施工技术
施工技術
시공기술
CONSTRUCTION TECHNOLOGY
2014年
12期
87-90
,共4页
换流站%直流%接地极%施工技术
換流站%直流%接地極%施工技術
환류참%직류%접지겁%시공기술
converter station%direct current( DC)%earth-pole%construction
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。
對直流輸電繫統中接地極的原理、構成和技術要求進行闡述，併通過青海-西藏±400kV直流輸電工程拉薩換流站接地極的施工實踐，詳細介紹瞭環形接地極的施工流程和施工技術要點，重點對放樣定位、極槽開挖、鋪墊炭床、電極銲接、電極敷設、引流電纜連接等工程環節進行詳細描述。
대직류수전계통중접지겁적원리、구성화기술요구진행천술，병통과청해-서장±400kV직류수전공정랍살환류참접지겁적시공실천，상세개소료배형접지겁적시공류정화시공기술요점，중점대방양정위、겁조개알、포점탄상、전겁한접、전겁부설、인류전람련접등공정배절진행상세묘술。
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.
