新型長壽命多針式垂直接地體模具設(shè)計及應(yīng)用
孫長海1,尚京城1,許磊2,文建2,王峰2
(1 大連理工大學 電氣工程學院,遼寧 大連 116024;2 國網(wǎng)山東省電力公司濟寧供電公司,山東 濟寧 272000)
摘 要:基于沒有完善的成型模具用于制造接地體,以及焊接成本偏高、焊接效率低下等問題,依據(jù)垂直接地體的制造工藝,研制出一套新型多針式垂直接地體成型模具,依托新型成型模具,制造出新型多針式垂直接地體,并成功實現(xiàn)了濟寧張莊變電站接地系統(tǒng)的工程應(yīng)用。經(jīng)工程驗證,模具熔接工藝滿足國家規(guī)范要求且高效、可靠、低成本,可為變電站接地系統(tǒng)的高效長壽命服役特性提供指導。
關(guān)鍵詞:接地;多針式垂直接地體;模具工藝;長壽命
中圖分類號:TM645 文獻標識碼:B 文章編號:1007-3175(2018)01-0054-06
Design and Application of a New Mould of Multi-Needle Vertical Grounding Body Owning Long Service Life
SUN Chang-hai1, SHANG Jing-cheng1, XU Lei2, WEN Jian2, WANG Feng2
(1 School of Electrical Engineering Dalian University of Technology, Dalian 11 6024, China;
2 State Grid Shandong Electric Power Company, Jining Power Supply Company, Jining 272000, China)
Abstract: Based on the problems such as, the incomplete forming die used for manufacturing the grounding body, the too high welding cost and the low welding efficiency, this paper designed a new multi-needle mould for vertical grounding body according to the manufacturing process of vertical grounding body. The new type of multi-needle vertical grounding body was fabricated on the basis of a new type of forming die and the grounding system realized the engineering application in Zhangzhuang substation of Jining. The engineering verification shows that the die welding process meets the requirements of the national standard with high efficiency, reliability and low cost. The process can provide certain guidance for the high efficiency and long service life of the substation grounding system.
Key words: grounding; multi-needle vertical grounding; die technology; long service life
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