KR100401595B1 - Outdoor terminal for high voltage power cable - Google Patents

Outdoor terminal for high voltage power cable Download PDF

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Publication number
KR100401595B1
KR100401595B1 KR10-2001-0076655A KR20010076655A KR100401595B1 KR 100401595 B1 KR100401595 B1 KR 100401595B1 KR 20010076655 A KR20010076655 A KR 20010076655A KR 100401595 B1 KR100401595 B1 KR 100401595B1
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KR
South Korea
Prior art keywords
high voltage
oil
cable
pipe
sealing material
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KR10-2001-0076655A
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Korean (ko)
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KR20030046196A (en
Inventor
신두성
민병관
최수걸
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엘지전선 주식회사
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Priority to KR10-2001-0076655A priority Critical patent/KR100401595B1/en
Publication of KR20030046196A publication Critical patent/KR20030046196A/en
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Publication of KR100401595B1 publication Critical patent/KR100401595B1/en

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    • 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
    • H02G15/02—Cable terminations
    • H02G15/06—Cable terminating boxes, frames or other structures

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  • Cable Accessories (AREA)
  • Gas Or Oil Filled Cable Accessories (AREA)

Abstract

본 발명은 케이블 도체와 도체 인출봉을 접속하고 상기 접속부를 애관으로 커버하고 상기 애관의 내부에 절연유가 충진되는 초고압 케이블용 기중종단 접속함의 유밀 구조에 관한 것으로, 실링판과 지지관으로 이루어지는 고무 재질의 실링재가 애관 금구와 하부 고정판 사이에 삽입 체결되어 상기 실링재의 탄성력에 의하여 애관 내부에 충진된 절연유의 누출을 방지하도록 구성되는 유밀 구조에 관한 것이다.The present invention relates to an oil-tight structure of an air-termination junction box for an ultra-high voltage cable connecting a cable conductor and a conductor withdrawing rod, covering the connection part with an annulus, and filled with insulating oil in the inside of the annulus, wherein the rubber material is formed of a sealing plate and a support tube. The sealing material of the invention relates to an oil-tight structure configured to be inserted and fastened between the tube and the lower fixing plate to prevent leakage of the insulating oil filled inside the tube by the elastic force of the sealing material.

Description

초고압 케이블용 기중종단 접속함{Outdoor terminal for high voltage power cable}Air terminal terminal for high voltage cable {Outdoor terminal for high voltage power cable}

본 발명은 케이블 도체와 도체 인출봉을 접속하고 상기 접속부를 애관으로 커버하고 상기 애관의 내부에 절연유가 충진되는 초고압 케이블용 기중종단 접속함에 있어서, 원반 형상의 실링판과 상기 실링판의 중심부에 형성된 지지관으로 이루어지는 고무 재질의 실링재가 애관 금구와 하부 고정판의 사이에 삽입 체결되는 구성으로 고무 재질인 실링재의 탄성력에 의하여 상기 애관 내부에 충진된 절연유의 누출을 방지하는 초고압 케이블용 기중종단 접속함의 유밀 구조에 관한 것이다.The present invention is connected to the cable conductor and the conductor withdrawal rod and cover the connecting portion with the pipe and the air termination for the ultra-high voltage cable in which the insulating oil is filled in the pipe, in the center of the disk-shaped sealing plate and the sealing plate Rubber sealing material made of support tube is inserted and fastened between the pipe fittings and the lower fixing plate, and the oil tightness of the terminal box for ultra-high voltage cable prevents the leakage of the insulating oil filled in the inside of the pipe by the elastic force of the sealing material made of rubber. It's about structure.

초고압 전력 케이블을 외부로 인출하여 가공선, 차단기, 변압기 등에 연결하는 기중종단 접속함은 케이블 도체와 도체 인출봉을 접속하고 상기한 접속부를 자기 또는 고분자 재질의 애관으로 커버하고 상기 접속부의 전기적 성능을 유지하도록 상기 애관의 내부에 절연유를 충진하는 구조를 이루며, 케이블 및 기중종단 접속함의 운전중에 상기 애관의 내부에 충진된 절연유가 누출되지 않도록 상기 애관에 유밀 구조를 형성해야 한다.The air termination box for drawing the ultra-high voltage power cable to the outside and connecting it to overhead wires, breakers, transformers, etc., connects the cable conductor and the conductor lead-out rod, covers the above connection part with a magnetic or polymer pipe, and maintains the electrical performance of the connection part. The insulating oil is filled in the inside of the pipe so as to form an oil-tight structure to prevent leakage of the insulating oil filled in the inside of the pipe during operation of the cable and the air terminal junction box.

종래의 기중종단 접속함은 도 1을 참조하면 애관(11)에 내재된 케이블(3)의 외경에 지지체(21)가 지지되고 상기 지지체(21)의 외경에 전계 완화콘(15)이 지지되고 상기 전계 완화콘(15)의 외경이 스틸 밴드(22)로 고정되어 애관(11)의 내부에 충진된 절연유(12)의 누출을 방지하는 유밀 구조가 형성되지만, 상기한 유밀 구조는 구성이 복잡하고 조립 작업이 곤란하다는 문제점이 있다.Referring to FIG. 1, in the conventional air termination junction box, the support 21 is supported on the outer diameter of the cable 3 embedded in the annulus 11, and the electric field relaxation cone 15 is supported on the outer diameter of the support 21. The outer diameter of the electric field relaxation cone 15 is fixed with a steel band 22 to form a hermetic structure for preventing leakage of the insulating oil 12 filled in the inner pipe 11, but the oil-tight structure is complicated in construction There is a problem that the assembly operation is difficult.

본 발명의 목적은 원반 형상의 실링판과 상기 실링판의 중심부에 형성된 지지관으로 이루어지는 고무 재질의 실링재가 애관 금구와 하부 고정판의 사이에 삽입 체결되는 구성으로 고무 재질인 실링재의 탄성력에 의하여 애관 내부에 충진된 절연유를 실링하는 초고압 케이블용 기중종단 접속함의 유밀 구조를 제공하는데 있다.An object of the present invention is a rubber sealing material consisting of a disk-shaped sealing plate and a support tube formed at the center of the sealing plate is inserted and fastened between the pipe fitting bracket and the lower fixing plate inside the love tube by the elastic force of the rubber sealing material. To provide a hermetic structure for a terminal termination junction box for an ultra high voltage cable for sealing the insulating oil filled in.

도 1은 종래의 기중종단 접속함의 구조도1 is a structural diagram of a conventional lifting terminal junction box

도 2는 본 발명의 기중종단 접속함의 구조도2 is a structural diagram of the air terminal junction box of the present invention

도 3은 본 발명의 유밀 구조의 상세도3 is a detailed view of the oil-tight structure of the present invention.

도 4는 본 발명의 실링재의 상세도4 is a detailed view of the sealing material of the present invention.

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

1 : 실링판 2 : 지지관1: sealing plate 2: support tube

3 : 케이블 4 : 애관 금구3: cable 4: love ring

5 : 하부 고정판 6 : 볼트(a, b)5: lower fixing plate 6: bolt (a, b)

10 : 실링재 11 : 애관10: sealing material 11: love

12 : 절연유 13 : 케이블 도체12: insulating oil 13: cable conductor

14 : 도체 인출봉 15 : 전계 완화콘14: conductor withdrawal rod 15: electric field relaxation cone

16 : 보호 동관 21 : 지지체16: protective copper tube 21: support

22 : 스틸 밴드22: steel band

본 발명의 초고압 케이블용 기중종단 접속함의 유밀 구조는 원반 형상의 실링판(1)과 상기 실링판(1)의 중심부에 형성된 지지관(2)으로 이루어지는 고무 재질의 실링재(10)가 애관 금구(4)와 하부 고정판(5)의 사이에 삽입 체결되어 형성되는 특징이 있다.The oil-tight structure of the air termination terminal for the ultra-high voltage cable of the present invention is a sealing material 10 made of a rubber material consisting of a disk-shaped sealing plate 1 and a support tube 2 formed at the center of the sealing plate 1. 4) and the lower fixing plate 5 is inserted and fastened is characterized in that it is formed.

도면과 실시예를 참조하여 본 발명을 상세하게 설명한다.The present invention will be described in detail with reference to the drawings and examples.

도 1은 종래의 초고압 케이블용 기중종단 접속함의 구조를 도시한 것이고 도 2는 본 발명에 의한 초고압 케이블용 기중종단 접속함의 구조를 도시한 것이고 도 3은 본 발명에 의한 기중종단 접속함의 유밀 구조를 상세하게 도시한 것이고 도 4는 본 발명에 의한 실링재를 상세하게 도시한 것이다.Figure 1 shows the structure of a conventional terminal terminal for ultra-high voltage cable, Figure 2 shows the structure of the terminal terminal box for ultra-high voltage cable according to the present invention and Figure 3 shows the oil-tight structure of the terminal terminal box according to the present invention It shows in detail and FIG. 4 shows the sealing material by this invention in detail.

초고압 케이블용 기중종단 접속함은 케이블 도체(13)와 도체 인출봉(14)이 접속되고 상기한 접속부가 자기 또는 고분자 재질의 애관(11)으로 커버되고 상기 애관(11)에 내재된 케이블(3)의 외경에 전계 완화콘(15)이 형성되고 상기 접속부의 전기적 성능을 유지하도록 상기 애관(11)의 내부에 절연유(12)가 충진되고 애관 금구(4)와 하부 고정판(5)이 볼트(6a)로 결합되고 상기 하부 고정판(5)과 보호 동관(16)이 볼트(6b)로 결합되는 구조를 이룬다. 기중종단 접속함에서 요구되는 전기적 성능을 충족하기 위하여 애관(11) 내부에 충진된 절연유(12)의 사용 유압은 1.5 ∼ 2 kgf/㎠ 을 유지해야 하므로 절연유(12)가 애관 금구(4)와 하부 고정판(5) 사이에서 누출되는 것을 방지하도록 상기한 위치에 유밀 구조를 형성한다.The cable termination box for the ultra-high voltage cable has a cable (13) and a conductor leading rod (14) connected to each other, and the connection part is covered with a magnetic or polymeric pipe 11 and a cable (3) embedded in the pipe 11 (3). In order to maintain the electrical performance of the connection portion, an electric field alleviating cone 15 is formed at the outer diameter of the) and the insulating oil 12 is filled in the inside of the pipe 11, and the pipe fitting 4 and the lower fixing plate 5 are bolted ( 6a) and the lower fixing plate 5 and the protective copper tube 16 form a structure in which the bolt (6b). In order to meet the electrical performance required in the air terminal junction box, the oil pressure of the insulating oil 12 filled in the pipe 11 must be maintained at 1.5 to 2 kgf / ㎠, so the insulating oil 12 is connected to the pipe fitting 4 and The oil tight structure is formed at the above position to prevent leakage between the lower fixing plates 5.

유밀 구조를 형성하는 실링재(10)는 상기한 사용 유압 1.5 ∼ 2 kgf/㎠의 절연유(12)가 애관(11)으로부터 누출되는 것을 방지하도록 탄성이 우수한 고무 재질로 형성되는데, 고무중에서도 탄성력이 매우 우수할 뿐만 아니라 내유성, 내화학성 등이 탁월한 실리콘 고무 재질로 형성되는 것이 바람직하다.The sealing material 10 forming the oil-tight structure is formed of a rubber material having excellent elasticity to prevent the above-mentioned hydraulic oil 12 of the used hydraulic pressure 1.5 to 2 kgf / cm 2 from leaking out from the love pipe 11, and the elastic force is very high among the rubber. It is preferable to be formed of a silicone rubber material that is excellent in oil resistance, chemical resistance and the like.

상기 실링재(10)는 애관(11)의 내경보다 약간 큰 직경을 지닌 원반 형상의 실링판(1)과 상기 실링판(1)의 중심부에 형성되는 지지관(2)으로 구성되며, 상기 지지관(2)에 케이블(3)이 삽입되도록 상기 지지관(2)의 내경은 상기 케이블(3)의 직경보다 약간 크게 형성된다. 따라서 상기 실링재(10)와 케이블(3)의 사이에는 1.5 ∼ 2 kgf/㎠ 인 절연유(12)의 사용 유압보다 큰 계면 압력이 작용하게 된다. 그러므로 실링재를 구성하는 실링판(1)과 지지관(2)은 상기한 절연유(12)의 계면 유압을 지탱하기에 충분한 두께로 형성되어야 한다.The sealing material 10 is composed of a disk-shaped sealing plate (1) having a diameter slightly larger than the inner diameter of the love pipe (11) and a support tube (2) formed in the center of the sealing plate (1), the support tube The inner diameter of the support tube 2 is formed slightly larger than the diameter of the cable 3 so that the cable 3 is inserted into (2). Therefore, an interface pressure greater than the hydraulic pressure of the insulating oil 12 which is 1.5-2 kgf / cm <2> acts between the said sealing material 10 and the cable 3. Therefore, the sealing plate 1 and the support pipe 2 constituting the sealing material should be formed to a thickness sufficient to support the interfacial hydraulic pressure of the insulating oil 12 described above.

상기 실링판(1)과 지지관(2)으로 구성된 실링재(10)의 지지관(2)이 애관(11)에 내재된 케이블(3)의 외경에 지지되고 상기 지지관(2)의 외경에 형성된 실링판(1)이 애관 금구(4)와 하부 고정판(5)의 사이에 위치되고 상기 애관 금구(4)와 하부 고정판(5)이 볼트(6a)로 결합되어 상기 실링판(1)이 애관 금구(4)와 하부 고정판(5)의 사이에 고정되므로 실링재(10)만으로 이루어진 유밀 구조가 애관(11)의 내부에 형성된다.The support tube 2 of the sealing material 10 composed of the sealing plate 1 and the support tube 2 is supported by the outer diameter of the cable 3 embedded in the annular pipe 11 and is supported by the outer diameter of the support tube 2. The formed sealing plate 1 is positioned between the abutment bracket 4 and the lower fixing plate 5, and the abutment bracket 4 and the lower fixing plate 5 are coupled by bolts 6a to seal the plate 1. Since it is fixed between the pipe fittings 4 and the lower fixing plate 5, the oil-tight structure consisting only of the sealing material 10 is formed in the inside of the pipe 11.

실링재(10)의 지지관(2)을 확관하고 확관된 지지관(2)에 케이블(3)을 삽입한다. 상기 지지관(2)에 삽입된 케이블(3)의 외경에 전계 완화콘(15)을 형성하고 케이블 도체(13)와 도체 인출봉(14)을 접속한다. 상기한 접속부를 애관(11)과 초고압 실드로 커버하고 상기 애관(11)의 내부에 일정한 분량의 절연유(12)를 충진한다. 상기 실링재(10)의 실링판(1)을 애관 금구(4)와 하부 고정판(5)의 사이에 위치시키고 상기 애관 금구(4)와 하부 고정판(5)을 볼트(6a)로 결합하므로서 상기 애관 금구(4)와 하부 고정판(5) 사이에 상기 실링재(10)의 실링판(1)을 고정한다. 이어 상기 하부 고정판(5)과 보호 동관(16)을 볼트(6a)로 결합하여 초고압 케이블용 기중종단 접속함을 형성한다. 상기 기중종단 접속함의 유밀 구조는 실링판(1)과 지지관(2)으로 이루어진 실링재(10)만으로 형성되므로 구조가 간단하고 조립 작업이 용이하다.The support tube 2 of the sealing material 10 is expanded, and the cable 3 is inserted into the expanded support tube 2. The electric field relaxation cone 15 is formed in the outer diameter of the cable 3 inserted into the support tube 2, and the cable conductor 13 and the conductor drawing rod 14 are connected. The connection part is covered with a duct 11 and an ultra-high pressure shield, and a predetermined amount of insulating oil 12 is filled in the duct 11. The sealing pipe 1 of the sealing material 10 is located between the pipe fitting bracket 4 and the lower fixing plate 5 and the pipe fitting bracket 4 and the lower fixing plate 5 are joined by bolts 6a. The sealing plate 1 of the sealing material 10 is fixed between the bracket 4 and the lower fixing plate 5. Subsequently, the lower fixing plate 5 and the protective copper tube 16 are combined with bolts 6a to form a terminal termination box for an ultra high voltage cable. The oil-tight structure of the crane terminal junction box is formed of only the sealing material 10 consisting of the sealing plate 1 and the support tube 2, so that the structure is simple and easy to assemble.

본 발명에 의한 기중종단 접속함은 원반 형상의 실링판과 상기 실링판의 중심부에 형성된 지지관으로 이루어지는 고무 재질의 실링재가 애관 금구와 하부 고정판의 사이에 삽입 체결되는 구성으로 고무 재질인 실링재의 탄성력에 의하여 애관 내부에 충진된 절연유의 누출을 방지하므로 유밀 구조의 구성이 간단하고 조립이 용이해지는 효과가 있다.The lifting terminal box according to the present invention is a rubber sealing material consisting of a disk-shaped sealing plate and a support tube formed at the center of the sealing plate is inserted and fastened between the tube and the lower fixing plate elasticity of the rubber sealing material. By preventing the leakage of the insulating oil filled in the pipe by the structure of the oil-tight structure is simple and there is an effect that the assembly becomes easy.

Claims (1)

케이블(3)과 도체 인출봉(14)을 접속하고 상기 접속부를 애관(11)으로 커버하고 상기 접속부의 전기적 성능을 유지하도록 상기 애관(11)의 내부에 절연유(12)가 충진된 초고압 케이블용 기중종단 접속함에 있어서,For the ultra-high voltage cable in which the insulating oil 12 is filled in the inside of the pipe 11 to connect the cable 3 and the conductor drawing rod 14 and cover the connection part with the pipe 11 and maintain the electrical performance of the connection part. In the terminal termination box, 원반 형상의 실링판(1)과 상기 실링판(1)의 중심부에 형성된 지지관(2)으로 이루어지는 고무 재질의 실링재(10)가 애관 금구(4)와 하부 고정판(5)의 사이에 삽입 체결되어 형성되는 것을 특징으로 하는 초고압 케이블용 기중종단 접속함.A rubber sealing material 10 composed of a disk-shaped sealing plate 1 and a support tube 2 formed at the center of the sealing plate 1 is inserted and fastened between the tube-like bracket 4 and the lower fixing plate 5. Air termination terminal for ultra-high voltage cable, characterized in that formed.
KR10-2001-0076655A 2001-12-05 2001-12-05 Outdoor terminal for high voltage power cable KR100401595B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101557988B1 (en) 2014-09-11 2015-10-12 대한전선 주식회사 Cable end box air suitable for cryogenic environment
KR20190055480A (en) 2017-11-15 2019-05-23 대한전선 주식회사 Termination connection box of cable

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100948456B1 (en) * 2008-01-23 2010-03-17 엘에스전선 주식회사 Outdoor Termination Filled Two Type of Oil with Different Viscosity

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04178106A (en) * 1990-11-09 1992-06-25 Showa Electric Wire & Cable Co Ltd Cable terminal
JPH0518233U (en) * 1991-08-19 1993-03-05 古河電気工業株式会社 Stress cone compression device
JPH0847157A (en) * 1994-08-04 1996-02-16 Furukawa Electric Co Ltd:The Hermetically sealed structure of power cable connecting portion
JPH1172472A (en) * 1997-07-03 1999-03-16 Robert Bosch Gmbh Apparatus for sealing guide part for piercing cable for connection cable of gas measuring sensor
KR20000018751A (en) * 1998-09-04 2000-04-06 권문구 Forbidding tool, which is provided interior, oil thrower corn having large number of holes for cable ending part connection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04178106A (en) * 1990-11-09 1992-06-25 Showa Electric Wire & Cable Co Ltd Cable terminal
JPH0518233U (en) * 1991-08-19 1993-03-05 古河電気工業株式会社 Stress cone compression device
JPH0847157A (en) * 1994-08-04 1996-02-16 Furukawa Electric Co Ltd:The Hermetically sealed structure of power cable connecting portion
JPH1172472A (en) * 1997-07-03 1999-03-16 Robert Bosch Gmbh Apparatus for sealing guide part for piercing cable for connection cable of gas measuring sensor
KR20000018751A (en) * 1998-09-04 2000-04-06 권문구 Forbidding tool, which is provided interior, oil thrower corn having large number of holes for cable ending part connection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101557988B1 (en) 2014-09-11 2015-10-12 대한전선 주식회사 Cable end box air suitable for cryogenic environment
KR20190055480A (en) 2017-11-15 2019-05-23 대한전선 주식회사 Termination connection box of cable

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