KR200321214Y1 - Earth bushing for gas insulated switchgear - Google Patents
Earth bushing for gas insulated switchgear Download PDFInfo
- Publication number
- KR200321214Y1 KR200321214Y1 KR20-2003-0012239U KR20030012239U KR200321214Y1 KR 200321214 Y1 KR200321214 Y1 KR 200321214Y1 KR 20030012239 U KR20030012239 U KR 20030012239U KR 200321214 Y1 KR200321214 Y1 KR 200321214Y1
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- South Korea
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- tank
- bushing
- ground
- gas insulated
- insulated switchgear
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/075—Earthing arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0358—Connections to in or out conductors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
본 고안 가스절연 배전반의 접지부싱 구조는 탱크(101)의 내측에 모선(102)이 설치되어 있고, 그 모선(102)의 하측에 개,폐로 및 접지의 3단계폐 기능을 가지는 접지 개폐기(106)가 설치되어 있으며, 상기 탱크(101)의 내측면에는 접지부싱(107)이 설치되어 있는 가스절연 배전반에서, 상기 탱크(101)의 내측면에 고정되는 접지부싱(107)이 절연부재(110)에 의해 탱크(101)와 전기적인 절연이되는 상태로 고정되도록 하여, 주회로의 접촉저항을 측정할 때 탱크(101)의 저항값이 측정되지 않는 상태로 접지부싱(107)을 이용한 주회로만의 접촉저항을 정확하게 측정할 수 있다.The ground bushing structure of the gas insulated switchgear of the present invention is provided with a bus bus 102 inside the tank 101 and a ground switch 106 having a three-stage closing function of opening, closing and grounding at the bottom of the bus bus 102. ) Is installed, and in the gas insulated switchgear having the ground bushing 107 installed on the inner surface of the tank 101, the ground bushing 107 fixed to the inner surface of the tank 101 is an insulating member 110. Only the main circuit using the ground bushing 107 in a state in which the resistance value of the tank 101 is not measured when the contact resistance of the main circuit is measured by being fixed in a state of being electrically insulated from the tank 101 by The contact resistance of can be measured accurately.
Description
본 고안은 가스절연 배전반의 접지부싱 구조에 관한 것으로, 특히 접지부싱이 탱크와 절연이 되는 상태에서 접지부싱을 이용한 주회로의 접촉저항을 정확하게 측정할 수 있도록 한 가스절연 배전반의 접지부싱 구조에 관한 것이다.The present invention relates to a grounding bushing structure of a gas insulated switchgear, and more particularly, to a grounding bushing structure of a gas insulated switchgear capable of accurately measuring contact resistance of a main circuit using the grounding bushing while the grounding bushing is insulated from the tank. will be.
도 1, 도 2에 도시된 바와 같이, 종래의 가스절연 배전반은 내부에 일정공간을 가지는 탱크(1)의 내부에 모선(2)이 설치되어 있는데, 그 모선(2)은 탱크(1)의 내측 상면에 고정된 애자(3)에 볼트로 고정되어 있고, 그 모선(2)의 일단부에는 다른 탱크(미도시)와 연결하기 위한 열반용 부싱(5)이 설치되어 있다.As shown in FIG. 1 and FIG. 2, in the conventional gas insulated switchgear, a busbar 2 is provided inside a tank 1 having a predetermined space therein, and the busbar 2 is formed of the tank 1. The bolt is fixed to the insulator 3 fixed to the inner upper surface, and one end of the bus bar 2 is provided with a nibble bushing 5 for connecting with another tank (not shown).
그리고, 상기 모선(2)의 하측에는 개,폐로 및 접지의 3단계폐 기능을 가지는 접지 개폐기(earthing switch)(6)가 설치되어 있고, 상기 탱크(1)의 내부 측면에는 접지 개폐기(6)의 접지가 이루어지는 접지부싱(7)이 설치되어 있다.In addition, a grounding switch 6 having a three-stage closing function of opening, closing and grounding is installed at the lower side of the bus bar 2, and a grounding switch 6 is provided at an inner side surface of the tank 1. A ground bushing 7 is provided which is grounded.
상기와 같이 구성되어 있는 종래 가스절연 배전반은 모선(2) 및 기기의 내부 점검시에는 안전을 위하여 접지 개폐기(6)를 회동시켜서 접지부싱(7)에 접지시킨 상태에서 점검을 실시한다.The conventional gas insulated switchgear configured as described above is inspected in a state in which the ground switch 6 is grounded to the ground bushing 7 by rotating the ground switch 6 for safety during the internal inspection of the bus 2 and the apparatus.
또한, 접지부싱(7)을 통전 주회로의 접촉저항을 점검하는 측정용 단자로 사용할때는 접지선을 주회로에서 분리한 상태에서 측정용 단자로 사용하게 된다.In addition, when the grounding bushing 7 is used as a measuring terminal for checking the contact resistance of the energized main circuit, the grounding bush 7 is used as a measuring terminal with the ground wire separated from the main circuit.
그러나, 상기와 같은 종래 가스절연 배전반은 접지부싱(7)의 재질이 구리(copper)이고, 탱크(1)의 재질이 스틸(steel)이어서 접지 개폐기(6)를 접지부싱(7)에 접촉시키고 접촉저항을 측정할 때 주회로만의 접촉저항을 정확하게 측정하는 측정용 단자로는 부적합한 문제점을 가지고 있었다.However, the above-described conventional gas insulated switchgear is made of copper (ground) of the bushing (7), the material of the tank (steel) (steel) to contact the ground switch (6) to the ground bushing (7) When measuring the contact resistance, there was an unsuitable problem as a measuring terminal for accurately measuring the contact resistance of only the main circuit.
상기와 같은 문제점을 감안하여 안출한 본 고안의 목적은 접지부싱이 탱크와 전기적인 절연이 되도록 하여 접지 개폐기를 접지부싱에 접촉시키고 주회로만의 접촉저항을 정확하게 측정할 수 있도록 하는데 적합한 가스절연 배전반의 접지부싱 구조를 제공함에 있다.An object of the present invention devised in view of the above problems is to provide a gas insulated switchgear suitable for making the ground bushing electrically insulated from the tank so that the ground switch is contacted with the ground bushing and the contact resistance of the main circuit can be accurately measured. It is to provide a grounding bushing structure.
도 1은 종래 가스절연 배전반의 구조를 보인 종단면도.1 is a longitudinal sectional view showing a structure of a conventional gas insulated switchgear.
도 2는 종래 접지부싱의 구조를 보인 부분 확대도.2 is a partially enlarged view showing a structure of a conventional ground bushing.
도 3은 본 고안의 접지부싱 설치구조를 가지는 가스절연 배전반의 구조를 보인 종단면도.Figure 3 is a longitudinal sectional view showing a structure of a gas insulated switchgear having a ground bushing installation structure of the present invention.
도 4는 도 3의 요부 확대도.4 is an enlarged view illustrating main parts of FIG. 3;
도 5는 본 발명에 따른 절연부재의 사시도.5 is a perspective view of an insulating member according to the present invention.
도 6은 도 5의 정면도.6 is a front view of FIG. 5;
도 7은 도 6의 A-A'를 절취단면도.Figure 7 is a cross-sectional view taken along the line AA 'of Figure 6;
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
101 : 탱크 101a : 통공101: tank 101a: through hole
102 : 모선 106 : 접지개폐기102: bus 106: grounding switch
107 : 접지부싱 110 : 절연부재107: grounding bushing 110: insulating member
112 : 탱크고정부 114 : 부싱고정부112: tank high government 114: bushing high government
상기와 같은 본 고안의 목적을 달성하기 위하여In order to achieve the object of the present invention as described above
탱크의 내측에 모선이 설치되어 있고, 그 모선의 하측에 개,폐로 및 접지의 3단계폐 기능을 가지는 접지 개폐기가 설치되어 있으며, 상기 탱크의 내측면에는 접지부싱이 설치되어 있는 가스절연 배전반에 있어서,A busbar is installed inside the tank, and a ground switch is provided at the bottom of the busbar, and has a three-stage closing function of opening, closing, and grounding, and an inner side of the tank is provided in a gas insulated switchgear having a ground bushing. In
상기 접지부싱은 탱크와의 절연이되어 주회로만의 접촉저항을 정확하게 측정할 수 있도록 절연부재에 의해 절연이 되는 상태로 고정되는 것을 특징으로 하는 가스절연 배전반의 접지부싱 구조가 제공된다.The grounding bushing is provided with a grounding bushing structure of a gas insulated switchgear, which is insulated from the tank and fixed by being insulated by an insulating member so as to accurately measure the contact resistance of the main circuit only.
이하, 상기와 같이 구성되어 있는 본 고안 가스절연 배전반의 접지부싱 구조를 첨부된 도면의 실시예를 참고하여 보다 상세히 설명하면 다음과 같다.Hereinafter, the ground bushing structure of the present invention gas insulated switchgear configured as described above will be described in more detail with reference to an embodiment of the accompanying drawings.
도 3은 본 고안의 접지부싱 설치구조를 가지는 가스절연 배전반의 구조를 보인 종단면도이고, 도 4는 도 3의 요부 확대도이며, 도 5는 본 발명에 따른 절연부재의 사시도이고, 도 6은 도 5의 정면도이고, 도 7은 도 6의 A-A'를 절취단면도이다.Figure 3 is a longitudinal sectional view showing a structure of a gas insulated switchgear having a ground bushing installation structure of the present invention, Figure 4 is an enlarged view of the main portion of Figure 3, Figure 5 is a perspective view of the insulating member according to the present invention, Figure 6 5 is a front view, and FIG. 7 is a cross-sectional view taken along line AA ′ of FIG. 6.
이에 도시된 바와 같이, 본 발명의 접지부싱 설치구조를 가지는 가스절연 배전반은 탱크(101)의 내부에 모선(102)이 설치되어 있고, 그 모선(102)은 탱크(101)의 내측 상면에 고정된 애자(103)에 볼트(104)로 고정되어 있다.As shown in the drawing, a gas insulated switchgear having a grounding bushing mounting structure of the present invention is provided with a bus bus 102 inside the tank 101, and the bus bus 102 is fixed to an inner upper surface of the tank 101. The insulator 103 is fixed to the insulator 103 with a bolt 104.
그리고, 상기 모선10(2)의 일단부에는 다른 탱크(미도시)와 연결하기 위한 열반용 부싱(105)이 설치되어 있고, 상기 모선(102)의 하측에는 개,폐로 및 접지의 3단계폐 기능을 가지는 접지 개폐기(106)가 설치되어 있다.And, one end of the bus bar 10 (2) is provided with a nibble bushing 105 for connecting with other tanks (not shown), the bottom of the bus bus 102, three stages of opening, closing and grounding A ground switch 106 having a function is provided.
또한, 상기 탱크(101)의 내부 측면에는 접지 개폐기(106)의 접지가 이루어지는 접지부싱(107)이 설치되어 있는데, 그 접지부싱(107)은 탱크(101)의 측면에 형성된 통공(101a)에 설치된 절연부재(110)에 고정되어 있어서 탱크(101)와 전기적인 절연이 이루어지도록 되어 있다.In addition, the inner side of the tank 101 is provided with a grounding bushing 107 which is grounded to the grounding switch 106, the grounding bushing 107 is formed in the through hole (101a) formed on the side of the tank 101 It is fixed to the insulating member 110 provided to be electrically insulated from the tank 101.
상기 절연부재(110)은 도 5, 도 6, 도 7에 도시된 바와 같이, 상기 탱크(101)에 형성된 통공(101a)의 외연부에 밀착되며 탱크(101)에 볼트(111)로 고정되는 원판체의 탱크고정부(112)와, 그 탱크고정부(112)에 일체로 형성되며 탱크(101)에 형성된 통공(101a)을 통하여 내측으로 돌출형성되어 접지부싱(107)이 볼트(113)로 고정되는 부싱고정부(114)로 구성되어 있다.5, 6, and 7, the insulating member 110 is in close contact with the outer edge of the through hole 101a formed in the tank 101 and fixed to the tank 101 by bolts 111. The ground bushing 107 is formed by protruding inward through the tank fixing part 112 of the disc body and the through hole 101a formed in the tank 101 and integrally formed in the tank fixing part 112. The bushing fixing part 114 is fixed to.
상기와 같이 구성된 본 고안 가스절연 배전반에서는 모선(102) 및 기기의 내부 점검시에는 안전을 위하여 접지 개폐기(106)를 회동시켜서 접지부싱(107)에 접지시킨 상태에서 점검을 실시하고, 접지부싱(107)을 통전 주회로의 접촉저항을 점검하는 측정용 단자로 사용할때는 접지선을 주회로에서 분리한 상태에서 측정용 단자로 사용하게 된다.In the gas insulated switchboard of the present invention configured as described above, when the internal inspection of the bus bus 102 and the device is performed, the ground switch 106 is rotated for safety and grounded to the ground bushing 107, and the ground bushing ( 107) is used as a measuring terminal to check the contact resistance of the energized main circuit with the ground wire separated from the main circuit.
이때, 본 발명에서는 상기와 같이 접지부싱(107)을 통전 주회로의 접촉저항을 점검하는 측정용 단자로 사용할 때 탱크(101)와 접지부싱(107)이 절연부재(110)에 의해 절연이되어 있어서, 탱크(101)의 저항값까지 측정되지 않고, 접지부싱(107)을 이용한 주회로만의 접촉저항을 정확하게 측정할 수 있기 때문에, 접지부싱(107)을 주회로의 접촉저항을 정확하게 점검하는 측정용 단자로 사용할 수 있다.In this case, in the present invention, when the ground bushing 107 is used as a measuring terminal for checking the contact resistance of the energized main circuit, the tank 101 and the ground bushing 107 are insulated by the insulating member 110. In this case, since the contact resistance of only the main circuit using the ground bushing 107 can be accurately measured without measuring the resistance value of the tank 101, the ground bushing 107 is used to accurately check the contact resistance of the main circuit. Can be used as a terminal for
이상에서 상세히 설명한 바와 같이, 본 고안 가스절연 배전반의 접지부싱 구조는 탱크의 내측면에 고정되는 접지부싱이 절연부재에 의해 탱크와 전기적인 절연이되는 상태로 고정되도록 하여, 주회로의 접촉저항을 측정할 때 탱크의 저항값이 측정되지 않는 상태로 접지부싱을 이용한 주회로만의 접촉저항을 정확하게 측정할 수 있는 효과가 있다.As described in detail above, the ground bushing structure of the gas insulated switchgear of the present invention allows the ground bushing fixed to the inner surface of the tank to be fixed in an insulated state from the tank by the insulating member, thereby reducing the contact resistance of the main circuit. When measuring, the resistance of the tank is not measured, and the contact resistance of the main circuit using the ground bushing can be accurately measured.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2003-0012239U KR200321214Y1 (en) | 2003-04-21 | 2003-04-21 | Earth bushing for gas insulated switchgear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2003-0012239U KR200321214Y1 (en) | 2003-04-21 | 2003-04-21 | Earth bushing for gas insulated switchgear |
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| KR200321214Y1 true KR200321214Y1 (en) | 2003-07-23 |
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| KR20-2003-0012239U KR200321214Y1 (en) | 2003-04-21 | 2003-04-21 | Earth bushing for gas insulated switchgear |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180000322U (en) * | 2016-07-22 | 2018-01-31 | 엘에스산전 주식회사 | Termination isolator for ring main unit |
| KR20180040422A (en) * | 2016-10-12 | 2018-04-20 | 엘에스산전 주식회사 | Interlock aparatus of ring main unit) |
-
2003
- 2003-04-21 KR KR20-2003-0012239U patent/KR200321214Y1/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180000322U (en) * | 2016-07-22 | 2018-01-31 | 엘에스산전 주식회사 | Termination isolator for ring main unit |
| KR200486492Y1 (en) * | 2016-07-22 | 2018-05-25 | 엘에스산전 주식회사 | Termination isolator for ring main unit |
| KR20180040422A (en) * | 2016-10-12 | 2018-04-20 | 엘에스산전 주식회사 | Interlock aparatus of ring main unit) |
| KR101865474B1 (en) * | 2016-10-12 | 2018-06-07 | 엘에스산전 주식회사 | Interlock aparatus of ring main unit) |
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