KR20230089857A - Elbow connector for ground switching device and connecting method - Google Patents

Elbow connector for ground switching device and connecting method Download PDF

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KR20230089857A
KR20230089857A KR1020210178583A KR20210178583A KR20230089857A KR 20230089857 A KR20230089857 A KR 20230089857A KR 1020210178583 A KR1020210178583 A KR 1020210178583A KR 20210178583 A KR20210178583 A KR 20210178583A KR 20230089857 A KR20230089857 A KR 20230089857A
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connection
connection terminal
cable
bushing
coupled
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KR1020210178583A
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Korean (ko)
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KR102621388B1 (en
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정걸
김영찬
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한국전력공사
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/54—Intermediate parts, e.g. adapters, splitters or elbows
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions

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Abstract

The present invention relates to an elbow connector for a ground switch and, more specifically, to an elbow connector for a ground switching device, which comprises: a cable insertion part into which an end of a power cable is vertically inserted upwards; a hollow insulating housing, which includes a bushing insertion part into which a switch bushing is inserted horizontally in the horizontal direction and a connection part which is formed inside and at which a cable insertion part and a bushing insertion part intersect each other; and a connection terminal which is coupled to a cable adapter mounted at an end of a power cable and is connected to a connection bar coupled to the switch bushing at the connection part formed inside the insulating housing. The connection terminal includes: a body part, the lower portion of which is coupled to the cable adapter; and a head part which is formed integrally on an upper portion of the body part, includes a connection hole through which the connection bar passes, and has a width greater than the width of the body part. Therefore, the elbow connector for a ground switch can prevent device discharge due to non-connection of the connection terminal and prevent accidents of workers.

Description

지상개폐기용 엘보접속재 및 접속방법{ELBOW CONNECTOR FOR GROUND SWITCHING DEVICE AND CONNECTING METHOD}Elbow connector and connection method for ground switch {ELBOW CONNECTOR FOR GROUND SWITCHING DEVICE AND CONNECTING METHOD}

본 발명은 지상개폐기용 엘보접속재 및 접속방법에 관한 것으로, 보다 상세하게는, 지상개폐기의 전력케이블 접속시 접속단자의 이탈을 방지할 수 있는 지상개폐기용 엘보접속재 및 접속방법에 관한 것이다.The present invention relates to an elbow connector and a connection method for a ground switch, and more particularly, to an elbow connector and a connection method for a ground switch that can prevent separation of a connection terminal when connecting a power cable of a ground switch.

일반적으로 엘보접속재는 지중선 배전선로에서 지상 설치형 개폐기 및 변압기 등의 특고압 기기와 전력케이블을 연결하는데 있어 착탈을 용이하게 하는 매개수단으로 사용되는 것으로 그 용도에 관해서는 잘 알려져 있고, 종래에도 다양한 기술로 개시되고 있다.In general, elbow connectors are used as an intermediary means for easy attachment and detachment in connecting power cables and extra-high voltage devices such as ground-mounted switchgear and transformers in underground distribution lines. It is well known for its use, and various technologies have been is being initiated.

엘보접속재는 개폐기 부싱에 결합된 수평방향의 접속봉에 전력케이블 어댑터에 장착된 수직방향의 접속단자를 절연하우징 내부에서 접속단자에 형성된 접속홀에 접속봉이 관통되게 함으로써 개폐기와 전력케이블을 연결한다.The elbow connection material connects the switch and the power cable by allowing the vertical connection terminal mounted on the power cable adapter to the horizontal connection rod coupled to the switch bushing to pass through the connection hole formed in the connection terminal inside the insulating housing.

종래의 접속봉과 접속단자 간의 접속방법으로는 절연하우징 내부에 위치한 접속단자가 절연하우징에서 아래로 빠지는 것을 방지하기 위해 작업자가 전력케이블을 잡고 들어올려야만 했다.In the conventional connection method between the connection rod and the connection terminal, a worker had to hold and lift the power cable to prevent the connection terminal located inside the insulation housing from falling down from the insulation housing.

즉, 작업자가 절연하우징만 잡고 들어올릴 경우, 절연하우징 내부에서 고정되어 있지 않은 접속단자가 절연하우징에서 이탈되기 때문에 접속봉에 접속단자를 제대로 접속시킬 수 없는 문제가 있었다.That is, when a worker holds and lifts only the insulating housing, there is a problem in that the connecting terminal cannot be properly connected to the connecting rod because the connecting terminal that is not fixed inside the insulating housing is separated from the insulating housing.

본 발명의 배경기술은 대한민국 등록특허공보 제10-1066526호(2011년 09월 21일 공고, 발명의 명칭: 비대칭구조된 개폐기용 접속재의 절연캡)에 개시되어 있다.The background art of the present invention is disclosed in Korean Patent Registration No. 10-1066526 (published on September 21, 2011, title of the invention: Insulation cap of connection material for asymmetrically structured switchgear).

본 발명의 일 실시예는 지상개폐기의 전력케이블 접속시 전력케이블에 결합된 접속단자의 이탈을 방지할 수 있는 지상개폐기용 엘보접속재 및 접속방법을 제공하는 것이다.One embodiment of the present invention is to provide an elbow connector and a connection method for a ground switch that can prevent separation of a connection terminal coupled to a power cable when connecting a power cable of the ground switch.

상기 과제를 달성하기 위해 안출된 본 발명은, 지상개폐기용 엘보접속재로서, 전력케이블의 단부가 수직으로 상향 삽입되는 케이블 삽입부와, 개폐기 부싱이 측방향에서 수평으로 삽입되는 부싱 삽입부가 일체로 형성되고, 상기 케이블 삽입부와 상기 부싱 삽입부가 교차하는 접속부가 내부에 형성된 중공의 절연하우징 및 상기 전력케이블의 단부에 장착된 케이블 어댑터에 결합되고, 상기 절연하우징 내부에 형성된 상기 접속부에서 상기 개폐기 부싱에 결합된 접속봉에 접속되는 접속단자를 포함하며, 상기 접속단자는 상기 케이블 어댑터에 하부가 결합되는 몸체부와, 상기 몸체부의 상부에 일체로 형성되고 상기 접속봉이 관통되는 접속홀이 형성되고 상기 몸체부의 너비 보다 더 큰 너비를 갖는 헤드부를 포함하는 것을 특징으로 한다.The present invention, devised to achieve the above object, is an elbow connector for a ground switch, wherein a cable insertion portion into which an end of a power cable is vertically inserted upward and a bushing insertion portion into which a switch bushing is inserted horizontally from a lateral direction are integrally formed. The connection part where the cable insertion part and the bushing insertion part intersect is coupled to a hollow insulation housing formed therein and a cable adapter mounted at an end of the power cable, and from the connection part formed inside the insulation housing to the switchgear bushing. It includes a connection terminal connected to the coupled connection rod, wherein the connection terminal is formed integrally with a body portion coupled to the lower portion of the cable adapter and an upper portion of the body portion, and a connection hole through which the connection rod passes is formed, and the body portion is formed integrally with the connection terminal. It is characterized in that it includes a head portion having a larger width than the width of the portion.

상기 접속부는 상기 접속단자의 헤드부가 통과하는 개방홀과, 상기 개방홀의 양측에 형성되어 상기 헤드부가 안착되는 걸림턱을 포함하는 것을 특징으로 한다.The connection part may include an open hole through which the head of the connection terminal passes, and locking protrusions formed on both sides of the open hole to seat the head.

상기 접속단자는 상기 몸체부와 상기 헤드부 사이에 형성되어 상기 접속단자의 외측방향으로 돌출된 걸림날개를 포함하는 것을 특징으로 한다.The connection terminal is characterized in that it includes a locking wing formed between the body portion and the head portion and protruding outward from the connection terminal.

상기 접속홀이 상기 접속봉의 접속방향과 비일치하는 방향을 향한 상태에서 상기 접속단자가 상기 접속부로 삽입되고, 상기 접속홀이 상기 접속봉의 접속방향과 일치하도록 상기 접속단자가 회전되는 것을 특징으로 한다.The connection terminal is inserted into the connection part in a state in which the connection hole faces a direction that does not coincide with the connection direction of the connection rod, and the connection terminal is rotated so that the connection hole coincides with the connection direction of the connection rod. .

또한, 본 발명은 지상개폐기용 엘보접속재의 접속방법으로서, 전력케이블 단부의 외피를 탈피하여 도체가 노출되는 단계, 상기 전력케이블의 단부에 케이블 어댑터가 장착되는 단계, 상기 케이블 어댑터에 접속단자가 결합되어 상기 도체에 상기 접속단자가 밀착되는 단계, 상기 전력케이블의 단부가 절연하우징에 삽입되어 상기 절연하우징 내부에 상기 접속단자가 위치하는 단계, 상기 접속단자를 회전시켜 개폐기 부싱에 결합된 접속봉의 접속방향과 상기 접속단자의 접속방향을 서로 일치시키는 단계 및 상기 개폐기 부싱이 상기 절연하우징에 삽입되어 상기 절연하우징 내부에서 상기 접속봉과 상기 접속단자가 접속하는 단계를 포함한다.In addition, the present invention is a connection method of an elbow connector for a ground switch, in which the conductor is exposed by peeling the outer sheath of the end of the power cable, the step of mounting a cable adapter to the end of the power cable, and coupling the connection terminal to the cable adapter. so that the connection terminal is in close contact with the conductor, the end of the power cable is inserted into the insulation housing so that the connection terminal is located inside the insulation housing, and the connection terminal is rotated to connect the connection rod coupled to the switchgear bushing. A step of matching a direction and a connection direction of the connection terminal with each other, and a step of inserting the switch bushing into the insulating housing so that the connecting rod and the connection terminal are connected inside the insulating housing.

상기 접속단자는 상기 케이블 어댑터에 하부가 결합되는 몸체부 및 상기 몸체부의 상부에 일체로 형성되고 상기 접속봉이 관통되는 접속홀이 형성되고 상기 몸체부의 너비 보다 더 큰 너비를 갖는 헤드부를 포함하는 것을 특징으로 한다.The connection terminal includes a body portion coupled to the lower portion of the cable adapter and a head portion integrally formed on an upper portion of the body portion, having a connection hole through which the connecting rod passes, and having a width greater than that of the body portion. to be

본 발명은 몸체부의 너비 보다 더 큰 너비를 갖는 헤드부로 이루어진 접속단자의 구성을 통해 지상개폐기의 전력케이블 접속시 작업자가 절연하우징을 잡고 들어올려도 전력케이블에 결합된 접속단자가 케이블 삽입부를 통해 절연하우징에서 하향 이탈되지 않기 때문에 접속단자의 비접속으로 인한 기기의 방전을 방지할 수 있고 작업자의 안전사고를 예방할 수 있는 효과가 있다.According to the present invention, through the configuration of the connection terminal consisting of the head part having a width larger than the width of the body part, when connecting the power cable of the ground switch, even if the worker holds and lifts the insulation housing, the connection terminal coupled to the power cable is connected to the insulation housing through the cable insertion part. Since it does not deviate downward from the terminal, it is possible to prevent discharge of the device due to disconnection of the connection terminal, and there is an effect of preventing safety accidents of workers.

도 1은 본 발명의 실시예에 따른 지상개폐기용 엘보접속재를 나타낸 분해 사시도,
도 2 및 도 3은 본 발명의 실시예에 따른 지상개폐기용 엘보접속재의 조립과정을 나타낸 단면도,
도 4는 본 발명의 실시예에 따른 지상개폐기용 엘보접속재의 접속방법을 나타낸 순서도이다.1 is an exploded perspective view showing an elbow connector for a ground switch according to an embodiment of the present invention;
2 and 3 are cross-sectional views showing an assembly process of an elbow connector for a ground switch according to an embodiment of the present invention;
4 is a flow chart showing a connection method of an elbow connector for a ground switch according to an embodiment of the present invention.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 지상개폐기용 엘보접속재 및 접속방법의 실시예를 설명한다. 이러한 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서, 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Hereinafter, an embodiment of an elbow connector and connection method for a ground switch according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or practice of a user or operator. Therefore, definitions of these terms will have to be made based on the content throughout this specification.

도 1은 본 발명의 실시예에 따른 지상개폐기용 엘보접속재를 나타낸 분해 사시도이다.1 is an exploded perspective view showing an elbow connector for a ground switch according to an embodiment of the present invention.

도 1을 참조하면, 본 발명의 바람직한 실시예에 따른 지상개폐기용 엘보접속재는 절연하우징(100) 및 접속단자(200)를 포함하는 구성요소로 이루어지며, 이를 상세히 설명하면 다음과 같다.Referring to FIG. 1, an elbow connector for a ground switch according to a preferred embodiment of the present invention is composed of components including an insulating housing 100 and a connection terminal 200, which will be described in detail as follows.

절연하우징(100)은 케이블 삽입부(110)와 부싱 삽입부(120)와 접속부(130)를 구비한다. 절연하우징(100)은 속이 빈 중공의 형태로 외형은 대략 'T'자 형상으로 이루어진다. 케이블 삽입부(110)와 부싱 삽입부(120)는 일체로 형성되고 내부는 서로 연통한다.The insulation housing 100 includes a cable insertion portion 110, a bushing insertion portion 120, and a connection portion 130. The insulation housing 100 has a hollow shape and has an approximate 'T' shape. The cable insertion part 110 and the bushing insertion part 120 are integrally formed and communicate with each other.

케이블 삽입부(110)는 수직방향으로 형성되며, 단면이 원형 또는 타원형 등의 중공의 원기둥 형태로 이루어지거나, 단면이 삼각형 또는 사각형 등의 각진 중공의 각기둥 형태로 이루어질 수 있다.The cable insertion portion 110 is formed in a vertical direction, and may have a cross section of a circular or elliptical hollow cylinder shape, or a cross section of a triangular or quadrangular hollow prism shape.

케이블 삽입부(110)의 하면에는 상하로 개방된 하면 개구부가 형성된다. 케이블 삽입부(110)에 형성된 하면 개구부를 통해 전력케이블(10)의 단부가 수직으로 상향 삽입된다. 전력케이블(10)의 단부에는 접속단자(200)를 전력케이블(10)에 결합하기 위한 케이블 어댑터(11)가 장착된다.An opening is formed on the lower surface of the cable insertion unit 110 when it is opened vertically. The end of the power cable 10 is vertically inserted upward through the lower opening formed in the cable insertion part 110 . A cable adapter 11 for coupling the connection terminal 200 to the power cable 10 is mounted at the end of the power cable 10 .

부싱 삽입부(120)는 수평방향으로 형성되며, 단면이 원형 또는 타원형 등의 중공의 원기둥 형태로 이루어지거나, 단면이 삼각형 또는 사각형 등의 각진 중공의 각기둥 형태로 이루어질 수 있다.The bushing insertion portion 120 is formed in a horizontal direction and may have a cross section in the form of a hollow cylinder such as a circle or an ellipse, or a cross section in the form of an angular hollow prism such as a triangle or a square.

부싱 삽입부(120)의 단부면에는 측면 개구부가 형성된다. 부싱 삽입부(120)에 형성된 측면 개구부를 통해 지상개폐기(20)에 조립된 개폐기 부싱(21)이 절연하우징(100)의 측방향에서 수평으로 삽입된다. 개폐기 부싱(21)의 단부에는 스터드볼트 등과 같은 접속봉(22)이 수평으로 결합된다.A side opening is formed on an end surface of the bushing insertion part 120 . The switch bushing 21 assembled to the ground switch 20 is inserted horizontally from the side of the insulation housing 100 through the side opening formed in the bushing insert 120 . A connecting rod 22 such as a stud bolt is horizontally coupled to an end of the switchgear bushing 21.

접속부(130)는 접속단자(200)와 접속봉(22) 간의 접속이 이루어지는 곳으로, 케이블 삽입부(110)와 부싱 삽입부(120)가 교차하는 절연하우징(100)의 내부에 형성된다.The connection part 130 is a place where the connection between the connection terminal 200 and the connection rod 22 is made, and is formed inside the insulation housing 100 where the cable insertion part 110 and the bushing insertion part 120 intersect.

접속부(130)는 접속단자(200)의 헤드부(220)가 통과하는 개방홀(131)과, 개방홀(131)의 양측에 형성되어 헤드부(220)가 안착되는 걸림턱(132)을 포함하여 구성될 수 있다.The connection part 130 includes an open hole 131 through which the head part 220 of the connection terminal 200 passes, and a locking jaw 132 formed on both sides of the open hole 131 to which the head part 220 is seated. can be configured to include

한편, 절연하우징(100)은 절연플러그(300)가 삽입되는 플러그 삽입부(140)를 더 포함하여 구성될 수 있다. 플러그 삽입부(140)는 부싱 삽입부(120) 단부의 반대방향으로 수평하게 연장형성된다. 절연하우징(100)은 부싱 삽입부(120)의 길이가 플러그 삽입부(140)의 길이 보다 더 긴 비대칭 구조로 이루어질 수 있다. Meanwhile, the insulating housing 100 may further include a plug insertion portion 140 into which the insulating plug 300 is inserted. The plug insertion portion 140 extends horizontally in the opposite direction of the end of the bushing insertion portion 120 . The insulation housing 100 may have an asymmetrical structure in which the length of the bushing insertion part 120 is longer than the length of the plug insertion part 140 .

플러그 삽입부(140)의 단부면에는 부싱 삽입부(120)와 마찬가지로 측면 개구부가 형성된다. 즉, 절연하우징(100)은 양 측단면이 개방된 형태가 될 수 있다.A side opening is formed at an end surface of the plug insertion portion 140, similarly to the bushing insertion portion 120. That is, the insulating housing 100 may have a shape in which both end surfaces are open.

플러그 삽입부(140)에 형성된 측면 개구부를 통해 절연플러그(300)가 삽입되고, 절연플러그(300)를 축방향 관통하여 절연플러그(300)의 내부에는 스터드볼트가 결합된다. 플러그 삽입부(140)의 단부에 절연캡(400)이 장착되어 플러그 삽입부(140)에 형성된 측면 개구부가 폐쇄된다.The insulation plug 300 is inserted through the side opening formed in the plug insertion portion 140, and a stud bolt is coupled to the inside of the insulation plug 300 by penetrating the insulation plug 300 in the axial direction. An insulating cap 400 is mounted on an end of the plug insertion portion 140 to close the side opening formed in the plug insertion portion 140 .

접속단자(200)는 전력케이블(10)의 단부에 장착된 케이블 어댑터(11)에 결합되고, 절연하우징(100) 내부에 형성된 접속부(130)에서 개폐기 부싱(21)에 결합된 접속봉(22)에 접속된다.The connecting terminal 200 is coupled to the cable adapter 11 mounted at the end of the power cable 10, and the connecting rod 22 is coupled to the switch bushing 21 at the connecting portion 130 formed inside the insulating housing 100. ) is connected to

접속단자(200)는 몸체부(210)와 헤드부(220)를 포함하여 구성될 수 있다.The connection terminal 200 may include a body portion 210 and a head portion 220.

몸체부(210)는 일정 길이를 갖는 막대와 같은 봉형상으로, 횡단면이 원형 또는 타원형 등의 원기둥이거나 횡단면이 삼각형 또는 사각형 등의 각기둥 일 수 있다. 몸체부(210)의 하부는 케이블 어댑터(11)에 수직으로 결합된다.The body portion 210 is shaped like a rod having a certain length, and may have a cross section of a cylinder such as a circle or an ellipse, or a cross section of a prism such as a triangle or a square. The lower part of the body part 210 is vertically coupled to the cable adapter 11 .

헤드부(220)는 몸체부(210)의 상부에 일체로 형성된다. 헤드부(220)는 납작하게 압착된 형상으로 접속봉(22)이 관통되는 접속홀(221)이 헤드부(220)의 중앙을 관통하여 형성된다. 이때, 헤드부(220)는 몸체부의 너비 보다 더 큰 너비를 갖는다.The head part 220 is integrally formed on the upper part of the body part 210 . The head portion 220 has a flat compressed shape, and a connection hole 221 through which the connecting rod 22 passes is formed through the center of the head portion 220 . At this time, the head portion 220 has a larger width than the width of the body portion.

한편, 접속단자(200)는 걸림날개(230)를 더 포함하여 구성될 수 있다. 걸림날개(230)는 몸체부(210)와 헤드부(220) 사이에 수평하게 형성된다. 걸림날개(230)는 몸체부(210)와 헤드부(220) 사이에서 접속단자(200)의 외측방향으로 일정 길이로 연장형성된다.On the other hand, the connection terminal 200 may be configured to further include the locking wing 230. The locking wing 230 is formed horizontally between the body portion 210 and the head portion 220 . Engagement wing 230 is formed to extend a certain length in the outer direction of the connection terminal 200 between the body portion 210 and the head portion 220.

도 2 및 도 3은 본 발명의 실시예에 따른 지상개폐기용 엘보접속재의 조립과정을 나타낸 단면도이고, 도 4는 본 발명의 실시예에 따른 지상개폐기용 엘보접속재의 접속방법을 나타낸 순서도이다.2 and 3 are cross-sectional views showing an assembly process of an elbow connector for a ground switch according to an embodiment of the present invention, and FIG. 4 is a flow chart showing a connection method of an elbow connector for a ground switch according to an embodiment of the present invention.

도 1 내지 도 4를 참조하면, 전력케이블(10)의 직선화 유지작업(annealing)을 한 후, 전력케이블(10) 단부의 외피를 탈피한다. 전력케이블(10)의 탈피순서는 중성선이 손상되지 않도록 하면서 전력케이블(10)의 외피를 제거하고, 외부 반도전층을 제거한 다음 절연층을 제거하여 도체가 노출되도록 한다(단계 S100).Referring to FIGS. 1 to 4 , after annealing of the power cable 10 is performed, the sheath at the end of the power cable 10 is peeled off. In order to strip the power cable 10, the outer sheath of the power cable 10 is removed while the neutral wire is not damaged, the outer semiconductive layer is removed, and then the insulation layer is removed to expose the conductor (step S100).

도체가 노출된 전력케이블(10)의 단부에 케이블 어댑터(11)를 밀어 넣어 케이블 어댑터(11)가 전력케이블(10)의 단부에 억지끼움 결합되도록 케이블 어댑터(11)를 장착한다(단계 S200).Insert the cable adapter 11 into the end of the power cable 10 where the conductor is exposed, and mount the cable adapter 11 so that the cable adapter 11 is press-fitted to the end of the power cable 10 (step S200). .

케이블 어댑터(11)에 접속단자(200)의 몸체부(210)를 밀어 넣어 도체에 몸체부(210)가 억지끼움되도록 하여 접속단자(200)를 도체에 밀착시킨다(단계 S300).The body portion 210 of the connection terminal 200 is pushed into the cable adapter 11 so that the body portion 210 is press-fitted to the conductor so that the connection terminal 200 is brought into close contact with the conductor (step S300).

절연플러그(300)에 스터드볼트를 결합하고, 전력케이블(10)의 단부가 절연하우징(100)에 삽입되도록 절연하우징(100)을 케이블 어댑터(11) 방향으로 밀어 넣어 절연하우징(100) 내부에 접속단자(200)가 위치하도록 한다(단계 S400).A stud bolt is coupled to the insulation plug 300, and the insulation housing 100 is pushed in the direction of the cable adapter 11 so that the end of the power cable 10 is inserted into the insulation housing 100 so that the inside of the insulation housing 100 The connection terminal 200 is located (step S400).

전력케이블(10)의 케이블 어댑터(11)에 결합된 접속단자(200)의 헤드부(220)에 형성된 접속홀(221)이 개폐기 부싱(21)에 결합된 접속봉(22)의 접속방향과 비일치하는 방향을 향한 상태에서 절연하우징(100)의 케이블 삽입부(110)를 통해 절연하우징(100) 내부로 전력케이블(10)이 상향 삽입된다.The connection hole 221 formed in the head part 220 of the connection terminal 200 coupled to the cable adapter 11 of the power cable 10 is connected to the connection direction of the connection rod 22 coupled to the switch bushing 21 and The power cable 10 is upwardly inserted into the insulation housing 100 through the cable insertion portion 110 of the insulation housing 100 while facing the non-matching direction.

부연하면, 접속봉(22)의 축방향에 접속홀(221)이 마주하지 않은 상태로 접속단자(200)가 절연하우징(100) 내부로 삽입된다. 이때, 접속부(130)에 형성된 개방홀(131)을 헤드부(220)가 통과하게 되어 접속단자(200)의 헤드부(220)는 접속부(130)에 위치할 수 있게 된다.In other words, the connecting terminal 200 is inserted into the insulating housing 100 in a state in which the connecting holes 221 do not face each other in the axial direction of the connecting rod 22 . At this time, the head part 220 passes through the open hole 131 formed in the connection part 130 so that the head part 220 of the connection terminal 200 can be positioned in the connection part 130 .

접속단자(200)를 회전시켜 개폐기 부싱(21)에 결합된 접속봉(22)의 접속방향과 접속단자(200)의 접속방향을 서로 일치시킨다(단계 S500).The connection terminal 200 is rotated to match the connection direction of the connection bar 22 coupled to the switch bushing 21 and the connection direction of the connection terminal 200 (step S500).

접속홀(221)이 접속봉(22)의 접속방향과 일치하도록 전력케이블(10) 또는 접속단자(200)를 회전시킨다. 부연하면, 접속봉(22)의 축방향에 접속홀(221)이 마주하도록 전력케이블(10) 또는 접속단자(200)를 일정 각도로 회전시킨다.The power cable 10 or the connection terminal 200 is rotated so that the connection hole 221 coincides with the connection direction of the connection bar 22. In other words, the power cable 10 or the connecting terminal 200 is rotated at a certain angle so that the connecting hole 221 faces the axial direction of the connecting rod 22 .

접속봉(22)의 축방향과 마주하도록 회전된 접속단자(200)의 몸체부(210)와 헤드부(220) 사이에 형성된 걸림날개(230)가 접속부(130)의 개방홀(131) 양측에 형성된 걸림턱(132)에 안착됨으로써 작업자가 절연하우징(100)을 잡고 들어올려도 접속단자(200)는 케이블 삽입부(110)를 통해 절연하우징(100)에서 하향 이탈되지 않게 된다.Engaging wings 230 formed between the body portion 210 and the head portion 220 of the connecting terminal 200 rotated to face the axial direction of the connecting rod 22 are both sides of the open hole 131 of the connecting portion 130. By being seated on the locking jaw 132 formed on, even if a worker holds and lifts the insulating housing 100, the connection terminal 200 is not downwardly separated from the insulating housing 100 through the cable insertion part 110.

지상개폐기(20)에 조립된 개폐기 부싱(21)이 부싱 삽입부(120)에 삽입되도록 절연하우징(100)을 개폐기 부싱(21)을 향해 밀어 넣어 절연하우징(100) 내부의 접속부(130)에서 개폐기 부싱(21)에 결합된 접속봉(22)에 전력케이블(10)에 결합된 접속단자(200)를 접속시킨다(단계 S600).Push the insulation housing 100 toward the switch bushing 21 so that the switch bushing 21 assembled to the ground switch 20 is inserted into the bushing insert 120, and The connecting terminal 200 coupled to the power cable 10 is connected to the connecting rod 22 coupled to the switchgear bushing 21 (step S600).

본 발명의 일 실시예에 따른 지상개폐기용 엘보접속재 및 접속방법은, 몸체부(210)의 너비 보다 더 큰 너비를 갖는 헤드부(220)로 이루어진 접속단자(200)의 구성을 통해 지상개폐기(20)의 전력케이블(10) 접속시 작업자가 절연하우징(100)을 잡고 들어올려도 전력케이블(10)에 결합된 접속단자(200)가 케이블 삽입부(110)를 통해 절연하우징(100)에서 하향 이탈되지 않기 때문에 접속단자(200)의 비접속으로 인한 기기의 방전을 방지할 수 있고 작업자의 안전사고를 예방할 수 있다.An elbow connector and connection method for a ground switch according to an embodiment of the present invention is a ground switch ( When connecting the power cable 10 of 20), even if a worker holds and lifts the insulation housing 100, the connection terminal 200 coupled to the power cable 10 moves downward from the insulation housing 100 through the cable insertion part 110. Since the connection terminal 200 is not disconnected, discharge of the device due to disconnection of the connection terminal 200 can be prevented and safety accidents of workers can be prevented.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.The present invention has been described with reference to the embodiments shown in the drawings, but this is only exemplary, and those skilled in the art can make various modifications and equivalent other embodiments. will understand Therefore, the true technical protection scope of the present invention should be determined by the claims below.

10: 전력케이블 11: 케이블 어댑터
20: 개폐기 21: 개폐기 부싱
22: 접속봉 100: 절연하우징
110: 케이블 삽입부 120: 부싱 삽입부
130: 접속부 131: 개방홀
132: 걸림턱 200: 접속단자
210: 몸체부 220: 헤드부
221: 접속홀 230: 걸림날개10: power cable 11: cable adapter
20: switchgear 21: switchgear bushing
22: connecting rod 100: insulating housing
110: cable insertion part 120: bushing insertion part
130: connection part 131: open hole
132: locking jaw 200: connection terminal
210: body part 220: head part
221: connection hole 230: hanging wing

Claims (6)

전력케이블의 단부가 수직으로 상향 삽입되는 케이블 삽입부와, 개폐기 부싱이 측방향에서 수평으로 삽입되는 부싱 삽입부가 일체로 형성되고, 상기 케이블 삽입부와 상기 부싱 삽입부가 교차하는 접속부가 내부에 형성된 중공의 절연하우징; 및
상기 전력케이블의 단부에 장착된 케이블 어댑터에 결합되고, 상기 절연하우징 내부에 형성된 상기 접속부에서 상기 개폐기 부싱에 결합된 접속봉에 접속되는 접속단자; 를 포함하며,
상기 접속단자는 상기 케이블 어댑터에 하부가 결합되는 몸체부와, 상기 몸체부의 상부에 일체로 형성되고 상기 접속봉이 관통되는 접속홀이 형성되고 상기 몸체부의 너비 보다 더 큰 너비를 갖는 헤드부를 포함하는 것을 특징으로 하는 지상개폐기용 엘보접속재.A cable insertion part into which the end of the power cable is inserted vertically upward and a bushing insertion part into which a switch bushing is inserted horizontally from the side are integrally formed, and a connection part where the cable insertion part and the bushing insertion part intersect is formed inside a hollow hollow of the insulation housing; and
a connection terminal coupled to a cable adapter mounted at an end of the power cable and connected to a connection rod coupled to the switch bushing at the connection portion formed inside the insulation housing; Including,
The connection terminal includes a body portion coupled to the lower portion of the cable adapter, and a head portion integrally formed on an upper portion of the body portion and having a connection hole through which the connecting rod passes, and having a width greater than that of the body portion. Elbow connection material for ground switchgear. 제1항에 있어서,
상기 접속부는 상기 접속단자의 헤드부가 통과하는 개방홀과, 상기 개방홀의 양측에 형성되어 상기 헤드부가 안착되는 걸림턱을 포함하는 것을 특징으로 하는 지상개폐기용 엘보접속재.According to claim 1,
The connection part comprises an open hole through which the head of the connection terminal passes, and a locking step formed on both sides of the open hole and on which the head is seated. 제2항에 있어서,
상기 접속단자는,
상기 몸체부와 상기 헤드부 사이에 형성되어 상기 접속단자의 외측방향으로 돌출된 걸림날개를 포함하는 것을 특징으로 하는 지상개폐기용 엘보접속재.According to claim 2,
The connection terminal,
An elbow connector for a ground switch, characterized in that it comprises a locking wing formed between the body portion and the head portion and protruding outward of the connection terminal. 제1항에 있어서,
상기 접속홀이 상기 접속봉의 접속방향과 비일치하는 방향을 향한 상태에서 상기 접속단자가 상기 접속부로 삽입되고, 상기 접속홀이 상기 접속봉의 접속방향과 일치하도록 상기 접속단자가 회전되는 것을 특징으로 하는 지상개폐기용 엘보접속재.According to claim 1,
Characterized in that the connecting terminal is inserted into the connecting portion in a state in which the connecting hole faces a direction that does not coincide with the connecting direction of the connecting rod, and the connecting terminal is rotated so that the connecting hole coincides with the connecting direction of the connecting rod Elbow connector for ground switch. a) 전력케이블 단부의 외피를 탈피하여 도체가 노출되는 제1단계;
b) 상기 전력케이블의 단부에 케이블 어댑터가 장착되는 제2단계;
c) 상기 케이블 어댑터에 접속단자가 결합되어 상기 도체에 상기 접속단자가 밀착되는 제3단계;
d) 상기 전력케이블의 단부가 절연하우징에 삽입되어 상기 절연하우징 내부에 상기 접속단자가 위치하는 제4단계;
e) 상기 접속단자를 회전시켜 개폐기 부싱에 결합된 접속봉의 접속방향과 상기 접속단자의 접속방향을 서로 일치시키는 제5단계; 및
f) 상기 개폐기 부싱이 상기 절연하우징에 삽입되어 상기 절연하우징 내부에서 상기 접속봉과 상기 접속단자가 접속하는 제6단계;
를 포함하는 지상개폐기용 엘보접속재의 접속방법.a) a first step of exposing the conductor by peeling off the sheath of the end of the power cable;
b) a second step of mounting a cable adapter to the end of the power cable;
c) a third step in which the connection terminal is coupled to the cable adapter and the connection terminal is brought into close contact with the conductor;
d) a fourth step in which an end of the power cable is inserted into an insulating housing and the connection terminal is located inside the insulating housing;
e) a fifth step of matching the connection direction of the connection bar coupled to the switch bushing with the connection direction of the connection terminal by rotating the connection terminal; and
f) a sixth step of inserting the switch bushing into the insulating housing and connecting the connecting rod and the connecting terminal inside the insulating housing;
Connection method of elbow connector for ground switch comprising a. 제5항에 있어서,
상기 접속단자는,
상기 케이블 어댑터에 하부가 결합되는 몸체부; 및
상기 몸체부의 상부에 일체로 형성되고 상기 접속봉이 관통되는 접속홀이 형성되고 상기 몸체부의 너비 보다 더 큰 너비를 갖는 헤드부;
를 포함하는 것을 특징으로 하는 지상개폐기용 엘보접속재의 접속방법.According to claim 5,
The connection terminal,
a body portion coupled to the lower portion of the cable adapter; and
a head portion integrally formed on an upper portion of the body portion, having a connection hole through which the connecting rod passes, and having a width greater than that of the body portion;
Connection method of elbow connector for ground switchgear, characterized in that it comprises a.
KR1020210178583A 2021-12-14 2021-12-14 Elbow connector for ground switching device and connecting method KR102621388B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100869596B1 (en) * 2008-06-27 2008-11-21 태형전기(주) Connector for underground distribution line
KR20210149400A (en) * 2020-06-02 2021-12-09 한국전력공사 Connection terminal structure of fuse cable for ground switching

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100869596B1 (en) * 2008-06-27 2008-11-21 태형전기(주) Connector for underground distribution line
KR20210149400A (en) * 2020-06-02 2021-12-09 한국전력공사 Connection terminal structure of fuse cable for ground switching

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