建筑电气
建築電氣
건축전기
BUILDING ELECTRICITY
2014年
2期
50-55
,共6页
接地电阻%接地装置%土壤电阻率%接触电位差%跨步电位差%降阻剂%深井接地%斜井降阻技术
接地電阻%接地裝置%土壤電阻率%接觸電位差%跨步電位差%降阻劑%深井接地%斜井降阻技術
접지전조%접지장치%토양전조솔%접촉전위차%과보전위차%강조제%심정접지%사정강조기술
earthing resistance%earth-termination system%soil resistivity%contact potential difference%step potential difference%resistance reducing agent%deep well earthing%deviated-well resistance reducing technology
结合某110 kV变电站接地装置工程的实践，对该站所处的环境情况、气象资料、土质和土壤状况等进行实地勘测，考虑接地电阻、接触电位差和跨步电位差应满足的要求，对该站接地装置进行设计。通过对比采取措施前后接地电阻的大小，选取结合深斜井的降阻设计方案，得到符合要求的电阻值，从而论证接地电阻改善方法的有效性和可行性。
結閤某110 kV變電站接地裝置工程的實踐，對該站所處的環境情況、氣象資料、土質和土壤狀況等進行實地勘測，攷慮接地電阻、接觸電位差和跨步電位差應滿足的要求，對該站接地裝置進行設計。通過對比採取措施前後接地電阻的大小，選取結閤深斜井的降阻設計方案，得到符閤要求的電阻值，從而論證接地電阻改善方法的有效性和可行性。
결합모110 kV변전참접지장치공정적실천，대해참소처적배경정황、기상자료、토질화토양상황등진행실지감측，고필접지전조、접촉전위차화과보전위차응만족적요구，대해참접지장치진행설계。통과대비채취조시전후접지전조적대소，선취결합심사정적강조설계방안，득도부합요구적전조치，종이론증접지전조개선방법적유효성화가행성。
Based on the practice of a earth-termination system project at a 110 kV transformer substation, field investigation on the environment condition, meteorological data, soil quality and soil condition in the said substation are conducted; the earth-termination system is designed considering the requirements for the earthing resistance, contact potential difference and step potential difference. Measures are taken to compare the earthing resistances before and after the improvement, and a resistance reduction design scheme characterized by deep-deviated wells combination is chosen to acquire corresponding resistances meeting the requirements, so as to demonstrate the effectiveness and feasibility of the earthing resistance improvement method.
