KR20040084292A - termination structure of super conducting cable - Google Patents
termination structure of super conducting cable Download PDFInfo
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- KR20040084292A KR20040084292A KR1020030019262A KR20030019262A KR20040084292A KR 20040084292 A KR20040084292 A KR 20040084292A KR 1020030019262 A KR1020030019262 A KR 1020030019262A KR 20030019262 A KR20030019262 A KR 20030019262A KR 20040084292 A KR20040084292 A KR 20040084292A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/02—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by their form
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/14—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by the disposition of thermal insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/16—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by cooling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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- Spectroscopy & Molecular Physics (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Gas Or Oil Filled Cable Accessories (AREA)
Abstract
Description
본 발명은 초전도 케이블용 단말구조에 관한 것으로, 보다 상세하게는 초전도 케이블용 단말의 내부에서 금속 도체봉과 매입전극 및 전열재질을 일체로 형성하여 전류리드부의 전계를 완화시키고, 기밀을 유지할 수 있는 초전도 케이블용 단말구조에 관한 것이다.The present invention relates to a terminal structure for a superconducting cable, and more particularly, to a superconductor capable of alleviating the electric field of the current lead part by forming a metal conductor rod, an embedded electrode, and a heat transfer material integrally inside the terminal for the superconducting cable. It relates to a terminal structure for a cable.
일반적으로, 초전도 케이블용 단말(termination)은 일반 가공선과 초전도 케이블(super conducting cable)을 연결하는 시스템으로써, 상온/액체 질소 온도로의 전기적 ·기계적 ·열적 문제를 해결해야 하는 시스템이다.In general, a termination for a superconducting cable is a system for connecting a general overhead line and a super conducting cable, and is a system for solving electrical, mechanical, and thermal problems at room temperature / liquid nitrogen temperature.
도 1에 도시된 바와 같이, 종래의 초전도 케이블용 단말(10)은 하부 내부에 형성되는 냉매통(22)과, 극저온 기기의 도체로부터 상온부(30)로 전기적 도통을 얻는 전류리드부(current lead unit,40)와, 냉매통(22)의 외측을 덮는 진공용기(24)와, 진공용기(24)의 상부로 돌출하여 접속되는 애자(insulator,32)를 구비한다.As shown in FIG. 1, the conventional superconducting cable terminal 10 includes a refrigerant cylinder 22 formed inside the lower portion, and a current lead portion for obtaining electrical conduction from the conductor of the cryogenic device to the room temperature portion 30. and a lead unit 40, a vacuum vessel 24 covering the outside of the coolant vessel 22, and an insulator 32 projecting to the upper portion of the vacuum vessel 24 to be connected.
극저온 기기로부터 도입된 초전도 도체에는 거의 직각 방향으로 전류리드부(40)가 접속되어 있다.The current lead portion 40 is connected to the superconducting conductor introduced from the cryogenic device in a substantially perpendicular direction.
상기 전류리드부(40)는 중심에 도체를 가지고, 그 주위에 에틸렌프로필렌 고무 등의 고체 절연을 피복한 것으로, 진공용기(24)와 애자(32)와의 접합면을 관통하여 애자(32) 내에 수납되어 있다.The current lead portion 40 has a conductor at the center thereof, and is coated with a solid insulation such as ethylene propylene rubber around the core, and penetrates the joint surface between the vacuum vessel 24 and the insulator 32 to form the insulator 32. It is stored.
상기 애자(32)의 내부에는 6불화황(SF6) 등의 절연유(34)가 충전되어 있다.The insulator 32 is filled with insulating oil 34 such as sulfur hexafluoride (SF 6 ).
상기 냉매통(22) 내에는 공급관(27)으로부터 보급되는 액체 질소(23)가 축적됨과 동시에, 상부는 질소가스를 저장하는 상부실드(36)로 이루어져 있다.In the refrigerant container 22, the liquid nitrogen 23 supplied from the supply pipe 27 is accumulated and the upper portion is formed of an upper shield 36 that stores nitrogen gas.
상기 질소가스의 배출은 가스 배출구(28)로부터 행할 수 있다.The nitrogen gas can be discharged from the gas outlet 28.
따라서, 상기한 단말(10)의 구조는 극저온 기기에서 순서대로 액체 질소(23)에 침지된 극저온부(20), 질소 가스 저장조(26), 애자(32) 내의 상온부(30) 및 애자(32)까지 연통되게 된다.Therefore, the structure of the terminal 10 is the cryogenic portion 20, nitrogen gas storage tank 26, the room temperature portion 30 and the insulator (32) immersed in the liquid nitrogen 23 in order in the cryogenic equipment Up to 32).
그러나, 상기 상온부에서 극저온부로 전류를 흐르게 하는 도체인 전류리드부는 상온부의 일반 단말부의 구조 중 절연유와 진공탱크간을 긴밀하게 유지해야 하며, 일반단말부에서 전기적으로 전계가 집중되는 문제점이 있었다.However, the current lead portion, which is a conductor that flows current from the room temperature portion to the cryogenic portion, must closely maintain the insulation oil and the vacuum tank in the structure of the general terminal portion of the room temperature portion, and there is a problem in that an electric field is concentrated at the general terminal portion.
그리고, 상기 전류리드부 내부의 공간 밀봉이 완전하지 않아서 공간과 상부실드와의 연통이 생길 가능성이 있으며, 전류리드부 공간 내의 가스가 액화하여 부압으로 되어 서서히 상부실드의 공기가 전류리드부 내부로 빨려 들어가면서 공기가 액화된 후, 상온으로 복귀할 때에 대단히 큰 압력으로 되기 때문에 전류리드부를 기계적으로 파손시켜버리는 문제점도 있었다.In addition, since the space sealing inside the current lead portion is not complete, there is a possibility of communication between the space and the upper shield, and gas in the current lead portion space becomes liquefied and becomes negative pressure, so that air in the upper shield gradually enters the current lead portion. Since the air is liquefied while being sucked in, the pressure becomes very large when returning to room temperature, which causes mechanical damage to the current lead portion.
본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로, 초전도 케이블용 단말의 금속 도체봉과 매입전극 및 절연재질을 일체로 구성함으로써 전류리드부의 전계가 집중되는 것을 방지하고, 상온부의 절연유와 진공용기간의 기밀을 유지하여 큰 압력 변화를 방지하기 위한 초전도 케이블용 단말구조를 제공함에 그 목적이 있다.The present invention has been made to solve the above problems, by integrally configuring the metal conductor rod, the embedded electrode and the insulating material of the terminal for the superconducting cable to prevent the electric field of the current lead portion is concentrated, insulating oil and vacuum vessel of the room temperature portion It is an object of the present invention to provide a terminal structure for a superconducting cable to maintain the airtightness of the liver to prevent large pressure changes.
이와 같은 문제점을 해결하기 위해 안출한 본 발명에 따른 초전도 케이블용 단말구조는 절연유가 충진된 상온부와, 상기 상온부와 고정플랜지 결합되고 전류리드부를 구비하며 진공상태인 극저온부로 이루어진 초전도 케이블용 단말구조에 있어서, 상기 상온부와 극저온부의 결합부위 내부에는 전류리드부에 집중되는 전계를 완화하고, 상온부와 극저온부 사이의 기밀을 유지하기 위한 경계부가 형성되는 것을 특징으로 한다.The superconducting cable terminal structure according to the present invention devised to solve such a problem is a superconducting cable terminal consisting of a room temperature portion filled with insulating oil, and a cryogenic portion coupled to the room temperature portion and a fixed flange and having a current lead portion in a vacuum state. In the structure, a boundary portion is formed inside the coupling portion of the room temperature portion and the cryogenic portion to relax the electric field concentrated on the current lead portion and maintain the airtightness between the room temperature portion and the cryogenic portion.
도 1은 종래의 초전도 케이블용 단말의 내부 구조를 나타낸 개략도.1 is a schematic diagram showing the internal structure of a conventional superconducting cable terminal.
도 2는 본 발명에 따른 초전도 케이블용 단말의 내부 구조를 나타낸 개략도.Figure 2 is a schematic diagram showing the internal structure of a terminal for a superconducting cable according to the present invention.
도 3은 도 2의 요부 확대도.3 is an enlarged view illustrating main parts of FIG. 2;
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
10,100: 단말 20,220: 극저온부10,100: terminal 20,220: cryogenic part
22,222: 냉매통 24,224: 진공용기 22,222: refrigerant container 24,224: vacuum vessel
26,226: 질소 가스 저장조 30,330: 상온부 26,226: nitrogen gas storage tank 30,330: room temperature portion
32,332: 애자 40,350: 전류리드부32,332: Aggregate 40,350: Current lead part
230: 고정플랜지 240: 하부도체230: fixed flange 240: lower conductor
340: 상부도체 400: 경계부340: upper conductor 400: boundary
410: 금속도체봉 420: 매입전극410: metal conductor rod 420: embedded electrode
422: 결합편 430: 절연재422: bonding piece 430: insulating material
이하, 본 발명의 구성을 첨부한 도면을 참조하여 더욱 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the configuration of the present invention will be described in more detail.
도 2는 본 발명에 따른 초전도 케이블용 단말의 내부 구조를 나타낸 개략도이고, 도 3은 도 2의 요부 확대도이다.Figure 2 is a schematic diagram showing the internal structure of the terminal for a superconducting cable according to the present invention, Figure 3 is an enlarged view of the main part of Figure
종래의 기술과 동일 또는 유사한 구성요소에 대해서는 유사한 도면 부호를 부여하며, 상세한 설명은 생략한다.The same or similar elements as in the prior art are denoted by the same reference numerals, and detailed description thereof will be omitted.
도 2 및 도 3에 도시된 바와 같이, 본 발명에 따른 초전도 케이블용 단말구조는 절연유(334)가 충진된 상온부(330)와, 상온부(330)와 고정플랜지(230) 결합되고 전류리드부(350)를 구비하며 진공상태인 극저온부(220)로 이루어진 초전도 케이블용 단말구조에 있어서, 상온부(330)와 극저온부(220)의 결합부위 내부에는 상기 전류리드부(350)에 집중되는 전계를 완화하고, 상온부(330)와 극저온부(220) 사이의 기밀을 유지하기 위한 경계부(400)가 형성되는 것을 특징으로 한다.As shown in Figures 2 and 3, the terminal structure for the superconducting cable according to the present invention is coupled to the room temperature portion 330, the room temperature portion 330 and the fixed flange 230 filled with the insulating oil 334 and the current lead In the terminal structure for a superconducting cable having a portion 350 and the cryogenic portion 220 in a vacuum state, the current portion 350 is concentrated in the coupling portion between the room temperature portion 330 and the cryogenic portion 220. It is characterized in that the boundary 400 for alleviating the electric field to be maintained, the airtight between the room temperature portion 330 and the cryogenic portion 220 is formed.
그리고, 상기 경계부(400)는 상온부(330)에 삽설된 상부도체(340)와 극저온부(220)에 삽설된 하부도체(240)를 연결하는 금속도체봉(410)과, 상기 상온부(330)와 극저온부(220)와 함께 플랜지 결합되며 금속도체봉(410)을 감싸면서 그 양끝단이 라운드로 형성된 매입전극(420), 및 상기 금속도체봉(410) 및 매입전극(420)과 함께 사출 성형되는 절연재(430)로 형성된다.In addition, the boundary portion 400 is a metal conductor rod 410 connecting the upper conductor 340 inserted into the room temperature portion 330 and the lower conductor 240 inserted into the cryogenic portion 220, and the room temperature portion ( 330 and the cryogenic portion 220 are flange-coupled with a buried electrode 420 formed at both ends of the electrode rod 420, and the metal conductor rod 410 and the buried electrode 420 are wrapped around the metal conductor rod 410. It is formed of an insulating material 430 that is injection molded together.
이때, 상기 금속도체봉(410)과 매입전극(420) 및 절연재(430)가 일체로 형성된다.In this case, the metal conductor rod 410, the buried electrode 420, and the insulating material 430 are integrally formed.
한편, 상기 절연재(430)는 에폭시수지로 인서트 몰딩되던가 또는 고무재질로 인서트 몰딩된다.On the other hand, the insulating material 430 is insert molded with epoxy resin or insert molded with a rubber material.
이하, 본 발명의 일실시예에 따른 구성을 상세히 설명한다.Hereinafter, the configuration according to an embodiment of the present invention will be described in detail.
도 2에 도시된 바와 같이, 본 발명에 따른 초전도 케이블용 단말(100)은 하부 내부에 형성되는 냉매통(222)과, 극저온 기기의 하부도체(240)로부터 상온부(330)로 전기적 도통을 얻는 전류리드부(current lead unit,350)와, 냉매통(222)의 외측을 덮는 진공용기(224)와, 진공용기(224)의 상부로 돌출하여 접속되는 애자(insulator,332)를 구비한다.As shown in FIG. 2, the terminal 100 for a superconducting cable according to the present invention has a coolant cylinder 222 formed inside the lower portion, and electrical conduction from the lower conductor 240 of the cryogenic device to the room temperature portion 330. A current lead unit 350 to be obtained, a vacuum vessel 224 covering the outer side of the coolant vessel 222, and an insulator 332 which protrudes and is connected to the upper portion of the vacuum vessel 224. .
극저온 기기로부터 도입된 하부도체(240)에는 거의 직각 방향으로 전류리드부(350)가 접속되어 있다.The current lead portion 350 is connected to the lower conductor 240 introduced from the cryogenic device in a substantially perpendicular direction.
상기 전류리드부(350)는 중심에 하부도체(240)를 가지고, 그 주위에 에틸렌프로필렌 고무 등의 고체 절연을 피복한 것으로, 진공용기(224)와 애자(332)와의 접합면을 관통하여 애자(332) 내에 수납되어 있다.The current lead unit 350 has a lower conductor 240 at the center thereof, and is coated with a solid insulation such as ethylene propylene rubber around the core, and passes through the junction surface between the vacuum vessel 224 and the insulator 332. It is housed in 332.
상기 애자(332)의 내부에는 6불화황(SF6) 등의 절연유(334)가 충전되어 있다.The insulator 332 is filled with insulating oil 334 such as sulfur hexafluoride (SF 6 ).
상기 냉매통(222) 내에는 액체 질소(223)가 축적되어 있다.Liquid nitrogen 223 is accumulated in the coolant cylinder 222.
따라서, 상기한 단말(100)의 구조는 극저온 기기에서 순서대로 액체 질소(223)에 침지된 극저온부(220), 질소 가스 저장조(226), 애자(332) 내의 상온부(330) 및 애자(332)까지 연통 형성되어 있다.Therefore, the structure of the terminal 100 is a cryogenic unit 220, nitrogen gas storage tank 226, insulator 332, the room temperature unit 330 and insulator (immersed in liquid nitrogen 223 in order in the cryogenic equipment) Up to 332).
또한, 상기 단말(100)의 냉매통(222)은 극저온부(220)와 연결되어 있다.In addition, the refrigerant cylinder 222 of the terminal 100 is connected to the cryogenic portion 220.
그리고, 상기 극저온부(220)는 상온부(330)와 고정플랜지(230)로 결합되어 있다.The cryogenic part 220 is coupled to the room temperature part 330 and the fixed flange 230.
상기 극저온부(220)의 내부에는 전류리드부(350)가 액체 질소(223)가 내장된 냉매통(222)과 연결되어 있다.Inside the cryogenic part 220, the current lead part 350 is connected to the refrigerant container 222 in which the liquid nitrogen 223 is embedded.
상기 전류리드부(350)는 그 내부에 삽설된 하부도체(240)를 포함한다.The current lead unit 350 includes a lower conductor 240 inserted therein.
또한, 상기 상온부(330)의 내부에는 상부도체(340)와 삽설되어 있다.In addition, an upper conductor 340 is inserted into the room temperature unit 330.
이때, 상기 상부도체(340)와 하부도체(240)는 상온부(330)와 극저온부(220)의 결합되는 경계부분에서 경계부(400)에 의해 연결된다.In this case, the upper conductor 340 and the lower conductor 240 are connected by the boundary 400 at the boundary portion of the room temperature unit 330 and the cryogenic unit 220.
상기 상온부(330)와 극저온부(220)는 고정플랜지(230)에 의해 결합된다.The room temperature unit 330 and the cryogenic unit 220 are coupled by a fixed flange 230.
상기 고정플랜지(230)는 볼트와 너트(도시하지 않음)에 의해 체결되고, 그 사이에 오링(도시하지 않음)이 개재되게 된다.The fixing flange 230 is fastened by a bolt and a nut (not shown), and the O-ring (not shown) is interposed therebetween.
그리고, 상기 경계부(400)는 상온부(330)에 삽설된 상부도체(340)와 극저온부(220)에 삽설된 하부도체(240)를 연결하는 금속도체봉(410)과, 상온부(330)와 극저온부(220)와 함께 고정플랜지(230) 결합되며 금속도체봉(410)을 감싸면서 그 양끝단이 라운드로 형성된 매입전극(420)과, 금속도체봉(410), 매입전극(420)과 함께 일체로 사출 성형되는 절연재(430)로 이루어진다.In addition, the boundary part 400 is a metal conductor rod 410 connecting the upper conductor 340 inserted into the room temperature unit 330 and the lower conductor 240 inserted into the cryogenic part 220, and the room temperature unit 330. ) And the cryogenic portion 220 are coupled to the fixed flange 230 and surround the metal conductor rod 410 and both ends of the buried electrode 420, the metal conductor rod 410, and the buried electrode 420. ) Is integrally injection molded with an insulating material (430).
상기 상부도체(340)와 하부도체(240)의 끝단은 금속도체봉(410)에 의해 연결된다.Ends of the upper conductor 340 and the lower conductor 240 are connected by a metal conductor rod 410.
한편, 상기 금속도체봉(410)은 매입전극(420)으로 둘러싸여 있다.Meanwhile, the metal conductor rod 410 is surrounded by the buried electrode 420.
이때, 상기 매입전극(420)은 상온부(330)와 극저온부(220)의 경계부분의 내부에 형성된다.In this case, the buried electrode 420 is formed inside the boundary between the room temperature part 330 and the cryogenic part 220.
상기 매입전극(420)의 양쪽 가장자리에는 라운드(round) 처리되어 있다.Both edges of the buried electrode 420 are rounded.
그리고, 상기 매입전극(420)의 측면에는 결합편(422)이 연장 형성되어 상온부(330)와 극저온부(220)의 고정플랜지(230) 사이에 개재되어 고정되면서 기밀을 유지하게 된다.In addition, the side of the buried electrode 420, the coupling piece 422 is extended to be interposed between the fixing flange 230 of the room temperature portion 330 and the cryogenic portion 220 to be kept airtight.
상기 상온부(330)와 극저온부(220)의 고정플랜지(230) 및 결합편(422) 사이에는 오링(도시하지 않음)이 더 개재되어 기밀효과를 극대화하는 것이 바람직하다.O-ring (not shown) is further interposed between the fixing flange 230 and the coupling piece 422 of the room temperature part 330 and the cryogenic part 220 to maximize the airtight effect.
이때, 상기 매입전극(420)은 단면으로 봤을 때 대략 'L'자 형상을 하고 있다.At this time, the buried electrode 420 has a substantially 'L' shape when viewed in cross section.
상기 고정플랜지(230)와 결합편(422)은 볼트와 너트(도시하지 않음)에 의해 체결되는 것이 바람직하다.The fixing flange 230 and the coupling piece 422 is preferably fastened by a bolt and a nut (not shown).
그리고, 상기 매입전극(420)에는 '0'볼트(zero voltage)가 인가된다.In addition, a zero voltage is applied to the buried electrode 420.
또한, 상기 상부도체(340)에는 고압볼트(high voltage)가 인가된다.In addition, a high voltage is applied to the upper conductor 340.
그래서, 상기 매입전극(420)의 양쪽 가장자리는 라운드(round) 처리되어 완만한 전계(電界)를 형성하도록 한다.Thus, both edges of the buried electrode 420 are rounded to form a gentle electric field.
상기 매입전극(420)의 양쪽 가장자리는 단말(100)의 내부에 사용되는 매질의 종류에 따라 곡률을 달리한다.Both edges of the buried electrode 420 vary in curvature according to the type of medium used in the terminal 100.
한편, 상기 금속도체봉(410)과 매입전극(420)은 절연재(430)와 함께 사출 성형되며 모두 일체로 형성된다.On the other hand, the metal conductor rod 410 and the buried electrode 420 is injection molded together with the insulating material 430 and are all formed integrally.
상기 절연재(430)는 에폭시수지로 인서트 몰딩되던가 또는 고무재질로 인서트 몰딩된다.The insulating material 430 may be insert molded with epoxy resin or insert molded with rubber material.
이때, 상기 절연재(430)는 금속도체봉(410)과 매입전극(420) 사이의 두께를 단말(100)의 내부에 사용되는 매질의 종류에 따라 달리한다.In this case, the insulating material 430 varies the thickness between the metal conductor rod 410 and the buried electrode 420 according to the type of medium used in the terminal 100.
상기 매입전극(420)의 양쪽 가장자리에 곡률을 형성하는 것과, 절연재(430)의 두께를 결정하는 요소는 매질의 종류에 의해서 달라지며, 전계를 완화시키는 범위 내에서 그 수치를 정한다.Forming curvature at both edges of the buried electrode 420 and determining the thickness of the insulating material 430 vary depending on the type of the medium, and determine the numerical value within the range to relax the electric field.
상기한 바와 같이 본 발명에 따른 초전도 케이블용 단말구조에 의하면, 금속 도체봉과 매입 전극 및 절연재가 일체형으로 되어 있기 때문에 전계를 완화할 수 있고, 기밀유지를 할 수 있을 뿐만 아니라, 조립 작업도 간편한 효과가 있다.As described above, according to the terminal structure for the superconducting cable according to the present invention, since the metal conductor rod, the embedded electrode, and the insulating material are integrated, the electric field can be alleviated, the airtightness can be maintained, and the assembling work is easy. There is.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110005537A (en) * | 2009-07-10 | 2011-01-18 | 엘에스전선 주식회사 | Termination structure of superconducting cable having coated current lead |
| KR20180055479A (en) * | 2016-11-17 | 2018-05-25 | 한국전기연구원 | Terminal device for superconducting cable |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100892561B1 (en) | 2008-01-25 | 2009-04-09 | 엘에스전선 주식회사 | Terminal apparatus with built-in a fault current limiter for superconducting cable system |
| KR102371185B1 (en) | 2015-10-29 | 2022-03-04 | 한국전기연구원 | Terminal device for superconducting cable |
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2003
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110005537A (en) * | 2009-07-10 | 2011-01-18 | 엘에스전선 주식회사 | Termination structure of superconducting cable having coated current lead |
| KR20180055479A (en) * | 2016-11-17 | 2018-05-25 | 한국전기연구원 | Terminal device for superconducting cable |
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