The Experimental Study of Breakdown Characteristics for Oil-paper Insulation under Low Temperature
Hanwu Luo, Liankai Chen, Guoyi Jiang, Shigang Cui, Haibo Liu, Shaocheng Jiang
Available Online March 2017.
- https://doi.org/10.2991/ifmca-16.2017.121How to use a DOI?
- Transformer, oil-paper insulation, low temperature, breakdown characteristics, water content
- The large power transformer will operate under low temperature in Inner Mongolia, Xinjiang and Northeast provinces in China. In order to study the breakdown characteristics of transformer oil-paper insulation at low temperature, a high-voltage and low-temperature test system for transformer oil-paper insulation breakdown characteristics was established. The effects of content Water to oil and oil-paper composite insulation breakdown characteristics in -50 ° C to 20 ° C range were obtained. The experimental results show that the breakdown voltage of the transformer oil decreases and then increases with the decrease of the temperature. For the oil-paper composite insulation, when the water content is low, the breakdown voltage increases with the decrease of the temperature. When the water content is high, the breakdown voltages decrease significantly in the early stage. When the temperature is below -10 C, the breakdown voltage increase sharply but decrease significantly after reach the peak value. The lower temperature correspond to the minimum breakdown voltage, and the lower the breakdown voltage.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Hanwu Luo AU - Liankai Chen AU - Guoyi Jiang AU - Shigang Cui AU - Haibo Liu AU - Shaocheng Jiang PY - 2017/03 DA - 2017/03 TI - The Experimental Study of Breakdown Characteristics for Oil-paper Insulation under Low Temperature BT - Proceedings of the 2016 International Forum on Mechanical, Control and Automation (IFMCA 2016) PB - Atlantis Press SP - 777 EP - 781 SN - 2352-5401 UR - https://doi.org/10.2991/ifmca-16.2017.121 DO - https://doi.org/10.2991/ifmca-16.2017.121 ID - Luo2017/03 ER -