拉萨换流站接地极施工技术  

Earth-pole Construction Technology of Lhasa Converter Station

作　　者：张雄[1] 张海英[1] 胡胜根[1] 

机构地区：[1]武警水电第二总队第六支队,福建厦门361021

出　　处：《施工技术》2014年第12期87-90,共4页Construction Technology

摘　　要：对直流输电系统中接地极的原理、构成和技术要求进行阐述,并通过青海—西藏±400kV直流输电工程拉萨换流站接地极的施工实践,详细介绍了环形接地极的施工流程和施工技术要点,重点对放样定位、极槽开挖、铺垫炭床、电极焊接、电极敷设、引流电缆连接等工程环节进行详细描述。Authors analyze the DC transmission system principle, the grounding structure and technical requirements. Based on the construction practice of Qinghai-Tibet ±400kV DC transmission project of Lhasa Converter Station, the construction process and key points of the annular grounding is introduced in detail. The construction steps are described in detail, such as the setting out, trench excavation, foundation, welding electrodes, the electrode carbon bed laying, cable connection, drainage engineering link.

关 键 词：换流站 直流 接地极 施工技术 

分 类 号：TM862[电气工程—高电压与绝缘技术]