Understanding the Impact of Moisture and Ageing of Transformer Insulation on Frequency Domain Spectroscopy

被引：6
|
作者：
Jadav, Raj B. [1 ]
Ekanayake, Chandima [1 ]
Saha, Tapan K. [1 ]
机构：
[1] Univ Queensland, Sch Informat Technol & Elect Engn, St Lucia, Qld 4072, Australia
来源：
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2014年 / 21卷 / 01期
关键词：
Ageing; paper insulation; frequency domain spectroscopy; moisture; OIL IMPREGNATED CELLULOSE; POWER TRANSFORMERS; DIELECTRIC RESPONSE; PAPER INSULATION;
D O I：
10.1109/TDEI.2013.003984
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：
Moisture is one of the most significant parameters that can accelerate ageing in paper/pressboard insulation. In order to understand the impact of moisture and ageing on Frequency Domain Spectroscopy (FDS) measurements, oil impregnated pressboard samples of different moisture contents are prepared and aged at 105 degrees C temperature. FDS measurements on pressboard samples are carried out at different ageing time. Other measurements such as moisture, degree of polymerization (DP), Furan and Dissolved Gas Analysis (DGA) are also performed on oil and pressboard samples. It is observed that FDS measurements on pressboard samples are mostly influenced by the moisture contents. Several other pressboard samples are prepared under different conditions to determine how FDS measurements are affected by moisture, aged oil and ageing of pressboard sample considering each of the parameter individually as well as in different combinations. Results suggest that FDS measurements are sensitive to the change in moisture, ageing products and ageing of pressboard (DP) sample. However, impact of ageing products and ageing of pressboard sample (DP) on FDS measurements are smaller in comparison to moisture.
引用
收藏
页码：369 / 379
页数：11
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