南方能源建设
南方能源建設
남방능원건설
Energy Construction
2015年
3期
112-117
,共6页
独立接地极%共用接地极%改造%性能指标%环境影响
獨立接地極%共用接地極%改造%性能指標%環境影響
독립접지겁%공용접지겁%개조%성능지표%배경영향
independent earth electrode%common earth electrode%reconstruct%main performance%environmental effect
为解决直流输电工程接地极选址困难的问题及减少对环境的影响，建议具备条件下优先考虑将已建独立接地极改造为共用接地极。对已建独立接地极要对其跨步电压、腐蚀寿命、最大温升、导体载流量等性能指标进行校核，并根据校核结果确定相应的改造项目，同时要重新评估接地极对交流电网、油气管道以及铁路设施的影响。
為解決直流輸電工程接地極選阯睏難的問題及減少對環境的影響，建議具備條件下優先攷慮將已建獨立接地極改造為共用接地極。對已建獨立接地極要對其跨步電壓、腐蝕壽命、最大溫升、導體載流量等性能指標進行校覈，併根據校覈結果確定相應的改造項目，同時要重新評估接地極對交流電網、油氣管道以及鐵路設施的影響。
위해결직류수전공정접지겁선지곤난적문제급감소대배경적영향，건의구비조건하우선고필장이건독립접지겁개조위공용접지겁。대이건독립접지겁요대기과보전압、부식수명、최대온승、도체재류량등성능지표진행교핵，병근거교핵결과학정상응적개조항목，동시요중신평고접지겁대교류전망、유기관도이급철로설시적영향。
Inorder to solve the difficulties of earth electrode site selection and environment problems in DC transmission engineering, the proposed solution is to reconstruct independent earth electrode to common earth electrode.The main performance such as step volt-age, corrosion life, maximum temperature rise, conductor capacity must be verified during the transformation period, and according to the verification results to determine the corresponding transformation project.At the same time, the effect of earth electrode on AC power network, oil and gas pipeline, railway facilities should be reviewed.
