油田配电网中性点接地方式的优化及认识  

Optimization and understanding of neutral grounding way in oilfield distribution net⁃work

作　　者：白城利 BAI Chengli(Inner Mongolia Hailar Power Supply Branch of Electric Power Technical Service Company,CNPC)

机构地区：[1]中油电能电力技术服务公司内蒙古海拉尔供电分公司

出　　处：《石油石化节能与计量》2024年第2期70-74,共5页Energy Conservation and Measurement in Petroleum & Petrochemical Industry

摘　　要：配电网系统是油田生产的动力系统,配电网的经济、安全运行,直接关系到油田的产量及生产成本。配电网中性点接地方式的选择决定了配电网的经济性和可行性。目前油田配电网主要采用中性点不接地的方式,随着油田电网规模逐渐扩大,该方式已逐渐暴露出易断电、检修速度慢的缺点。通过分析原有中性点接地方式在生产运行中存在的问题,探讨现场试运行配电网中性点经消弧线圈并联电阻接地的优势及在油田应用的可行性。试验表明,该接地方式可为油田提供更加安全、可靠的配电系统,可实现提高油田生产时率、降低运行成本、减轻劳动强度的目的,具有良好的推广应用前景。The distribution network system is the power system of oilfield production.The economic and safe operation of distribution network is directly related to the output and production cost of oilfield.The selection of neutral grounding way for distribution network is determined the economics and feasibility of distribution network.At present,the distribution network of oilfield mainly has been adopted the mode of ungrounded neutral point.With the gradual expansion of oilfield power grid scale,this way has been gradually exposed the shortcomings of easy power failure and slow maintenance speed.The existing problems of the original neutral grounding way in production operation are analyzed,the advantages of parallel resistance grounding for the field-testing distribution network neutral point through arcing coil are discussed,as well as the feasibility of the application in oilfield.The field test shows that the change of grounding method can be provided a more secure and reliable distribution system for oilfield,which realizes the purpose of improving the production time rate,reducing the operating cost and reducing the labor time,and has a good popularization and application prospect.

关 键 词：油田配电网 中性点 经消弧线圈并联电阻接地方式 故障指示 

分 类 号：TM862[电气工程—高电压与绝缘技术] TE43[石油与天然气工程—油气田开发工程]