 6b. In order to send the insulating oil collected to the extractor 7 back to the transformer, the pipe 8a of the oil outlet 8 having the solenoid valve 1b is connected.

한편, 상기 가스추출기(7)의 모세관 멤브레인(5)에 의해 구획된 가스저장부(9)에는 가스측정부(10)로 채취된 가스를 보내는 가스출구(6a)와 이 가스측정부(10)에서 측정된 가스를 다시 받아들이는 가스입구(6b)를 갖추면서 공지와 같이 루프호스(11)들을 매개로 가스측정부(10)에 연결되어 있으며, 채취된 가스는 순환펌프(12)에 의해 공급 및 회수된다.On the other hand, in the gas storage section 9 partitioned by the capillary membrane 5 of the gas extractor 7, a gas outlet 6a for sending the gas collected by the gas measuring unit 10 and the gas measuring unit 10. The gas inlet (6b) for receiving the gas measured in the again is connected to the gas measuring unit 10 through the loop hose 11 as known, the collected gas is supplied by the circulation pump 12 And recovered.

그리고 변압기 절연유로부터 가스추출이 완료되면, 가스추출기(7) 내에 있는 절연유는 오일출구(8)를 통해 변압기로 되돌아 간다.When gas extraction from the transformer insulating oil is completed, the insulating oil in the gas extractor 7 returns to the transformer through the oil outlet 8.

또한, 변압기 이상시 발생되는 가스농도를 실시간으로 측정하기 위해서는 우 선 절연물이 열분해되어 절연유 중에 용해되어 있는 가스를 별도로 분리하는 가스추출을 하게 되는데, 이러한 가스추출은 가스추출기(7) 내에 설치된 멤브레인이라고 하는 분리막의 일종인 PTFE(Poly Tetra Fluoro Ethylene)막에 의해 기체-액체 분리가 이루어진다. 본 발명에서는 비교적 균일한 크기(0.1 ~ 20㎛)의 둥근 원통형의 미세 공막을 규칙적으로 갖는 모세관 멤브레인(5)을 이용한다.In addition, in order to measure the gas concentration generated in the event of a transformer failure in real time, the insulation is first pyrolyzed to separate the gas which is dissolved in the insulating oil, and this gas extraction is called a membrane installed in the gas extractor 7. Gas-liquid separation is performed by PTFE (Poly Tetra Fluoro Ethylene) membrane. In the present invention, a capillary membrane 5 having a round cylindrical fine sclera having a relatively uniform size (0.1 to 20 µm) is used.

한편, 변압기 내부에 이상이 발생되어 절연유 또는 고체 절연물이 아크, 부분방전 등에 의해 열분해 되어 가스가 발생하는 경우, 그 가스는 대부분 확산(Diffusion)에 의해 절연유 중에 용해된다. 이 절연유에 용존하는 가스 혼합물이 분리막 표면에 접촉하였을때 가스성분은 막속으로 용해, 확산하게 되며, 이때 각각의 가스성분의 용해도와 투과도는 분리막에 대하여 서로 다르게 나타난다.On the other hand, when an abnormality occurs in the transformer and the insulating oil or the solid insulating material is thermally decomposed by an arc, partial discharge, or the like to generate gas, the gas is mostly dissolved in the insulating oil by diffusion. When the gas mixture dissolved in the insulating oil comes into contact with the surface of the membrane, the gas component dissolves and diffuses into the membrane, and the solubility and permeability of each gas component are different for the membrane.

이러한 가스들의 투과되는 성질을 막 내부로 이동하는 속도차에 의해 서로 다르게 나타내며, 막 양단의 기체분압 차에 의해 가스들이 분리되어 투과된다.The permeation properties of these gases are different from each other by the speed difference moving inside the membrane, and the gases are separated and permeated by the gas partial pressure difference across the membrane.

따라서, 절연유 중에 존재하는 가스의 농도가 높을수록 즉, 가스 분압이 높을수록 가스저장부(9)에 걸려있는 대기압과의 차이가 커지므로 분리막을 투과한 가스의 농도는 높아지며 분압도 높아진다.Therefore, the higher the concentration of the gas present in the insulating oil, that is, the higher the partial pressure of gas, the greater the difference from the atmospheric pressure applied to the gas storage unit 9, so that the concentration of the gas that has passed through the separator increases and the partial pressure also increases.

절연유로부터 분리막을 통과하여 가스저장부(9)에 포집되는 가스들을 용해도가 작을수록 가스추출율이 커지며, 절연유 중에 존재하는 가스농도가 높을수록 평형압력은 높아진다. 이들 용존가스들은 격막 양단의 농도차에 의해 용존가스가 추출되어 가스추출기(7) 상부의 저장부에 모이게 되고 양단의 농도가 평행에 도달될 때 까지 추출은 계속된다.The smaller the solubility of the gases collected through the separator from the insulating oil and collected in the gas storage unit 9, the higher the gas extraction rate, and the higher the concentration of gas present in the insulating oil, the higher the equilibrium pressure. These dissolved gases are extracted by the concentration difference between the two ends of the diaphragm and are collected in the storage unit above the gas extractor 7, and the extraction is continued until the concentrations of both ends reach parallel.

따라서 추출장치 설계시 상기와 같은 특성들이 충분히 검토되고 고려되지 않으면 높은 추출율과 안정된 출력값을 얻을 수 없게 된다.Therefore, if the above characteristics are not sufficiently examined and considered in the design of the extraction device, it is impossible to obtain a high extraction rate and a stable output value.

또한, 상기 가스추출기(7)에 의해 추출된 가스는 가스측정부(10)로 도입된다. 도입된 가스는 광음향 방식의 측정장치에 의해 측정되는 것이다.In addition, the gas extracted by the gas extractor 7 is introduced into the gas measuring unit 10. The gas introduced is measured by a photoacoustic measuring device.

도 1은 본 발명이 적용된 광음향 방식을 이용한 변압기 절연유의 가스추출 측정 시스템의 전체 구성도,1 is an overall configuration diagram of a gas extraction measurement system of a transformer insulating oil using the photoacoustic method to which the present invention is applied,

도 2는 본 발명에 따른 변압기 절연유의 가스추출장치 상세도,2 is a detailed view of a gas extraction device for transformer insulating oil according to the present invention;

도 3은 종래 광음향 방식을 이용한 변압기 절연유의 가스추출 측정 시스템의 전체 구성도,3 is an overall configuration diagram of a gas extraction measurement system of a transformer insulating oil using a conventional photoacoustic method,

도 4는 통상적인 광음향 방식을 이용한 가스측정의 개념도,4 is a conceptual diagram of gas measurement using a conventional photoacoustic method,

도 5는 변압기 절연유의 고장가스가 적외선 스펙트럼으로 출력된 그래프이다.5 is a graph in which the fault gas of the transformer insulating oil is output in an infrared spectrum.

- 도면의 주요부분에 대한 부호의 설명 --Explanation of symbols for the main parts of the drawings-

1a,1b : 전자밸브, 2 : 오일펌프,1a, 1b: solenoid valve, 2: oil pump,

3 : 오일입구, 3a : 배관,3: oil inlet, 3a: piping,

4 : 히터, 5 : 모세관 멤브레인,4: heater, 5: capillary membrane,

6a : 가스출구, 6b : 가스입구,6a: gas outlet, 6b: gas inlet,

7 : 가스추출기, 8 : 오일출구,7: gas extractor, 8: oil outlet,

8a : 배관, 9 : 가스저장부,8a: piping, 9: gas storage,

10 : 가스측정부, 11 : 루프호스,10: gas measuring unit, 11: loop hose,

12 : 순환펌프.12: circulation pump.

Claims (2)

변압기 내부의 절연유 시료를 채취하여 이의 용해가스를 광음향방식으로 가스를 분석하여 측정하는 가스측정부(10)로 보내는 변압기 절연유의 가스추출장치에 있어서,In the gas extraction device of the transformer insulating oil taking a sample of the insulating oil in the transformer and sending the dissolved gas to the gas measuring unit 10 for analyzing and measuring the gas by photoacoustic method, 상기 변압기에 연결되는 전자밸브(1a)와 오일펌프(2)를 갖춘 오일입구(3)의 배관(3a)은 히터(4)와 모세관 멤브레인(5) 및 가스출입구(6a,6b)를 갖춘 가스추출기(7)에 연결되고, 이 가스추출기(7)에 채취된 절연유를 다시 변압기로 보내기 위해 전자밸브(1b)를 갖춘 오일출구(8)의 배관(8a)이 연결되어 이루어진 것을 특징으로 하는 변압기 절연유의 가스추출장치.The pipe 3a of the oil inlet 3 having the solenoid valve 1a and the oil pump 2 connected to the transformer is a gas having a heater 4, a capillary membrane 5 and a gas inlet 6a, 6b. A transformer, characterized in that it is connected to the extractor 7 and the pipe 8a of the oil outlet 8 with the solenoid valve 1b is connected to send the insulating oil collected to the gas extractor 7 back to the transformer. Gas extraction device of insulating oil. 제 1항에 있어서,The method of claim 1, 상기 가스추출기(7)의 모세관 멤브레인(5)에 의해 구획된 가스저장부(9)에는 가스측정부(10)로 채취된 가스를 보내는 가스출구(6a)와 이 가스측정부(10)에서 측정된 가스를 다시 받아들이는 가스입구(6b)를 갖추어 이루어진 것을 특징으로 하는 변압기 절연유의 가스추출장치.A gas outlet 6a which sends gas collected by the gas measuring unit 10 to the gas storage unit 9 partitioned by the capillary membrane 5 of the gas extractor 7 and measured by the gas measuring unit 10. A gas extracting device for transformer insulating oil, characterized by comprising a gas inlet 6b for receiving the gas again.
KR1020080100523A 2008-10-14 2008-10-14 Gas extraction apparatus of transformer insulating oil KR101012463B1 (en)

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Cited By (4)

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CN102620954A (en) * 2012-03-31 2012-08-01 大连世有电力科技有限公司 Transformer oil gas detection device
KR20190046211A (en) 2017-10-25 2019-05-07 한국전력공사 Portable dissolved gas analysis apparatus of oil filled cable using near infrared spectroscopy
KR102106826B1 (en) * 2019-11-19 2020-05-07 한빛이디에스(주) Transformer oil gas analysis photoacoustic device
KR102404594B1 (en) * 2021-01-21 2022-06-07 한국전력공사 Diagnosis system based on decomposition gas analysis, portable gas insulation device analysis equipment for the same

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US4763514A (en) 1986-05-14 1988-08-16 Mitsubishi Denki Kabushiki Kaisha Monitoring equipment for dissolved gas in insulating oil
JPH0247531A (en) * 1988-08-10 1990-02-16 Meidensha Corp Automatic apparatus for measuring gas in oil
JP3654874B2 (en) * 2002-06-14 2005-06-02 ティーエム・ティーアンドディー株式会社 Oil dissolved gas extraction device
KR100817223B1 (en) * 2006-12-27 2008-03-27 한국전기연구원 High sensitivity on line equipment for detecting dissolved gases in oil with multilateral membrane

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Publication number Priority date Publication date Assignee Title
CN102620954A (en) * 2012-03-31 2012-08-01 大连世有电力科技有限公司 Transformer oil gas detection device
KR20190046211A (en) 2017-10-25 2019-05-07 한국전력공사 Portable dissolved gas analysis apparatus of oil filled cable using near infrared spectroscopy
KR102106826B1 (en) * 2019-11-19 2020-05-07 한빛이디에스(주) Transformer oil gas analysis photoacoustic device
KR102404594B1 (en) * 2021-01-21 2022-06-07 한국전력공사 Diagnosis system based on decomposition gas analysis, portable gas insulation device analysis equipment for the same
KR20220106081A (en) * 2021-01-21 2022-07-28 한국전력공사 Diagnosis method based on decomposition gas analysis

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