KR200455482Y1 - Terminal Block Connection Structure of Ground Transformer - Google Patents

Terminal Block Connection Structure of Ground Transformer Download PDF

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Publication number
KR200455482Y1
KR200455482Y1 KR2020090010294U KR20090010294U KR200455482Y1 KR 200455482 Y1 KR200455482 Y1 KR 200455482Y1 KR 2020090010294 U KR2020090010294 U KR 2020090010294U KR 20090010294 U KR20090010294 U KR 20090010294U KR 200455482 Y1 KR200455482 Y1 KR 200455482Y1
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South Korea
Prior art keywords
bushing
terminal plate
clamp
external connection
transformer
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KR2020090010294U
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Korean (ko)
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KR20110001538U (en
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장두영
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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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • H01R13/5812—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part the cable clamping being achieved by mounting the separate part on the housing of the coupling device
    • 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
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
    • 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
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section

Abstract

본 고안은 부싱에 대하여 단자판을 분리하거나 연결할 수 있도록 한 지상변압기의 단자판 연결구조에 관한 것이다.The present invention relates to a terminal plate connecting structure of a ground transformer so that the terminal plate can be separated or connected to the bushing.

개시고안은 변압기의 일측에 부싱이 고정되고, 상기 부싱의 외부 접속부에 단자판이 연결되는 지상변압기의 단자판 연결구조에 있어서, 상기 단자판은 몸체의 한쪽 선단에 연장되어 상기 부싱의 외부 접속부가 수용되는 제1클램프부와, 상기 제1클램프부에 맞대어 연결되면서 탈부착가능한 제2클램프부가 구비되어, 상기 제1,2클램프부를 통하여 상기 부싱의 외부 접속부와 연결하는 구조로 되어 있다. 따라서, 단자판에서 외부로 연결되는 저압측 케이블단자를 분리하지 않고서도 지상변압기를 교체할 수 있으므로 지상변압기의 교체작업성을 향상시킬 수 있다.In the disclosure, a bushing is fixed to one side of a transformer, and a terminal plate connection structure of a ground transformer in which a terminal plate is connected to an external connection portion of the bushing, wherein the terminal plate extends at one end of the body to accommodate the external connection portion of the bushing. A first clamp portion and a second clamp portion detachably attached to and coupled to the first clamp portion are provided to connect the external connection portion of the bushing through the first and second clamp portions. Therefore, the ground transformer can be replaced without removing the low voltage cable terminal connected to the outside from the terminal plate, thereby improving the workability of the ground transformer.

Description

지상변압기의 단자판 연결구조{STRUCTURE FOR CONNECTINGG SECONDARY CONNECTION TERMINAL OF GROUND TRANSFORMER}STRUCTURE FOR CONNECTINGG SECONDARY CONNECTION TERMINAL OF GROUND TRANSFORMER}

본 고안은 지상변압기의 단자판 연결구조에 관한 것으로, 특히 부싱에 대하여 단자판을 분리하거나 연결할 수 있도록 한 지상변압기의 단자판 연결구조에 관한 것이다.The present invention relates to a terminal plate connection structure of the ground transformer, and more particularly, to a terminal plate connection structure of the ground transformer so that the terminal plate can be separated or connected to the bushing.

일반적으로, 지상변압기는 22.9KV의 특고압 지중 배선선로에서 가정용이나 산업용의 각종 설비에 저압으로 전력을 공급하기 위하여 전압을 강하하는 수단으로 사용되고 있다.In general, the ground transformer is used as a means for dropping the voltage in order to supply electric power at low pressure to a variety of household or industrial equipment in the high voltage underground wiring line of 22.9KV.

종래기술에 따른 지상변압기의 단자판 연결구조는 도 1 및 도 2에 도시된 바와 같이, 변압기(100)의 측벽에 부싱(110)이 장착되도록 되어 있고, 상기 부싱(110)의 외부 접속부(112)에 단자판(120)이 연결됨과 더불어 내부 접속부(114)에 복수의 너트(116)를 매개로 1차 케이블단자(102)를 접속하도록 되어 있다.Terminal plate connection structure of the ground transformer according to the prior art, as shown in Figures 1 and 2, the bushing 110 is mounted on the side wall of the transformer 100, the external connection 112 of the bushing 110 In addition to the terminal plate 120 is connected to the primary cable terminal 102 via a plurality of nuts 116 to the internal connection portion 114.

상기 단자판(120)은 2차 케이블단자(104)가 연결되는 몸체(122)와, 상기 몸 체(122)의 선단에 연장되어 상기 부싱(110)의 외부 접속부(112)와 연결되는 클램프부(124)로 이루어져 있다. 상기 몸체(122)에는 일정 간격을 두고 복수열로 단자연결홀(122a)이 형성되어 상기 2차 케이블단자(104)가 접속되도록 되어있다.The terminal plate 120 includes a body 122 to which the secondary cable terminal 104 is connected, and a clamp part extending to the front end of the body 122 and connected to an external connection 112 of the bushing 110. 124). The body 122 has a plurality of rows of terminal connection holes 122a formed at predetermined intervals so that the secondary cable terminals 104 are connected to each other.

상기 클램프부(124)는 도 3a 및 도 3b에 도시된 바와 같이, 원주방향으로 일정길이로 절개된 절개부(124a)와, 상기 절개부(124a)의 선단을 따라 형성된 플랜지부(124b)가 형성되어 있다.As shown in FIGS. 3A and 3B, the clamp portion 124 includes a cutout portion 124a cut to a predetermined length in the circumferential direction, and a flange portion 124b formed along the distal end of the cutout portion 124a. Formed.

따라서, 단자판(120)의 클램프부(124)를 상기 부싱(110)의 외부 접속부(112)에 삽입한 후 클램프부(124)의 플랜지부(124b)에 보울트(126)를 죄어서 연결하게 된다.Accordingly, the clamp 124 of the terminal plate 120 is inserted into the external connection 112 of the bushing 110, and then the bolt 126 is clamped to the flange 124b of the clamp 124. .

그런데, 종래 지상변압기의 단자판 연결구조는 변압기(100)에 장착된 부싱(110)의 내부 접촉부(112)에 단자판(120)의 클램프부(124)를 연결하도록 되어 있지만, 단자판(120)의 클램프부(124)를 상기 부싱(110)의 내부 접속부(114)에 연결한 경우에 필요시 재분리가 어려운 문제점이 있었다.By the way, the conventional terminal plate connection structure of the ground transformer is to connect the clamp portion 124 of the terminal plate 120 to the internal contact portion 112 of the bushing 110 mounted on the transformer 100, but the clamp of the terminal plate 120 When the portion 124 is connected to the internal connection 114 of the bushing 110, there was a problem that it is difficult to re-separate if necessary.

즉 부싱(110)에서 단자판(120)을 분리하기 위하여 클램프부(124)의 플랜지부(124b)에서 보울트(126)를 해체하더라도, 도 3b와 같이 클램프부(124)의 절개부(124a)가 조여진 위치로 그대로 유지됨으로써 단자판(120)을 부싱(110)으로 분리하기 어려웠다.That is, even if the bolt 126 is disassembled from the flange portion 124b of the clamp portion 124 to separate the terminal plate 120 from the bushing 110, the cutout portion 124a of the clamp portion 124 may be removed as shown in FIG. 3B. It was difficult to separate the terminal plate 120 into the bushing 110 by being kept in the tightened position.

이에 따라, 변압기를 교체할 때, 부싱(110)에서 단자판(120)을 분리하는 작업이 곤란하여 단자판(120)에서 2차 케이블단자(104)를 개별 분리하는 작업시간이 많이 소요되고, 또한 재연결할 때 변압기(100)의 상배열이 바뀔 수 있으므로 상불 일치에 따른 고객피해가 발생될 수 있는 문제점이 있었다. Accordingly, when replacing the transformer, it is difficult to separate the terminal plate 120 from the bushing 110, so that a separate operation time for separating the secondary cable terminal 104 from the terminal plate 120 takes a lot of time, Since the phase arrangement of the transformer 100 may be changed when connecting, there may be a problem that customer damage may occur due to a phase mismatch.

본 고안의 목적은 상술한 문제점을 해소하기 위해 안출된 것으로, 2차 케이블단자를 분리하지 않고서 부싱에 대하여 단자판을 분리하거나 연결할 수 있도록 한 지상변압기의 단자판 연결구조를 제공하는데 있다.An object of the present invention is to solve the above-described problems, to provide a terminal plate connection structure of the ground transformer to separate or connect the terminal plate to the bushing without separating the secondary cable terminal.

상기 목적을 달성하기 위해 본 고안은 변압기의 일측에 부싱이 고정되고, 상기 부싱의 외부 접속부에 단자판이 연결되는 지상변압기의 단자판 연결구조에 있어서, 상기 단자판은 몸체의 한쪽 선단에 연장되어 상기 부싱의 외부 접속부가 수용되는 제1클램프부와, 상기 제1클램프부에 맞대어 연결되면서 탈부착가능한 제2클램프부가 구비되어, 상기 제1,2클램프부를 통하여 상기 부싱의 외부 접속부와 연결하는 구조로 되어 있다.In order to achieve the above object, the present invention has a bushing fixed to one side of a transformer, and a terminal plate connection structure of a ground transformer in which a terminal plate is connected to an external connection portion of the bushing, wherein the terminal plate extends at one end of the body to provide A first clamp portion for receiving an external connection portion and a second clamp portion detachably attached to the first clamp portion and connected to the external connection portion of the bushing are provided through the first and second clamp portions.

상기 제1,2클램프부에는 각각 상기 부싱의 외부 접속부가 수용되는 수용홈이 각각 형성되고, 상기 외부 접속부의 외경이 상기 수용홈 각각에 절반씩 수용되도로 되어 있다. 여기서, 상기 외부 접속부의 외경은 상기 수용홈 전체의 내경과 동일하게 하는 것이 바람직하다.Receiving grooves are formed in the first and second clamp portions, respectively, for accommodating the external connecting portions of the bushings, and the outer diameter of the external connecting portions is accommodated in each of the receiving grooves. Here, the outer diameter of the outer connecting portion is preferably equal to the inner diameter of the entire receiving groove.

상기 제1,2클램프부 각각에 플랜지부가 연장되고 상기 플랜지부에 보울트를 사용하여 결합하도록 되어 있다. 여기서, 보울트는 진동에 따른 풀림이 방지되는 풀림방지형 보울트로 사용하는 것이 바람직하다.A flange portion extends to each of the first and second clamp portions and is coupled to the flange portion using a bolt. Here, the bolt is preferably used as an anti-loosening bowl to prevent loosening due to vibration.

상기 제1,2클램프부의 수용홈 각각에 도전성 컴파운드를 도포한 상태로 상기 부싱의 외부 접속부를 연결하도록 하는 것이 바람직하다. It is preferable to connect the external connection portion of the bushing with the conductive compound applied to each of the receiving grooves of the first and second clamp portions.

이와 같은 본 고안에 따른 지상변압기의 단자판 연결구조에 의하면, 단자판에서 외부로 연결된 2차 케이블단자를 분리하지 않고서도 지상변압기를 교체할 수 있으므로 지상변압기의 교체작업성을 향상시킬 수 있다. 또한, 변압기 교체시 정전시간을 대폭적으로 단축할 수 있게 된다. According to the terminal plate connection structure of the ground transformer according to the present invention, it is possible to replace the ground transformer without removing the secondary cable terminal connected to the outside from the terminal plate can improve the replacement workability of the ground transformer. In addition, it is possible to significantly reduce the power failure time when replacing the transformer.

더욱이, 기존과 달리 지상변압기 교체시 상배열이 바뀌는 것을 방지하여 상불일치를 근본적으로 차단할 수 있고, 상불일치로 인한 고객피해를 예방할 수 있게 된다.Moreover, unlike the existing ones, it is possible to fundamentally block the payment agreement by preventing the phase arrangement from changing when the ground transformer is replaced, and prevent the customer damage due to the payment failure.

이하, 본 고안에 따른 바람직한 실시예를 첨부한 도면에 따라 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 4는 본 고안에 따른 지상변압기의 단자판이 연결된 상태를 도시한 측면도이고, 도 5는 도 4에서 부싱과 단자판을 분리하여 도시한 사시도이다.Figure 4 is a side view showing a state in which the terminal plate of the ground transformer according to the present invention is connected, Figure 5 is a perspective view showing the bushing and the terminal plate in Figure 4 separated.

본 고안에 따른 지상변압기의 단자판 연결구조는 도 4 및 도 5에 도시된 바 와 같이, 변압기(10)의 저압측 측벽에 부싱(20)이 장착되도록 되어 있고, 상기 부싱(20)의 외부 접속부(22)에 단자판(30)이 제1,2클램프부(34,36)를 매개로 연결되도록 되어 있다.As shown in FIGS. 4 and 5, the terminal plate connection structure of the ground transformer according to the present invention is configured such that the bushing 20 is mounted on the side wall of the low pressure side of the transformer 10, and an external connection part of the bushing 20 is provided. The terminal plate 30 is connected to the 22 via the first and second clamp portions 34 and 36.

상기 부싱(20)은 상기 제1,2클램프부(34,36)에 연결되는 외부 접속부(22)와 1차 케이블단자(12)와 접속되는 내부 접속부(24)를 구비하고 있다. 여기서, 외부 접속부(22)는 변압기(10)의 외부에 배치되고 원통형 구조로 되어 있다. 상기 내부 접속부(24)는 변압기(10)의 내부에 배치되고 원통형 구조이고, 원주면에 나사부가 형성되어 복수의 너트(16)를 매개로 1차 케이블단자(12)를 연결하도록 되어 있다. The bushing 20 has an external connection 22 connected to the first and second clamp parts 34 and 36 and an internal connection 24 connected to the primary cable terminal 12. Here, the external connection portion 22 is disposed outside the transformer 10 and has a cylindrical structure. The internal connection part 24 is disposed inside the transformer 10 and has a cylindrical structure, and a threaded part is formed on a circumferential surface to connect the primary cable terminal 12 via a plurality of nuts 16.

상기 단자판(30)은 도 5에 도시된 바와 같이, 2차 케이블단자(14)가 연결되는 몸체(32)와, 상기 몸체(32)의 선단에 연장되어 상기 부싱(20)의 외부 접속부(22)를 수용하여 연결하는 제1,2클램프부(34,36)로 이루어져 있다. 여기서, 상기 제2클램프부(36)는 상기 제1클램프부(34)에 대하여 분해 및 조립 가능하도록 되어 있다.As shown in FIG. 5, the terminal plate 30 has a body 32 to which the secondary cable terminals 14 are connected, and an external connection portion 22 of the bushing 20 extending to the tip of the body 32. ) Is composed of first and second clamp parts 34 and 36 for receiving and connecting. Here, the second clamp portion 36 is capable of disassembling and assembling with respect to the first clamp portion 34.

상기 몸체(32)에는 일정 간격을 두고 복수열로 단자연결홀(32a)이 형성되어 상기 2차 케이블단자(14)가 접속되도록 되어 있다. The body 32 has a plurality of terminal connection holes 32a formed at a predetermined interval so that the secondary cable terminals 14 are connected to each other.

상기 제1클램프부(34)는 상기 몸체(32)의 일측에 연장되어 있고, 내부에 상기 외부 접속부(22)가 수용되는 수용홈(34a)이 형성됨과 더불어, 상기 수용홈(34a)의 선단을 따라 플랜지부(34b)가 형성되어 있다.The first clamp portion 34 extends on one side of the body 32 and has an accommodating groove 34a accommodating the external connection portion 22 therein, and a tip end of the accommodating groove 34a. The flange part 34b is formed along this.

상기 제2클램프부(36)는 상기 제1클램프부(34)와 맞대어 결합하도록 되어 있 고, 상기 수용홈(34a)과 플랜지부(34b)에 각각 대응되는 수용홈(36a)과 플랜지부(36b)가 형성되어 있다.The second clamp portion 36 is coupled to the first clamp portion 34 so as to be coupled to each other, and includes a receiving groove 36a and a flange portion corresponding to the receiving groove 34a and the flange portion 34b, respectively. 36b) is formed.

상기 제1,2클램프부(34)는 상기 부싱(20)의 외부 접속부(22)를 수용홈(34a,36a)에 수용한 상태로 플랜지부(34b,36b)에 보울트(38)를 사용하여 체결하도록 되어 있다. 여기서, 보울트(38)는 진동에 의해 풀려지지 않도록 된 풀림방지형 보울트를 사용하는 것이 바람직하다. The first and second clamp portions 34 use the bolts 38 to the flange portions 34b and 36b in a state in which the external connecting portions 22 of the bushing 20 are accommodated in the receiving grooves 34a and 36a. It is intended to be fastened. Here, it is preferable that the bolt 38 uses an anti-loosening bolt which is not loosened by vibration.

한편, 상기 제1,2클램프부(34,36)의 2수용홈(34a,34b)의 내경은 상기 부싱(20)의 외부 접속부(22)의 외경과 동일하게 형성하는 것이 바람직하다. 또한, 상기 제1,2클램프부(34)의 2수용홈(34a,34b)의 단면적은 상기 부싱(20)의 외부 접속부(22)의 단면적 보다 같거나 약간 크게 형성되는 것이 바람직하다.On the other hand, the inner diameter of the two receiving grooves (34a, 34b) of the first and second clamp portion (34, 36) is preferably formed to be the same as the outer diameter of the outer connecting portion 22 of the bushing (20). In addition, it is preferable that the cross-sectional areas of the two accommodation grooves 34a and 34b of the first and second clamp portions 34 are equal to or slightly larger than the cross-sectional areas of the external connection portions 22 of the bushing 20.

본 고안에 따른 지상변압기의 단자판 분해 및 조립하는 과정을 도 5 및 도 6을 참조하여 설명한다.The process of disassembling and assembling the terminal plate of the ground transformer according to the present invention will be described with reference to FIGS. 5 and 6.

도 6에 도시된 바와 같이, 부싱(20)의 외부 접속부(22)를 수용한 상내로 연결된 단자판(30)의 제1클램프부(34)에서 제2클램프부(36)를 분리한다. 즉 제1,2클램프부(34,36)의 플랜지부(34b,36b)에서 보울트(38)를 풀면 제2클램프부(36)가 제1클램프부(34)에서 분리할 수 있게 된다. 그 후, 도 5에 도시된 바와 같이, 부싱(20)의 외부 접속부(22)를 제1클램프부(34)에서 쉽게 분리할 수 있다. As shown in FIG. 6, the second clamp portion 36 is separated from the first clamp portion 34 of the terminal plate 30 connected inwardly to accommodate the external connection portion 22 of the bushing 20. That is, when the bolt 38 is released from the flange portions 34b and 36b of the first and second clamp portions 34 and 36, the second clamp portion 36 may be separated from the first clamp portion 34. Thereafter, as shown in FIG. 5, the external connection 22 of the bushing 20 can be easily detached from the first clamp portion 34.

반면, 조립하는 과정은 부싱(20)의 외부 접속부(22)가 단자판(30)의 제1클램프부(34) 수용홈에 안착한 후, 상기 제1클램프부(34)에 제2클램프부(36)를 맞대고 보울트(38)를 죄게 된다. 이 때, 도 6에 도시된 바와 같이 부싱(20)의 외부 접속부(22)와 단자판(30)의 제1,2클램프부(34,36)가 연결되게 된다.On the other hand, in the assembling process, after the external connecting portion 22 of the bushing 20 is seated in the first clamp portion 34 receiving groove of the terminal plate 30, the second clamp portion 36 is attached to the first clamp portion 34. ), The bolt 38 is clamped. At this time, as shown in FIG. 6, the external connection part 22 of the bushing 20 and the first and second clamp parts 34 and 36 of the terminal plate 30 are connected.

한편, 최조의 조립시에는 제1,2클램프부(34,36)의 수용홈(34a,36a) 각각에 도전성 컴파운드를 도포한 상태로 상기 부싱(20)의 외부 접속부(22)를 연결하는 것이 바람직하다.On the other hand, at the time of assembly, it is preferable to connect the external connecting portion 22 of the bushing 20 with the conductive compound applied to each of the receiving grooves 34a and 36a of the first and second clamp portions 34 and 36. desirable.

이상에서 설명한 바와 같이, 본 고안은 바람직한 실시예를 기초로 설명하였으나 특정 실시예에 한정되는 것은 아니며, 해당분야 통상의 지식을 가진 자가 특허청구범위 내에서 기재된 범주내에서 변경할 수 있다.As described above, the present invention has been described based on the preferred embodiment, but is not limited to the specific embodiment, it can be changed within the scope described within the claims by those skilled in the art.

도 1은 종래기술에 따른 지상변압기의 단자판이 연결된 상태를 도시한 측면도,1 is a side view showing a state in which the terminal plate of the ground transformer according to the prior art is connected,

도 2는 도 1에서 부싱과 단자판을 분리하여 도시한 사시도, FIG. 2 is a perspective view of the bushing and the terminal plate separated from FIG. 1;

도 3은 종래기술에 따른 단자판 클램프부를 도시한 도면으로,3 is a view showing a terminal plate clamp according to the prior art,

(a)는 단자판이 부싱에 결합전 상태도,(a) is a state diagram before the terminal plate is coupled to the bushing,

(b)는 단자판이 부싱에 결합후 상태도,(b) is a state diagram after the terminal plate is coupled to the bushing,

도 4는 본 고안에 따른 지상변압기의 단자판이 연결된 상태를 도시한 측면도,Figure 4 is a side view showing a state in which the terminal plate of the ground transformer according to the present invention is connected,

도 5는 도 4에서 부싱과 단자판을 분리하여 도시한 사시도,FIG. 5 is a perspective view of the bushing and the terminal plate separated from FIG. 4;

도 6은 도 5에서 부싱과 단자판을 결합한 사시도이다.6 is a perspective view of the bushing and the terminal plate in FIG.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 변압기 12 : 1차 케이블단자10: transformer 12: primary cable terminal

14 : 2차 케이블단자 16 : 너트14: secondary cable terminal 16: nut

20 : 부싱 22 : 외부 접속부20 bushing 22 external connection

24 : 내부 접속부 30 : 단자판24: internal connection part 30: terminal board

32 : 몸체 34 : 제1클램프부32: body 34: first clamp portion

36 : 제2클램프부 38 : 보울트36: second clamp portion 38: bolt

Claims (4)

변압기의 일측에 부싱이 고정되고, 상기 부싱의 외부 접속부에 단자판이 연결되는 지상변압기의 단자판 연결구조에 있어서, In the terminal plate connection structure of the ground transformer, the bushing is fixed to one side of the transformer, the terminal plate is connected to the external connection portion of the bushing, 상기 단자판은 2차 케이블단자가 접속되는 단자연결홀이 형성된 몸체와, 상기 몸체와 일체를 이루도록 몸체의 한쪽 선단에서 연장되며 상기 부싱의 외부 접속부가 수용되는 제1클램프부와, 상기 제1클램프부와 별체로 구성되며 제1클램프부에 맞대어 연결되면서 탈부착가능한 제2클램프부를 구비하며, 상기 제1클램프부에 부싱의 외부 접속부가 수용된 상태에서 상기 제2클램프부를 제1클램프부에 가압 조립하여 상기 부싱의 외부 접속부와 연결하는 것을 특징으로 하는 지상변압기의 단자판 연결구조.The terminal plate includes a body having a terminal connection hole to which a secondary cable terminal is connected, a first clamp portion extending from one end of the body to be integral with the body, and receiving an external connection portion of the bushing, and the first clamp portion. And a second clamp part detachably attached to the first clamp part, the second clamp part being pressure-assembled to the first clamp part in a state where the external connection part of the bushing is accommodated in the first clamp part. Connection structure of the terminal board of the ground transformer, characterized in that it is connected to the external connection of the bushing. 제 1 항에 있어서,The method of claim 1, 상기 제1,2클램프부에는 각각 상기 부싱의 외부 접속부가 수용되는 수용홈이 각각 형성되고, 상기 외부 접속부의 외경이 상기 수용홈 각각에 절반씩 수용되는 것을 특징으로 하는 지상변압기의 단자판 연결구조.The first and second clamp portions are each formed with receiving grooves for receiving the external connection portion of the bushing, respectively, the outer diameter of the external transformer terminal plate connecting structure, characterized in that half received in each of the receiving groove. 제 1 항에 있어서,The method of claim 1, 상기 제1,2클램프부 각각에 플랜지부가 연장되고 상기 플랜지부에 보울트를 결합하도록 된 것을 특징으로 하는 지상변압기의 단자판 연결구조.And a flange portion extending to each of the first and second clamp portions to couple a bolt to the flange portion. 제 2 항에 있어서,The method of claim 2, 상기 제1,2클램프부의 수용홈 각각에 도전성 컴파운드를 도포한 상태로 상기 부싱의 외부 접속부를 연결하도록 된 것을 특징으로 하는 지상변압기의 단자판 연결구조.And connecting the external connection portion of the bushing with the conductive compound applied to each of the receiving grooves of the first and second clamp portions.
KR2020090010294U 2009-08-06 2009-08-06 Terminal Block Connection Structure of Ground Transformer KR200455482Y1 (en)

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Publication number Priority date Publication date Assignee Title
KR101600895B1 (en) 2014-09-04 2016-03-09 쌍용전기 주식회사 Bushing for Transformer
US10128068B2 (en) 2016-12-05 2018-11-13 Lsis Co., Ltd. Terminal assembly for vacuum contactor switch
KR102039142B1 (en) * 2019-06-07 2019-10-31 주식회사 프로텍타코리아 Low voltage bushing added distributing function and pole transformer having the same

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KR200487558Y1 (en) * 2017-04-12 2018-10-08 (주)에스엠텍 Bushing clamp for switch
KR101964032B1 (en) * 2017-09-22 2019-04-03 한국전력공사 Terminal apparatus for pad mounted transformer
KR102121286B1 (en) * 2018-10-15 2020-06-11 한국전력공사 Bushing connecting structure of transformer
KR102307656B1 (en) * 2020-06-15 2021-10-05 한국전력공사 Seperatable connector, rotation bushing, bypass line, automatic transfer switch, mounted stand, insulation cover for replacing transformer with uninterruptable power supply and method using the same

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KR200322057Y1 (en) * 2003-05-16 2003-08-06 한국전력공사 Terminal lug structure for underground stand cable

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
KR101600895B1 (en) 2014-09-04 2016-03-09 쌍용전기 주식회사 Bushing for Transformer
US10128068B2 (en) 2016-12-05 2018-11-13 Lsis Co., Ltd. Terminal assembly for vacuum contactor switch
KR102039142B1 (en) * 2019-06-07 2019-10-31 주식회사 프로텍타코리아 Low voltage bushing added distributing function and pole transformer having the same

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