The residual ac breakdown voltage of 6.6 kV dry-cured XLPE power cable under wet-accelerated aging tests

被引：5

作者：

Hashizume, T ^{[1
]}

Shinoda, C ^{[1
]}

Nakamura, K ^{[1
]}

Hotta, M ^{[1
]}

Tani, T ^{[1
]}

机构：

[1] Yazaki Elect Wire Co Ltd, Power Cable R&D, Numazu, Japan

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 1998年 / 5卷 / 02期

关键词：

D O I：

10.1109/94.671925

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The residual ac breakdown voltage decreased to about half of the initial breakdown voltage after 3 months of accelerated aging test under immersion. This decrease was found to be caused mainly by a trace amount of moisture existing in the insulation. However, the breakdown voltage did not further decrease with increasing moisture content. In order to clarify the influence of moisture, the state of water existing in the insulation was investigated using FTIR (Fourier transform infrared spectroscopy) and optical microscopy. From these results, it was concluded that the moisture in the amorphous region and/or at the interface next to the crystal region caused the reduction of the ac breakdown voltage.

引用

页码：169 / 173

页数：5

共 2 条

[1] Electrical breakdown strength of 5 kV XLPE cable with imperfections under combined ac-dc voltage
Grzybowski, S
Fan, J
[J]. CONFERENCE RECORD OF THE 1996 IEEE INTERNATIONAL SYMPOSIUM ON ELECTRICAL INSULATION, VOLS 1 AND 2, 1996, : 616 - 619
[2] Insulation Characteristics of Dry-cured and Extruded Three-layer (E-E Type) 6.6 kV Removed XLPE Cables with Additional Accelerated Water-tree Degradation
Kurihara, Takashi
Sato, Tomoyuki
Homma, Kenji
[J]. 2017 INTERNATIONAL SYMPOSIUM ON ELECTRICAL INSULATING MATERIALS (ISEIM), VOLS 1 & 2, 2017, : 110 - 113

← 1 →