330 kV升压变压器中性点保护问题讨论 |
| |
引用本文: | 吕景顺,王寅仲,王 欣,彭 鹏.330 kV升压变压器中性点保护问题讨论[J].电网与水力发电进展,2010,26(1):45-47. |
| |
作者姓名: | 吕景顺 王寅仲 王 欣 彭 鹏 |
| |
作者单位: | 甘肃电力科学研究院,兰州 730050;甘肃电力科学研究院,兰州 730050;甘肃电力科学研究院,兰州 730050;甘肃电力科学研究院,兰州 730050 |
| |
基金项目: | 国家863计划项目(2007AA04Z423) |
| |
摘 要: | 描述并分析了甘肃电网330kV发电厂升压变压器中性点接地方式及所承受的过电压种类和水平。提出这类变压器中性点保护方法,并给出了具体保护方案:采用合理的保护间隙保护330kV变压器中性点绝缘的方案较可靠,也简便易行。
|
关 键 词: | 变压器中性点 升压变压器 有效接地 保护间隙 |
Discussions on Protection Methods for Neutral Point of the 330 kV Step-up Transformer |
| |
Authors: | LV Jing-shun WANG Yin-zhong WANG Xin and PENG Peng |
| |
Affiliation: | (Gansu Electric Power Research Institute, Lanzhou 730050, Gansu Province, China) |
| |
Abstract: | In this paper, the writer looks into different grounding methods for neutral points, the types and levels of the over-voltages of the 330 kV step-up transformers. Based on the analysis, he proposes the protection method and concrete schemes for the neutral points. A reasonable protection gap as proposed turns out to be an easy and reliable solution for protection of the neutral point insulation of the 330 kV transformer. |
| |
Keywords: | neutral point of transformer step-up transformer effective grounding protective gap |
本文献已被 CNKI 维普 万方数据 等数据库收录! |
| 点击此处可从《电网与水力发电进展》浏览原始摘要信息 |
|
点击此处可从《电网与水力发电进展》下载全文 |