KR100291665B1 - Ultra high voltage cable connection - Google Patents
Ultra high voltage cable connection Download PDFInfo
- Publication number
- KR100291665B1 KR100291665B1 KR1019980063653A KR19980063653A KR100291665B1 KR 100291665 B1 KR100291665 B1 KR 100291665B1 KR 1019980063653 A KR1019980063653 A KR 1019980063653A KR 19980063653 A KR19980063653 A KR 19980063653A KR 100291665 B1 KR100291665 B1 KR 100291665B1
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- Prior art keywords
- high voltage
- ultra
- rubber
- rubber balloon
- voltage cable
- Prior art date
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Classifications
-
- 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
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/1806—Heat shrinkable sleeves
- H02G15/1813—Wraparound or slotted sleeves
-
- 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
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/196—Cable junctions protected by sleeves, e.g. for communication cable having lapped insulation
-
- 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
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/24—Cable junctions
Landscapes
- Cable Accessories (AREA)
Abstract
본 발명은 초고압 케이블 접속장치에 관한 것으로, 특히 절연유나 절연가스로 채워진 절연고무 벌룬(ballon)을 주요 절연부품으로 이용하여 현장에서 시공을 편리하게 하고 계면절연 성능을 향상시킨 초고압 케이블 접속장치에 관한 것으로, 초고압 케이블을 접속시키기 위한 장치에 있어서,The present invention relates to an ultra-high voltage cable connection device, and more particularly, to an ultra-high voltage cable connection device that facilitates construction in the field and improves interface insulation performance by using an insulating rubber balloon filled with insulating oil or an insulating gas as a main insulating part. In the device for connecting the ultra-high voltage cable,
초고압 케이블(12A,12B)의 양단에 노출된 도전체를 압착하여 연결하는 도체슬리브(3)와;A conductor sleeve 3 for crimping and connecting the conductors exposed at both ends of the ultra-high voltage cables 12A and 12B;
상기 도체슬리브(3)에 고정금구(4)로 고정 설치되며 경화표면 처리된 고압전극(13)과;A high pressure electrode 13 fixed to the conductor sleeve 3 and fixed to the conductor sleeve 3 by hardening;
상기 고압전극(13)을 감싸안고 내부에 절연유 또는 절연가스 중 택일된 것이 소정의 압력으로 충만된 고무벌룬(14)과;A rubber balloon 14 which surrounds the high voltage electrode 13 and is filled with a predetermined pressure of an insulating oil or an insulating gas therein;
상기 고무벌룬(14)을 감싸안고 내주면에 반도전 고무판(17)이 부착된 중앙동관(5)과;A central copper tube 5 having the semi-conductive rubber plate 17 attached to the inner circumferential surface of the rubber balloon 14;
상기 중앙동관(5)의 양단에 압입금구(7)에 의해 조립되어 상기 고무벌룬(14)의 위치를 케이블(12A,12B)에 고정하기 위한 반도전고무(15)를 포함한 것을 특징으로 하는 초고압 케이블 접속장치.Ultra high pressure, characterized in that it comprises a semi-conducting rubber (15) for assembling by the press-fitting bracket (7) at both ends of the central copper tube (5) to fix the position of the rubber balloon (14) to the cables (12A, 12B) Cable connection.
Description
본 발명은 초고압 케이블 접속장치에 관한 것으로, 특히 절연유나 절연가스로 채워진 절연고무 벌룬(ballon)을 주요 절연부품으로 이용하여 현장에서 시공을 편리하게 하고 계면절연 성능을 향상시킨 초고압 케이블 접속장치에 관한 것이다.The present invention relates to an ultra-high voltage cable connection device, and more particularly, to an ultra-high voltage cable connection device that facilitates construction in the field and improves interface insulation performance by using an insulating rubber balloon filled with insulating oil or an insulating gas as a main insulating part. will be.
일반적으로 고체 절연물 이종계면이 존재할 경우에는 계면압이 균일하면서 2.5㎏/㎠ 이상일 경우 전기적 성능이 안전하게 된다.In general, when a solid insulator heterogeneous interface is present, when the interfacial pressure is uniform and more than 2.5㎏ / ㎠, electrical performance is safe.
종래의 기술은 절연부품간 계면압 확보 및 밀착성 향상을 위해 스프링 압축장치를 이용하거나, 탄성이 우수한 고무 슬리브를 이용하였다.The prior art uses a spring compression device or a rubber sleeve having excellent elasticity to secure interfacial pressure and improve adhesion between insulating parts.
전자는 계면에서 계면압이 불균일하고, 후자는 계면에서 일정 계면압 확보에 어려움이 존재한다.The former has a nonuniform interfacial pressure at the interface, and the latter has a difficulty in securing a constant interfacial pressure at the interface.
도 1은 종래 초고압 케이블 직선 접속함 구조의 반단면도로서, 양측 케이블(12A,12B)의 전도부를 고정금구(4)로 고정된 도체슬리브(3)를 개재하여 고압전극(2)으로 연결하고, 이 고압전극(2)을 밀대(8)를 이용하여 스트레스 릴리프콘(stress-relief cone)(6)으로 지지하고, 상기 밀대(8)를 스프링 완충장치(11)로 완충시켜 계면압을 유지하고, 밀대(8)를 포함한 고압전극(2)을 중앙동관(5) 사이에 개재된 에폭시 유닛(1)으로 감싸도록 구성되어 있다.1 is a half sectional view of a conventional ultra high voltage cable straight junction box structure, connecting the conductive parts of both cables 12A and 12B to the high voltage electrode 2 through the conductor sleeve 3 fixed with the fixing bracket 4; The high-pressure electrode 2 is supported by a stress-relief cone 6 using a push rod 8, and the push rod 8 is buffered by a spring buffer 11 to maintain interfacial pressure. , The high voltage electrode 2 including the push rod 8 is configured to surround the epoxy unit 1 interposed between the central copper tubes 5.
이러한 스프링 완충장치(11)를 이용한 종래의 초고압 케이블 접속구조에서는 일정한 계면압을 유지하기 어렵고, 계면압이 불균일하여 전기적 신뢰성이 떨어지는 문제점을 가지고 있었다.In the conventional ultra-high voltage cable connection structure using the spring shock absorber 11, it is difficult to maintain a constant interface pressure, the interface pressure is nonuniform, and there is a problem that the electrical reliability is inferior.
본 발명은 상기와 같은 사정을 감안하여 창안된 것으로, 현장에서 조립하여 조립하고 시공하기가 간편하며 이종 절연 물질간 계면면적 감소와 계면밀착성 향상을 구현하여 계면절연성능을 높일 수 있도록 한 초고압 케이블 접속장치를 제공함에 그 목적이 있다.The present invention was devised in view of the above circumstances, and it is easy to assemble and assemble in the field, and it is easy to assemble and install an ultra-high voltage cable connection to improve interfacial insulation performance by reducing interfacial area and improving interfacial adhesion between dissimilar insulating materials. The object is to provide a device.
상기의 목적을 달성하기 위한 본 발명의 구체적인 수단은,Specific means of the present invention for achieving the above object,
초고압 케이블을 접속시키기 위한 장치에 있어서,In the apparatus for connecting an ultra-high voltage cable,
초고압 케이블(12A,12B)의 양단에 노출된 도전체를 압착하여 연결하는 도체슬리브(3)와;A conductor sleeve 3 for crimping and connecting the conductors exposed at both ends of the ultra-high voltage cables 12A and 12B;
상기 도체슬리브(3)에 고정금구(4)로 고정 설치되며 경화표면 처리된 고압전극(13)과;A high pressure electrode 13 fixed to the conductor sleeve 3 and fixed to the conductor sleeve 3 by hardening;
상기 고압전극(13)을 감싸안고 내부에 절연유 또는 절연가스 중 택일된 것이 소정의 압력으로 충만된 고무벌룬(14)과;A rubber balloon 14 which surrounds the high voltage electrode 13 and is filled with a predetermined pressure of an insulating oil or an insulating gas therein;
상기 고무벌룬(14)을 감싸안고 내주면에 반도전 고무판(17)이 부착된 동관(5)과;A copper tube (5) having a semiconductive rubber plate (17) attached to an inner circumferential surface of the rubber balloon (14);
상기 동관(5)의 양단에 압입금구(7)에 의해 조립되어 상기 고무벌룬(14)의 위치를 케이블(12A,12B)에 고정하기 위한 반도전고무(15)를 포함한 것을 특징으로 한다.Both ends of the copper tube (5) is assembled by a press-fitting bracket (7) is characterized in that it comprises a semiconducting rubber (15) for fixing the position of the rubber balloon 14 to the cables (12A, 12B).
도 1은 종래 초고압 케이블 벌룬형 직선접속함의 반단면된 정면도이고,1 is a half sectional front view of a conventional high voltage cable balloon-type straight junction box,
도 2는 본 발명의 실시예에 의한 초고압 케이블 벌룬형 직선접속함의 반단면된 정면도이다.2 is a half sectional front view of an ultra-high voltage cable balloon-type straight junction box according to an embodiment of the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
12A,12B : 케이블 3 : 도체슬리브12A, 12B: Cable 3: Conductor sleeve
4 : 고정금구 5 : 중앙동관4: Fixing tool 5: Central Dongguan
7 : 압입금구 13 : 고압전극7: press-fitting tool 13: high voltage electrode
14 : 고무벌룬 15 : 반도전고무14: rubber balloon 15: bando all rubber
이하, 첨부된 도면을 참조하여 본 발명의 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;
도 2는 본 발명의 실시예에 의한 초고압 케이블 벌룬형 직선접속함의 반단면된 정면도이다.2 is a half sectional front view of an ultra-high voltage cable balloon-type straight junction box according to an embodiment of the present invention.
도시된 바와 같이 초고압 케이블(12A,12B)의 양단에 노출된 도전체를 압착하기 위한 도체슬리브(3)가 연결되어 있고, 상기 도체슬리브(3)에는 고정금구(4)를 통하여 도전체로 경화표면 처리된 고압전극(13)이 설치되어 있다.As shown, a conductor sleeve 3 for crimping the conductor exposed to both ends of the ultra-high voltage cables 12A and 12B is connected, and the conductor sleeve 3 is hardened to the conductor through a fixing bracket 4. The treated high voltage electrode 13 is provided.
도면부호 14는 고무벌룬(rubber balloon)으로, 상기 고압전극(13)을 감싸고 내부에 절연가스가 소정의 압력으로 충만되어 있다.Reference numeral 14 denotes a rubber balloon, which surrounds the high voltage electrode 13 and is filled with an insulating gas at a predetermined pressure therein.
상기 고무벌룬(14)내에는 절연가스에 대체하여 절연유를 충만시켜도 좋다.The rubber balloon 14 may be filled with insulating oil instead of insulating gas.
상기 고무벌룬(14)의 외주면에는 고무벌룬(14)을 감싸안고 내주면에 반도전 고무판(17)이 부착된 중앙동관(5)이 양측의 보호관(10)으로 지지 고정설치되어 있다.On the outer circumferential surface of the rubber balloon 14 is wrapped around the rubber balloon 14, the central copper tube (5) having a semiconductive rubber plate (17) attached to the inner circumferential surface is supported and fixed to the protective tube (10) on both sides.
상기 중앙동관(5)의 양단에는 압입금구(7)에 의해 조립되어 상기 고무벌룬(14)의 위치를 케이블(12A,12B)에 고정하기 위한 반도전고무(15)가 설치되어 있다.Semiconducting rubbers 15 are assembled at both ends of the central copper tube 5 to assemble the rubber balloon 14 to fix the positions of the rubber balloons 14 to the cables 12A and 12B.
이와 같이 구성된 본 고안은 케이블(12A,12B) 반도전층 끝단에 반도전고무(15)와 고무벌룬(14)을 사용하므로써 전계집중을 완화할 수 있다.The present invention configured as described above can mitigate electric field concentration by using the semiconducting rubber 15 and the rubber balloon 14 at the ends of the semiconducting layers of the cables 12A and 12B.
또한 고무벌룬(14)내에 절연성은이 우수한 가스 혹은 오일을 채워넣어서 절연내력의 확보가 가능하다.In addition, the rubber balloon 14 can be filled with a gas or oil having excellent insulation property to ensure insulation strength.
그리고 일반적인 이종 고체 절연물간 계면접촉은 절연내력 확보를 위하여 2.5㎏/㎠ 이상의 계면압을 필요로 하지만 본 발명은 고무벌룬(14)내에 기체(절연가스)나 액체(절연유)의 압력을 조절함으로써 일정 계면압을 확보하기 때문에 종래의 부수적인 장치 즉, 완충장치 등이 불필요하여 직선접속함의 구조가 간단해진다.In general, the interfacial contact between heterogeneous solid insulators requires an interfacial pressure of 2.5 kg / cm 2 or more in order to secure dielectric strength. However, the present invention provides a constant by adjusting the pressure of gas (insulating gas) or liquid (insulating oil) in the rubber balloon 14. Since the interfacial pressure is ensured, a conventional additional device, that is, a shock absorber or the like, is unnecessary, thereby simplifying the structure of the straight junction box.
상술한 바와 같이 본 발명에 의하면 초고압 케이블의 접속시 반도전고무와 고무벌룬을 이용함으로써 전계집중의 완화가 가능하고 더욱이 고무벌룬내에 절연성능을 부여하여 절연내력을 확보할 수 있고, 구조가 간단하여 현장에서 시공이 간편한 이점을 갖는다.As described above, according to the present invention, when the ultra-high voltage cable is connected, the semiconducting rubber and the rubber balloon can be used to alleviate the electric field concentration, and the insulation performance can be secured by providing the insulation performance in the rubber balloon, and the structure is simple. It has the advantage of easy construction in the field.
Claims (2)
Priority Applications (1)
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KR1019980063653A KR100291665B1 (en) | 1998-12-31 | 1998-12-31 | Ultra high voltage cable connection |
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KR1019980063653A KR100291665B1 (en) | 1998-12-31 | 1998-12-31 | Ultra high voltage cable connection |
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KR100291665B1 true KR100291665B1 (en) | 2001-07-12 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101032400B1 (en) | 2009-12-22 | 2011-05-03 | 대한전선 주식회사 | Device for connecting the high voltage cable and joint box having the same |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108933003B (en) * | 2018-07-19 | 2024-02-27 | 河北环亚线缆有限公司 | Ultrahigh-voltage insulating gas pipeline cable |
KR102587412B1 (en) * | 2018-08-31 | 2023-10-12 | 한국전력공사 | Method and device for fault recovery of power facility |
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1998
- 1998-12-31 KR KR1019980063653A patent/KR100291665B1/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101032400B1 (en) | 2009-12-22 | 2011-05-03 | 대한전선 주식회사 | Device for connecting the high voltage cable and joint box having the same |
WO2011078438A1 (en) * | 2009-12-22 | 2011-06-30 | 대한전선 주식회사 | Connection device of super high voltage cables and connection box having same |
US8512077B2 (en) | 2009-12-22 | 2013-08-20 | Taihan Electric Wire Co., Ltd. | Joint box for connecting high voltage cables |
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KR20000046925A (en) | 2000-07-25 |
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