KR100787472B1 - Pad mounted transformer - Google Patents

Pad mounted transformer Download PDF

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KR100787472B1
KR100787472B1 KR1020070069504A KR20070069504A KR100787472B1 KR 100787472 B1 KR100787472 B1 KR 100787472B1 KR 1020070069504 A KR1020070069504 A KR 1020070069504A KR 20070069504 A KR20070069504 A KR 20070069504A KR 100787472 B1 KR100787472 B1 KR 100787472B1
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South Korea
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ground transformer
pressure reducing
reducing device
upper cover
instantaneous pressure
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KR1020070069504A
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Korean (ko)
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최춘식
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대보전력기술 주식회사
주식회사 호림
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    • 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
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • 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
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • 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
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F2027/404—Protective devices specially adapted for fluid filled transformers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

A method for installing an instantaneous pressure reducing apparatus of a ground transformer is provided to facilitate an installation process by not moving the ground transformer to a separate work space. A method for installing an instantaneous pressure reducing apparatus of a ground transformer includes the steps of: separating an external box from the outer peripheral surface of the ground transformer in a live line state; separating an upper cover(110) from the ground transformer by releasing a bolt; forming an installing hole(300) and coupling members(310) around the installing hole in the upper cover; coupling an instantaneous pressure reducing apparatus with the upper cover through the coupling members; installing an insulation oil scattering cover for preventing the scattering of the insulation oil; and coupling the upper cover with the upper end of the ground transformer and assembling the external box.

Description

지상변압기에서의 순간압력저감장치 설치방법{Pad mounted transformer}Installation method of instantaneous pressure reducing device in ground transformer {Pad mounted transformer}

본 발명은 지상변압기에서의 순간압력저감장치 설치방법에 관한 것으로, 더욱 상세하게는 지상변압기가 활선 상태에서 상부커버를 분리하고, 분리된 상부커버에는 현장에서 직접 순간압력저감장치를 설치할 수 있도록 한 지상변압기에서의 순간압력저감장치 설치방법에 관한 것이다.The present invention relates to a method for installing an instantaneous pressure reducing device in a ground transformer. More specifically, the grounding transformer separates an upper cover in a live state, and allows the instantaneous pressure reducing device to be installed directly on the site. A method for installing an instantaneous pressure reducing device in a ground transformer.

최근 냉방부하 및 컴퓨터 등 전기이용 정보처리시설과 편의시설 증가로 전기 사용량이 급격히 증가하고 있으며, 이러한 현상은 과부하상태 지역 및 부하편중현상 심화지역의 확대로 나타나고 있다. 이로 인하여, 계통말단에 위치한 주상 및 지상변압기가 담당하는 부하량은 불규칙하게 증대되고, 지상변압기에는 과부하현상에 의한 열화와 외부환경에 의한 열화등에 의하여 잦은 절연 파괴가 발생한다.Recently, the consumption of electricity is increasing rapidly due to the increase of cooling loads and electric information processing facilities and convenience facilities such as computers, and this phenomenon is indicated by the expansion of the overload area and the increased load bias area. As a result, the load on the columnar and ground transformers located at the system end is increased irregularly, and the ground transformer frequently causes breakdown due to deterioration due to overload and deterioration due to external environment.

상기와 같이 지상변압기의 충전부를 냉각하는 절연유의 절연 파괴는 지상변압기 내부에 급격한 압력상승을 가져오게 되고 이를 견디지 못하면 지상변압기는 폭발하게 되며, 그 결과 화재 및 고온의 절연유가 외부로 분출되어 인명과 재산상의 피해를 주는 단점이 있었다.Insulation breakdown of the insulating oil cooling the charging part of the ground transformer as described above will result in a rapid pressure rise inside the ground transformer and if it does not withstand it, the ground transformer will explode. There was a disadvantage of damaging property.

상기와 같은 단점을 감안하여 근래에는 지상변압기에 유기적으로 설치되어 지상변압기 내부에서 이상압력이 발생하면 이를 외부로 방출시키는 여러가지의 순간압력저감장치가 설치 사용되고 있다. In view of the above drawbacks, in recent years, a variety of instantaneous pressure reducing devices are installed and used to organically install the ground transformer and to release it to the outside when an abnormal pressure occurs inside the ground transformer.

상기와 같은 순간압력저감장치를 이용하여 지상변압기가 폭발되는 것을 방지할 수 있다는 이점은 있으나, 종래에는 지상변압기에 순간압력저감장치를 설치하기 위해서는 먼저 지상변압기의 외주면에 형성된 외함을 분리한 후, 순간압력저감장치를 설치하기 위한 지상변압기를 현장에서 분리하고, 순간압력저감장치가 설치된 새로운 지상변압기를 설치한다.Although there is an advantage that the ground transformer can be prevented from being exploded by using the instantaneous pressure reducing device as described above, in order to install the instantaneous pressure reducing device in the ground transformer, first, after separating the enclosure formed on the outer circumferential surface of the ground transformer, Separate the ground transformer on site to install the momentary pressure reducing device, and install the new ground transformer with the momentary pressure reducing device installed.

이후 분리된 지상변압기는 별도의 작업장소(공장)로 이동시킨 다음 순간압력저감장치를 설치하고, 순간압력저감장치가 필요한 다른 지상변압기와 교체하는 방법을 통하여 실시하고 있다.After that, the separated ground transformer is moved to a separate work place (factory), and then the instantaneous pressure reducing device is installed and replaced by another ground transformer requiring the instantaneous pressure reducing device.

따라서, 순간압력저감장치를 설치하기 위해서는 지상변압기를 분리한 후, 이를 작업장소로 이동시킨 다음 순간압력저감장치를 설치해야 하기 때문에 이동에 따른 불편함이 수반될 뿐 아니라 그만큼 작업시간이 많이 소요되며 교체 및 설치비용이 상승되는 제반 문제점이 발생되었다.Therefore, in order to install the instantaneous pressure reducing device, it is necessary to remove the ground transformer, move it to the work place, and then install the instantaneous pressure reducing device. Problems arise that the replacement and installation costs are increased.

본 발명은 상기와 같은 문제점을 감안하여 안출한 것으로, 지상변압기가 활선 상태에서 상부커버를 분리하고, 분리된 상부커버에는 현장에서 직접 순간압력저감장치를 설치 조립하므로서, 간편하고 신속하게 순간압력저감장치의 설치작업이 이루어지게 함은 물론 설치에 따른 제반 소요비용을 대폭 절감할 수 있도록 한 지 상변압기에서의 순간압력저감장치 설치방법을 제공하는데 있다.The present invention has been made in view of the above problems, the ground transformer separates the upper cover in the live state, the separated upper cover by installing and assembling the instantaneous pressure reduction device directly in the field, the instantaneous pressure reduction The present invention provides a method of installing an instantaneous pressure reducing device in a ground transformer, which enables the installation work of the device and can greatly reduce the overall cost of installation.

본 발명은 활선 상태에서 지상변압기 외주면에 형성된 외함을 분리하는 외함 분리단계;The present invention includes an enclosure separating step of separating the enclosure formed on the outer circumferential surface of the ground transformer in a live state;

외함이 분리되면 지상변압기 상단에 형성된 상부커버를 선택하고, 선택된 상부커버는 볼트를 풀어 지상변압기로 부터 분리하는 상부커버 분리단계;When the enclosure is separated, select the upper cover formed on the top of the ground transformer, the selected upper cover is the upper cover separating step of releasing the bolt from the ground transformer;

분리된 상부커버측에 현장에서 직접 설치구멍을 형성하고 이 설치구멍 주변에는 체결부재를 일정한 간격을 두고 다수 형성하는 설치구멍 및 체결부재 형성단계;An installation hole and a fastening member forming step of forming a mounting hole directly in the field on the separated upper cover side and forming a plurality of fastening members at regular intervals around the installation hole;

상부커버에 설치구멍과 체결부재가 일체로 형성되면 상기한 설치구멍측에 순간압력저감장치 하단을 위치시킨 후 체결부재로 상부커버에 체결 고정시키는 순간압력저감장치 설치단계;If the mounting hole and the fastening member is integrally formed in the upper cover, the momentary pressure reducing device installation step of positioning the bottom of the instantaneous pressure reducing device on the side of the installation hole and fastening and fastening to the upper cover with the fastening member;

순간압력저감장치가 설치되면 상기한 순간압력저감장치를 통해 외부로 분출되는 절연유가 외부로 비산되는 것을 방지하는 절연유 비산커버를 설치하는 절연유 비산커버 설치단계;An insulating oil scattering cover installation step of installing an insulating oil splashing cover to prevent the insulating oil sprayed to the outside through the instantaneous pressure reducing device from being scattered to the outside when the instantaneous pressure reducing device is installed;

순간압력저감장치와 절연유 비산커버가 상부커버에 설치 완료되면 상부커버를 지상변압기 상단에 결합하고 외함을 조립하는 조립단계를 포함하는 것을 그 기술적 구성상의 기본 특징으로 한다.When the instantaneous pressure reducing device and the insulating oil scattering cover is installed on the upper cover, the technical features include an assembling step of coupling the upper cover to the top of the ground transformer and assembling the enclosure.

본 발명에 의하면 지상변압기에서의 순간압력저감장치 설치방법을 통하여 지 상변압기가 활선 상태에서 상부커버가 분리되고, 분리된 상부커버에는 현장에서 직접 순간압력저감장치의 설치 조립이 가능하다.According to the present invention, through the method of installing the instantaneous pressure reducing device in the ground transformer, the upper cover is separated from the ground transformer in the live state, and the separated upper cover can be installed and assembled directly in the field.

따라서 종래와 같이 순간압력저감장치를 설치하기 위하여 지상변압기를 별도의 작업장소로 이동시키지 않아도 되기 때문에 현장에서 간편하고 신속하게 순간압력저감장치의 설치작업이 이루어지질 뿐 아니라, 이에 따라 설치에 따른 제반 소요비용을 대폭 절감할 수 있는 것이다.Therefore, in order to install the instantaneous pressure reducing device as in the prior art, since the ground transformer does not have to be moved to a separate work place, the installation work of the instantaneous pressure reducing device is easily and quickly performed on the site, and accordingly, The cost can be greatly reduced.

이하 본 발명의 바람직한 실시예를 첨부도면을 참조하여 보다 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명에 따른 지상변압기에서 외함과 상부커버가 분리되는 상태를 나타낸 정면도 이고, 도2는 본 발명에 따른 상부커버에 설치공간과 체결부재가 형성된 상태를 나타낸 사시도 이며, 도3은 본 발명에 따른 상부커버에 순간압력저감장치가 장치된 상태를 나타낸 단면도이다.1 is a front view showing a state in which the enclosure and the upper cover is separated in the ground transformer according to the present invention, Figure 2 is a perspective view showing a state in which the installation space and the fastening member is formed in the upper cover according to the present invention, Figure 3 A cross-sectional view showing a state in which an instantaneous pressure reducing device is installed in the upper cover according to the present invention.

본 발명의 지상변압기에서의 순간압력저감장치 설치방법에 동원되는 지상변압기(100), 상부커버(110), 외함(200), 순간압력저감장치(400) 및 비산커버(410)는 통상 사용되는 기술 내용이므로 그에 대한 구체적인 작용 및 설명은 생략하기로 한다.The ground transformer 100, the upper cover 110, the enclosure 200, the instantaneous pressure reducing device 400 and the scattering cover 410 mobilized in the method for installing the instantaneous pressure reducing device in the ground transformer of the present invention are commonly used. Since it is a technical content, detailed operation and description thereof will be omitted.

상기 상부커버(110)에는 설치구멍 (300)및 체결부재(310)가 형성되고, 이 설치구멍(300) 및 체결부재(310)를 통하여 순간압력저감장치(400)가 현장에서 설치된다.The upper cover 110 is provided with an installation hole 300 and the fastening member 310, the instantaneous pressure reducing device 400 is installed in the field through the installation hole 300 and the fastening member 310.

외함 분리단계,Enclosure separation step,

사용하고 있는 지상변압기(100)에 순간압력저감장치(400)를 설치하기 위해서는 먼저 활선 상태에서 지상변압기(100) 외주면에 형성된 외함(200)을 분리한다.In order to install the instantaneous pressure reduction device 400 in the ground transformer 100 being used, first, the enclosure 200 formed on the outer circumferential surface of the ground transformer 100 is separated in a live state.

상부커버 분리단계,Upper cover removing step,

외함(200)이 분리되면 지상변압기(100) 상단에 형성된 상부커버(110)를 선택하고, 선택된 상부커버(110)는 볼트(120)를 풀어 지상변압기로 부터 분리한다. 이때 지상변압기(100) 내부로 이물질이 유입되는 것을 방지하기 위해 미리 제작된 가 상부커버를 임시로 조립한다.When the enclosure 200 is separated, the upper cover 110 formed on the ground transformer 100 is selected, and the selected upper cover 110 is separated from the ground transformer by loosening the bolt 120. At this time, the temporary transformer is temporarily assembled in order to prevent foreign matter from flowing into the ground transformer (100).

설치구멍 및 체결부재 형성단계,Installation hole and fastening member forming step,

현장에서 분리된 상부커버(110)는 깨끗이 청소한 후, 순간압력저감장치(400)가 설치될 위치에 설치구멍(300)을 형성하고 이 설치구멍(300) 주변에는 상기한 순간압력저감장치(400)를 상부커버(110)에 체결 고정시키기 위한 체결부재(310)를 일정한 간격을 두고 다수 형성한다.After the upper cover 110 is cleaned at the site, the installation hole 300 is formed at the position where the instantaneous pressure reduction device 400 is to be installed, and the above-mentioned instantaneous pressure reduction device ( A plurality of fastening members 310 for fastening and fixing the 400 to the upper cover 110 are formed at regular intervals.

순간압력저감장치 설치단계,Installation of momentary pressure reducing device,

상부커버(110)에 설치구멍(300)과 체결부재(310)가 일체로 형성되면 상기한 설치구멍(300)측에 순간압력저감장치(400) 하단을 위치시킨 후 체결부재(310)로 상부커버에 체결 고정시킨다.When the installation hole 300 and the fastening member 310 are integrally formed in the upper cover 110, the lower end of the instantaneous pressure reducing device 400 is positioned on the side of the installation hole 300, and then the upper part is fastened by the fastening member 310. Fasten to the cover.

절연유 비산커버 설치단계,Insulating oil splash cover installation step,

순간압력저감장치(400)가 설치되면 상기한 순간압력저감장치를 통해 외부로 분출되는 절연유가 외부로 비산되는 것을 방지하기 위해 순간압력저감장치(400) 외 주면에 절연유 비산커버(410)를 설치한다.When the instantaneous pressure reducing device 400 is installed, the insulating oil scattering cover 410 is installed on the outer circumferential surface of the instantaneous pressure reducing device 400 to prevent the insulating oil ejected to the outside through the instantaneous pressure reducing device from scattering to the outside. do.

조립단계,Assembly stage,

순간압력저감장치(400)와 절연유 비산커버(410)가 상부커버(110)에 설치 완료되면 지상변압기(100) 상단에 임시로 가 조립된 상부커버를 분리하고, 순간압력저감장치(400)와 절연유 비산커버(410)가 설치된 상부커버(110)를 지상변압기(100) 상단에 결합한 후 외함(200)을 조립 완료하면 되는 것이다.When the instantaneous pressure reducing device 400 and the insulating oil scattering cover 410 is installed in the upper cover 110, the upper cover temporarily assembled on the ground transformer 100 is separated, and the instantaneous pressure reducing device 400 is removed. After coupling the upper cover 110, the insulating oil scattering cover 410 is installed on the top of the ground transformer 100 is to complete the assembly of the enclosure 200.

상기와 같이 조립 완료된 지상변압기(100)를 사용하다가 지상변압기에서 이상압력이 발생하면 이상압력은 순간압력저감장치(400)를 통하여 외부로 방출되어 지상변압기가 폭발되는 것을 방지하고, 이상압력과 동시에 분출되는 고온의 절연유는 절연유 비산커버(410)를 통하여 주변 환경이 오염되는 것과 주변 사람들이 화상을 입는 것을 방지하는 것이다.When the above-described ground transformer 100 is used while abnormal pressure is generated in the ground transformer, the abnormal pressure is released to the outside through the instantaneous pressure reducing device 400 to prevent the ground transformer from being exploded and at the same time as the abnormal pressure. The high temperature insulating oil that is ejected is to prevent the surrounding environment from being contaminated through the insulating oil splash cover 410 and to prevent burns of surrounding people.

도1은 본 발명에 따른 지상변압기에서 외함과 상부커버가 분리되는 상태를 나타낸 정면도.1 is a front view showing a state in which the outer cover and the upper cover separated in the ground transformer according to the present invention.

도2는 본 발명에 따른 상부커버에 설치공간과 체결부재가 형성된 상태를 나타낸 사시도.Figure 2 is a perspective view showing a state in which the installation space and the fastening member is formed on the upper cover according to the present invention.

도3은 본 발명에 따른 상부커버에 순간압력저감장치가 장치된 상태를 나타낸 단면도.Figure 3 is a cross-sectional view showing a state in which the instantaneous pressure reducing device is installed on the upper cover according to the present invention.

(도면중 주요 부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)

100 ; 지상변압기 110 ; 상부커버100; Ground transformer 110; Top cover

120 ; 볼트 200 ; 외함120; Bolt 200; Enclosure

300 ; 설치구멍 310 ; 체결부재300; Mounting hole 310; Fastening member

400 ; 순간압력저감장치 410 ; 절연유 비산커버400; Instantaneous pressure reducing device 410; Insulating oil splash cover

Claims (1)

활선 상태에서 지상변압기(100) 외주면에 형성된 외함(200)을 분리하는 외함 분리단계;An enclosure separating step of separating the enclosure 200 formed on the outer circumferential surface of the ground transformer 100 in an active state; 외함(200)이 분리되면 지상변압기(100) 상단에 형성된 상부커버(110)를 선택하고, 선택된 상부커버(110)는 볼트(120)를 풀어 지상변압기(100)로 부터 분리하는 상부커버 분리단계;When the enclosure 200 is separated, the top cover 110 formed on the ground transformer 100 is selected, and the selected top cover 110 is separated from the ground transformer 100 by releasing the bolt 120 from the ground transformer 100. ; 분리된 상부커버(110)측에 현장에서 직접 설치구멍(300)을 형성하고 이 설치구멍(300) 주변에는 체결부재(310)를 일정한 간격을 두고 다수 형성하는 설치구멍 및 체결부재 형성단계;An installation hole and a fastening member forming step of forming an installation hole 300 directly at the site of the separated upper cover 110 and forming a plurality of fastening members 310 at regular intervals around the installation hole 300; 상부커버(110)에 설치구멍(300)과 체결부재(310)가 일체로 형성되면 상기한 설치구멍(300)측에 순간압력저감장치(400) 하단을 위치시킨 후 체결부재(310)로 상부커버(110)에 체결 고정시키는 순간압력저감장치 설치단계;When the installation hole 300 and the fastening member 310 are integrally formed in the upper cover 110, the lower end of the instantaneous pressure reducing device 400 is positioned on the side of the installation hole 300, and then the upper part is fastened by the fastening member 310. Installing a momentary pressure reducing device for fastening to the cover 110; 순간압력저감장치(400)가 설치되면 상기한 순간압력저감장치를 통해 외부로 분출되는 절연유가 외부로 비산되는 것을 방지하는 절연유 비산커버(410)를 설치하는 절연유 비산커버 설치단계;When the instantaneous pressure reducing device 400 is installed, the insulating oil splash cover installation step of installing an insulating oil splashing cover 410 to prevent the insulating oil sprayed to the outside through the instantaneous pressure reducing device to be scattered to the outside; 순간압력저감장치(400)와 절연유 비산커버(410)가 상부커버(110)에 설치 완료되면 상부커버(100)를 지상변압기(100) 상단에 결합하고 외함(200)을 조립하는 조립단계를 포함하는 것을 특징으로 하는 지상변압기에서의 순간압력저감장치 설치방법.When the instantaneous pressure reducing device 400 and the insulating oil scattering cover 410 is installed in the upper cover 110, the upper cover 100 is coupled to the ground transformer 100, and an assembly step of assembling the enclosure 200. Method of installing a momentary pressure reducing device in a ground transformer, characterized in that.
KR1020070069504A 2007-07-11 2007-07-11 Pad mounted transformer KR100787472B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100887719B1 (en) * 2008-06-10 2009-03-24 대영종합산기(주) Upper cover having reinforcement cover for rupture disk of transformer and replacement method thereof
KR100898736B1 (en) 2007-08-29 2009-05-25 대흥전력기술 주식회사 The method of on line Relief of device on the transformer for building
KR100899417B1 (en) 2008-07-04 2009-06-01 대영종합산기(주) Rupture disk for the pole transformer and install method thereof
KR101047172B1 (en) 2009-01-15 2011-07-07 (주)엔티전기 Explosion-proof device for insulating oil tank of transformer
KR101894534B1 (en) 2018-06-04 2018-09-04 제룡전기 주식회사 Bolting method for aluminum alloy transformer enclosures

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000004827U (en) * 1998-08-17 2000-03-15 양우현 Instantaneous pressure reducing device for ground transformer
KR200280159Y1 (en) 2002-03-15 2002-07-02 동방전기공업(주) A apparatus for falling the instant pressure of a transformer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000004827U (en) * 1998-08-17 2000-03-15 양우현 Instantaneous pressure reducing device for ground transformer
KR200280159Y1 (en) 2002-03-15 2002-07-02 동방전기공업(주) A apparatus for falling the instant pressure of a transformer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100898736B1 (en) 2007-08-29 2009-05-25 대흥전력기술 주식회사 The method of on line Relief of device on the transformer for building
KR100887719B1 (en) * 2008-06-10 2009-03-24 대영종합산기(주) Upper cover having reinforcement cover for rupture disk of transformer and replacement method thereof
KR100899417B1 (en) 2008-07-04 2009-06-01 대영종합산기(주) Rupture disk for the pole transformer and install method thereof
KR101047172B1 (en) 2009-01-15 2011-07-07 (주)엔티전기 Explosion-proof device for insulating oil tank of transformer
KR101894534B1 (en) 2018-06-04 2018-09-04 제룡전기 주식회사 Bolting method for aluminum alloy transformer enclosures

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