KR102012603B1 - 초고압 직류 전력케이블 - Google Patents
초고압 직류 전력케이블 Download PDFInfo
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Abstract
Description
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|
가교부산물 함량(ppm) | ||||
| α-CA | AP | α-MS | 총합 | ||
| 실시예1 | 평균 | 6567 | 2582 | 74 | 9224 |
| 실시예2 | 평균 | 6418 | 2642 | 75 | 9135 |
| 실시예3 | 평균 | 6026 | 2419 | 12 | 8456 |
| 비교예1 | 평균 | 6782 | 2928 | 72 | 9782 |
| 비교예2 | 평균 | 6665 | 3157 | 89 | 9911 |
| 비교예3 | 평균 | 6565 | 2969 | 79 | 9613 |
| 온도별 체적저항(Ω·㎝) | ||||
| 25℃ | 50℃ | 70℃ | 90℃ | |
| 실시예1 | 1.4548E+18 | 3.6285E+17 | 9.1698E+16 | 3.0254E+16 |
| 실시예2 | 1.0793E+17 | 4.4218E+16 | 1.1481E+15 | 2.4650E+14 |
| 실시예3 | 1.7669E+17 | 5.8699E+15 | 9.3909E+15 | 2.6614E+15 |
| 비교예1 | 3.5186E+17 | 2.6595E+16 | 1.0000E+14 | 7.5039E+13 |
| 비교예2 | 1.5955E+17 | 1.4241E+16 | 1.0482E+15 | 1.2053E+14 |
| 비교예3 | 5.6266E+17 | 4.6806E+15 | 4.1431E+14 | 1.6171E+13 |
214 : 절연층 216 : 외부 반도전층
218 : 금속시스층 220 : 내부 시스
Claims (9)
- 초고압 직류 전력케이블로서,
복수의 소선이 연선되어 형성된 도체;
상기 도체를 감싸는 내부 반도전층;
상기 내부 반도전층을 감싸는 절연층; 및
상기 절연층을 감싸는 외부 반도전층을 포함하고,
상기 절연층은 폴리올레핀 수지, 무기입자 및 가교제를 포함하는 절연 조성물로부터 형성되며,
상기 절연층은 이의 두께를 3등분하여 내층, 중층 및 외층으로 구분되며, 상기 내층에 포함된 가교 부산물 중 α-쿠밀알코올(α-cumyl alcohol; α-CA), 아세토페논(acetophenone; AP) 및 α-메틸스티렌(α-methyl styrene; α-MS)의 총 함량, 상기 중층에 포함된 가교부산물 중 α-쿠밀알코올(α-cumyl alcohol; α-CA), 아세토페논(acetophenone; AP) 및 α-메틸스티렌(α-methyl styrene; α-MS)의 총 함량 및 상기 외층에 포함된 α-쿠밀알코올(α-cumyl alcohol; α-CA), 아세토페논(acetophenone; AP) 및 α-메틸스티렌(α-methyl styrene; α-MS)의 총 함량의 평균값이 9,300 ppm 이하이고,
아래 수학식 1로 정의되는 전계상승계수(Field Enhancement Factor; FEF)가 140% 이하인 것을 특징으로 하는, 초고압 직류 전력케이블.
[수학식 1]
FEF=(절연 시편에서 최대로 증가된 전계/절연 시편에 인가된 전계)*100
상기 수학식 1에서,
상기 절연 시편은 상기 절연층을 형성하는 절연 조성물의 가교에 의해 제조되고 두께가 100 내지 200 ㎛인 시편이고,
상기 절연 시편에 인가된 전계는 상기 절연 시편에서 서로 마주보는 면에 각각 연결된 전극에 인가된 직류 전계로서 20 내지 50kV/mm이고,
상기 절연 시편에서 최대로 증가된 전계는 상기 절연 시편에 1시간 동안 20 내지 50kV/mm의 직류 전계를 인가하는 과정에서 증가된 전계 중 최대값이다. - 삭제
- 제1항에 있어서,
평균전계 20 kV/mm일 때, 상기 절연층의 70℃에서의 체적저항이 1.0×1015 Ω·㎝ 이상이고, 상기 절연층의 90℃에서의 체적저항이 1.0×1014 Ω·㎝ 이상이며, 상기 절연층의 70℃에서의 체적저항 대비 90℃에서의 체적저항 감소율이 95% 이하인 것을 특징으로 하는, 초고압 직류 전력케이블. - 제1항 또는 제3항에 있어서,
상기 가교제의 함량은 상기 절연 조성물의 총 중량을 기준으로 0.1 중량% 이상 2 중량% 미만인 것을 특징으로 하는, 초고압 직류 전력케이블. - 제1항 또는 제3항에 있어서,
상기 무기입자의 함량은 상기 베이스 수지 100 중량부를 기준으로 0.01 내지 10 중량부인 것을 특징으로 하는, 초고압 직류 전력케이블. - 제4항에 있어서,
상기 가교제는 과산화물계 가교제인 것을 특징으로 하는, 초고압 직류 전력케이블. - 제6항에 있어서,
상기 과산화물계 가교제는 디큐밀퍼옥사이드, 벤조일퍼옥사이드, 라우릴퍼옥사이드, t-부틸 큐밀퍼옥사이드, 디(t-부틸 퍼옥시 아이소프로필) 벤젠, 2,5-디메틸-2,5-디(t-부틸 퍼옥시)헥산 및 디-t-부틸 퍼옥사이드로 이루어진 그룹으로부터 선택된 1종 이상을 포함하는 것을 특징으로 하는, 초고압 직류 전력케이블. - 제5항에 있어서,
상기 무기입자는 규산알루미늄, 규산칼슘, 탄산칼슘, 산화마그네슘, 카본나노튜브 및 그라파이트로 이루어진 그룹으로부터 선택된 1종 이상의 무기입자를 포함하는 것을 특징으로 하는, 초고압 직류 전력케이블. - 제8항에 있어서,
상기 무기입자는 비닐실란, 스테아린산, 올레인산 및 아미노폴리실록산으로 이루어진 그룹으로부터 선택된 1종 이상의 표면개질제에 의해 표면개질된 것을 특징으로 하는, 초고압 직류 전력케이블.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180154933A KR102012603B1 (ko) | 2018-12-05 | 2018-12-05 | 초고압 직류 전력케이블 |
| US16/282,630 US20200185123A1 (en) | 2018-12-05 | 2019-02-22 | High voltage direct current power cable |
| EP19159634.5A EP3664103A1 (en) | 2018-12-05 | 2019-02-27 | High voltage direct current power cable |
| CN201910151460.7A CN111276291B (zh) | 2018-12-05 | 2019-02-28 | 超高压直流电力电缆 |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020180154933A KR102012603B1 (ko) | 2018-12-05 | 2018-12-05 | 초고압 직류 전력케이블 |
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| KR102012603B1 true KR102012603B1 (ko) | 2019-08-20 |
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| US (1) | US20200185123A1 (ko) |
| EP (1) | EP3664103A1 (ko) |
| KR (1) | KR102012603B1 (ko) |
| CN (1) | CN111276291B (ko) |
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| EP3736835A1 (en) * | 2019-05-09 | 2020-11-11 | Siemens Gamesa Renewable Energy A/S | Electric cable for a wind turbine and wind turbine |
| KR102802966B1 (ko) * | 2020-06-20 | 2025-05-07 | 다이킨 고교 가부시키가이샤 | 와이어 및 케이블 형성 시스템 및 방법 |
| CN114792577B (zh) * | 2021-09-24 | 2023-05-30 | 特变电工山东鲁能泰山电缆有限公司 | 一种绝缘结构及高压直流电缆 |
| CN114184612B (zh) * | 2021-11-11 | 2024-03-26 | 南方电网科学研究院有限责任公司 | 一种交联聚乙烯电缆脱气效果评价方法 |
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| CN116386940A (zh) * | 2023-05-10 | 2023-07-04 | 中辰电缆(江西)有限公司 | 一种高压电缆 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111276291B (zh) | 2021-12-07 |
| EP3664103A1 (en) | 2020-06-10 |
| CN111276291A (zh) | 2020-06-12 |
| US20200185123A1 (en) | 2020-06-11 |
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